1135 lines
46 KiB
Java
1135 lines
46 KiB
Java
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/*
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* Copyright (c) 1996, 2006, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package java.lang.reflect;
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import sun.reflect.CallerSensitive;
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import sun.reflect.FieldAccessor;
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import sun.reflect.Reflection;
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import sun.reflect.generics.repository.FieldRepository;
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import sun.reflect.generics.factory.CoreReflectionFactory;
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import sun.reflect.generics.factory.GenericsFactory;
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import sun.reflect.generics.scope.ClassScope;
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import java.lang.annotation.Annotation;
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import java.util.Map;
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import sun.reflect.annotation.AnnotationParser;
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/**
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* A {@code Field} provides information about, and dynamic access to, a
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* single field of a class or an interface. The reflected field may
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* be a class (static) field or an instance field.
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*
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* <p>A {@code Field} permits widening conversions to occur during a get or
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* set access operation, but throws an {@code IllegalArgumentException} if a
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* narrowing conversion would occur.
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*
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* @see Member
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* @see java.lang.Class
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* @see java.lang.Class#getFields()
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* @see java.lang.Class#getField(String)
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* @see java.lang.Class#getDeclaredFields()
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* @see java.lang.Class#getDeclaredField(String)
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*
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* @author Kenneth Russell
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* @author Nakul Saraiya
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*/
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public final
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class Field extends AccessibleObject implements Member {
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private Class<?> clazz;
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private int slot;
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// This is guaranteed to be interned by the VM in the 1.4
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// reflection implementation
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private String name;
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private Class<?> type;
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private int modifiers;
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// Generics and annotations support
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private transient String signature;
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// generic info repository; lazily initialized
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private transient FieldRepository genericInfo;
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// Cached field accessor created without override
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private FieldAccessor fieldAccessor;
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// Cached field accessor created with override
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private FieldAccessor overrideFieldAccessor;
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// For sharing of FieldAccessors. This branching structure is
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// currently only two levels deep (i.e., one root Field and
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// potentially many Field objects pointing to it.)
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private Field root;
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// Generics infrastructure
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private String getGenericSignature() {return signature;}
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// Accessor for factory
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private GenericsFactory getFactory() {
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Class<?> c = getDeclaringClass();
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// create scope and factory
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return CoreReflectionFactory.make(c, ClassScope.make(c));
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}
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// Accessor for generic info repository
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private FieldRepository getGenericInfo() {
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// lazily initialize repository if necessary
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if (genericInfo == null) {
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// create and cache generic info repository
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genericInfo = FieldRepository.make(getGenericSignature(),
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getFactory());
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}
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return genericInfo; //return cached repository
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}
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/**
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* Package-private constructor used by ReflectAccess to enable
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* instantiation of these objects in Java code from the java.lang
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* package via sun.reflect.LangReflectAccess.
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*/
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Field(Class<?> declaringClass,
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String name,
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Class<?> type,
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int modifiers,
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int slot,
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String signature,
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byte[] unused)
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{
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this.clazz = declaringClass;
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this.name = name;
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this.type = type;
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this.modifiers = modifiers;
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this.slot = slot;
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this.signature = signature;
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}
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/**
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* Package-private routine (exposed to java.lang.Class via
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* ReflectAccess) which returns a copy of this Field. The copy's
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* "root" field points to this Field.
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*/
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Field copy() {
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// This routine enables sharing of FieldAccessor objects
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// among Field objects which refer to the same underlying
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// method in the VM. (All of this contortion is only necessary
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// because of the "accessibility" bit in AccessibleObject,
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// which implicitly requires that new java.lang.reflect
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// objects be fabricated for each reflective call on Class
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// objects.)
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Field res = new Field(clazz, name, type, modifiers, slot, signature, null);
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res.root = this;
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// Might as well eagerly propagate this if already present
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res.fieldAccessor = fieldAccessor;
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res.overrideFieldAccessor = overrideFieldAccessor;
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return res;
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}
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/**
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* Returns the {@code Class} object representing the class or interface
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* that declares the field represented by this {@code Field} object.
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*/
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public Class<?> getDeclaringClass() {
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return clazz;
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}
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/**
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* Returns the name of the field represented by this {@code Field} object.
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*/
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public String getName() {
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return name;
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}
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/**
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* Returns the Java language modifiers for the field represented
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* by this {@code Field} object, as an integer. The {@code Modifier} class should
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* be used to decode the modifiers.
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*
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* @see Modifier
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*/
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public int getModifiers() {
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return modifiers;
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}
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/**
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* Returns {@code true} if this field represents an element of
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* an enumerated type; returns {@code false} otherwise.
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*
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* @return {@code true} if and only if this field represents an element of
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* an enumerated type.
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* @since 1.5
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*/
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public boolean isEnumConstant() {
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return (getModifiers() & Modifier.ENUM) != 0;
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}
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/**
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* Returns {@code true} if this field is a synthetic
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* field; returns {@code false} otherwise.
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*
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* @return true if and only if this field is a synthetic
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* field as defined by the Java Language Specification.
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* @since 1.5
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*/
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public boolean isSynthetic() {
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return Modifier.isSynthetic(getModifiers());
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}
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/**
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* Returns a {@code Class} object that identifies the
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* declared type for the field represented by this
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* {@code Field} object.
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*
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* @return a {@code Class} object identifying the declared
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* type of the field represented by this object
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*/
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public Class<?> getType() {
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return type;
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}
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/**
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* Returns a {@code Type} object that represents the declared type for
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* the field represented by this {@code Field} object.
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*
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* <p>If the {@code Type} is a parameterized type, the
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* {@code Type} object returned must accurately reflect the
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* actual type parameters used in the source code.
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*
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* <p>If the type of the underlying field is a type variable or a
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* parameterized type, it is created. Otherwise, it is resolved.
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*
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* @return a {@code Type} object that represents the declared type for
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* the field represented by this {@code Field} object
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* @throws GenericSignatureFormatError if the generic field
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* signature does not conform to the format specified in
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* <cite>The Java™ Virtual Machine Specification</cite>
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* @throws TypeNotPresentException if the generic type
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* signature of the underlying field refers to a non-existent
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* type declaration
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* @throws MalformedParameterizedTypeException if the generic
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* signature of the underlying field refers to a parameterized type
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* that cannot be instantiated for any reason
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* @since 1.5
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*/
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public Type getGenericType() {
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if (getGenericSignature() != null)
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return getGenericInfo().getGenericType();
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else
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return getType();
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}
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/**
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* Compares this {@code Field} against the specified object. Returns
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* true if the objects are the same. Two {@code Field} objects are the same if
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* they were declared by the same class and have the same name
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* and type.
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*/
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public boolean equals(Object obj) {
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if (obj != null && obj instanceof Field) {
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Field other = (Field)obj;
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return (getDeclaringClass() == other.getDeclaringClass())
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&& (getName() == other.getName())
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&& (getType() == other.getType());
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}
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return false;
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}
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/**
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* Returns a hashcode for this {@code Field}. This is computed as the
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* exclusive-or of the hashcodes for the underlying field's
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* declaring class name and its name.
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*/
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public int hashCode() {
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return getDeclaringClass().getName().hashCode() ^ getName().hashCode();
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}
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/**
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* Returns a string describing this {@code Field}. The format is
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* the access modifiers for the field, if any, followed
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* by the field type, followed by a space, followed by
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* the fully-qualified name of the class declaring the field,
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* followed by a period, followed by the name of the field.
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* For example:
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* <pre>
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* public static final int java.lang.Thread.MIN_PRIORITY
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* private int java.io.FileDescriptor.fd
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* </pre>
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*
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* <p>The modifiers are placed in canonical order as specified by
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* "The Java Language Specification". This is {@code public},
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* {@code protected} or {@code private} first, and then other
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* modifiers in the following order: {@code static}, {@code final},
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* {@code transient}, {@code volatile}.
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*/
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public String toString() {
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int mod = getModifiers();
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return (((mod == 0) ? "" : (Modifier.toString(mod) + " "))
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+ getTypeName(getType()) + " "
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+ getTypeName(getDeclaringClass()) + "."
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+ getName());
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}
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/**
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* Returns a string describing this {@code Field}, including
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* its generic type. The format is the access modifiers for the
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* field, if any, followed by the generic field type, followed by
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* a space, followed by the fully-qualified name of the class
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* declaring the field, followed by a period, followed by the name
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* of the field.
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*
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* <p>The modifiers are placed in canonical order as specified by
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* "The Java Language Specification". This is {@code public},
|
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* {@code protected} or {@code private} first, and then other
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* modifiers in the following order: {@code static}, {@code final},
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* {@code transient}, {@code volatile}.
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*
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* @return a string describing this {@code Field}, including
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* its generic type
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*
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* @since 1.5
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*/
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public String toGenericString() {
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int mod = getModifiers();
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Type fieldType = getGenericType();
|
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return (((mod == 0) ? "" : (Modifier.toString(mod) + " "))
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||
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+ ((fieldType instanceof Class) ?
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getTypeName((Class)fieldType): fieldType.toString())+ " "
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+ getTypeName(getDeclaringClass()) + "."
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+ getName());
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}
|
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/**
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* Returns the value of the field represented by this {@code Field}, on
|
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* the specified object. The value is automatically wrapped in an
|
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* object if it has a primitive type.
|
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*
|
||
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* <p>The underlying field's value is obtained as follows:
|
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*
|
||
|
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* <p>If the underlying field is a static field, the {@code obj} argument
|
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* is ignored; it may be null.
|
||
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*
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||
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* <p>Otherwise, the underlying field is an instance field. If the
|
||
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* specified {@code obj} argument is null, the method throws a
|
||
|
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* {@code NullPointerException}. If the specified object is not an
|
||
|
|
* instance of the class or interface declaring the underlying
|
||
|
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* field, the method throws an {@code IllegalArgumentException}.
|
||
|
|
*
|
||
|
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* <p>If this {@code Field} object is enforcing Java language access control, and
|
||
|
|
* the underlying field is inaccessible, the method throws an
|
||
|
|
* {@code IllegalAccessException}.
|
||
|
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* If the underlying field is static, the class that declared the
|
||
|
|
* field is initialized if it has not already been initialized.
|
||
|
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*
|
||
|
|
* <p>Otherwise, the value is retrieved from the underlying instance
|
||
|
|
* or static field. If the field has a primitive type, the value
|
||
|
|
* is wrapped in an object before being returned, otherwise it is
|
||
|
|
* returned as is.
|
||
|
|
*
|
||
|
|
* <p>If the field is hidden in the type of {@code obj},
|
||
|
|
* the field's value is obtained according to the preceding rules.
|
||
|
|
*
|
||
|
|
* @param obj object from which the represented field's value is
|
||
|
|
* to be extracted
|
||
|
|
* @return the value of the represented field in object
|
||
|
|
* {@code obj}; primitive values are wrapped in an appropriate
|
||
|
|
* object before being returned
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is inaccessible.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not an
|
||
|
|
* instance of the class or interface declaring the underlying
|
||
|
|
* field (or a subclass or implementor thereof).
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public Object get(Object obj)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return getFieldAccessor(obj).get(obj);
|
||
|
|
}
|
||
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|
||
|
|
/**
|
||
|
|
* Gets the value of a static or instance {@code boolean} field.
|
||
|
|
*
|
||
|
|
* @param obj the object to extract the {@code boolean} value
|
||
|
|
* from
|
||
|
|
* @return the value of the {@code boolean} field
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is inaccessible.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not
|
||
|
|
* an instance of the class or interface declaring the
|
||
|
|
* underlying field (or a subclass or implementor
|
||
|
|
* thereof), or if the field value cannot be
|
||
|
|
* converted to the type {@code boolean} by a
|
||
|
|
* widening conversion.
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
* @see Field#get
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public boolean getBoolean(Object obj)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return getFieldAccessor(obj).getBoolean(obj);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets the value of a static or instance {@code byte} field.
|
||
|
|
*
|
||
|
|
* @param obj the object to extract the {@code byte} value
|
||
|
|
* from
|
||
|
|
* @return the value of the {@code byte} field
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is inaccessible.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not
|
||
|
|
* an instance of the class or interface declaring the
|
||
|
|
* underlying field (or a subclass or implementor
|
||
|
|
* thereof), or if the field value cannot be
|
||
|
|
* converted to the type {@code byte} by a
|
||
|
|
* widening conversion.
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
* @see Field#get
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public byte getByte(Object obj)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return getFieldAccessor(obj).getByte(obj);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets the value of a static or instance field of type
|
||
|
|
* {@code char} or of another primitive type convertible to
|
||
|
|
* type {@code char} via a widening conversion.
|
||
|
|
*
|
||
|
|
* @param obj the object to extract the {@code char} value
|
||
|
|
* from
|
||
|
|
* @return the value of the field converted to type {@code char}
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is inaccessible.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not
|
||
|
|
* an instance of the class or interface declaring the
|
||
|
|
* underlying field (or a subclass or implementor
|
||
|
|
* thereof), or if the field value cannot be
|
||
|
|
* converted to the type {@code char} by a
|
||
|
|
* widening conversion.
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
* @see Field#get
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public char getChar(Object obj)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return getFieldAccessor(obj).getChar(obj);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets the value of a static or instance field of type
|
||
|
|
* {@code short} or of another primitive type convertible to
|
||
|
|
* type {@code short} via a widening conversion.
|
||
|
|
*
|
||
|
|
* @param obj the object to extract the {@code short} value
|
||
|
|
* from
|
||
|
|
* @return the value of the field converted to type {@code short}
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is inaccessible.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not
|
||
|
|
* an instance of the class or interface declaring the
|
||
|
|
* underlying field (or a subclass or implementor
|
||
|
|
* thereof), or if the field value cannot be
|
||
|
|
* converted to the type {@code short} by a
|
||
|
|
* widening conversion.
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
* @see Field#get
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public short getShort(Object obj)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return getFieldAccessor(obj).getShort(obj);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets the value of a static or instance field of type
|
||
|
|
* {@code int} or of another primitive type convertible to
|
||
|
|
* type {@code int} via a widening conversion.
|
||
|
|
*
|
||
|
|
* @param obj the object to extract the {@code int} value
|
||
|
|
* from
|
||
|
|
* @return the value of the field converted to type {@code int}
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is inaccessible.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not
|
||
|
|
* an instance of the class or interface declaring the
|
||
|
|
* underlying field (or a subclass or implementor
|
||
|
|
* thereof), or if the field value cannot be
|
||
|
|
* converted to the type {@code int} by a
|
||
|
|
* widening conversion.
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
* @see Field#get
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public int getInt(Object obj)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return getFieldAccessor(obj).getInt(obj);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets the value of a static or instance field of type
|
||
|
|
* {@code long} or of another primitive type convertible to
|
||
|
|
* type {@code long} via a widening conversion.
|
||
|
|
*
|
||
|
|
* @param obj the object to extract the {@code long} value
|
||
|
|
* from
|
||
|
|
* @return the value of the field converted to type {@code long}
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is inaccessible.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not
|
||
|
|
* an instance of the class or interface declaring the
|
||
|
|
* underlying field (or a subclass or implementor
|
||
|
|
* thereof), or if the field value cannot be
|
||
|
|
* converted to the type {@code long} by a
|
||
|
|
* widening conversion.
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
* @see Field#get
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public long getLong(Object obj)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return getFieldAccessor(obj).getLong(obj);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets the value of a static or instance field of type
|
||
|
|
* {@code float} or of another primitive type convertible to
|
||
|
|
* type {@code float} via a widening conversion.
|
||
|
|
*
|
||
|
|
* @param obj the object to extract the {@code float} value
|
||
|
|
* from
|
||
|
|
* @return the value of the field converted to type {@code float}
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is inaccessible.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not
|
||
|
|
* an instance of the class or interface declaring the
|
||
|
|
* underlying field (or a subclass or implementor
|
||
|
|
* thereof), or if the field value cannot be
|
||
|
|
* converted to the type {@code float} by a
|
||
|
|
* widening conversion.
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
* @see Field#get
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public float getFloat(Object obj)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return getFieldAccessor(obj).getFloat(obj);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Gets the value of a static or instance field of type
|
||
|
|
* {@code double} or of another primitive type convertible to
|
||
|
|
* type {@code double} via a widening conversion.
|
||
|
|
*
|
||
|
|
* @param obj the object to extract the {@code double} value
|
||
|
|
* from
|
||
|
|
* @return the value of the field converted to type {@code double}
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is inaccessible.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not
|
||
|
|
* an instance of the class or interface declaring the
|
||
|
|
* underlying field (or a subclass or implementor
|
||
|
|
* thereof), or if the field value cannot be
|
||
|
|
* converted to the type {@code double} by a
|
||
|
|
* widening conversion.
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
* @see Field#get
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public double getDouble(Object obj)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return getFieldAccessor(obj).getDouble(obj);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the field represented by this {@code Field} object on the
|
||
|
|
* specified object argument to the specified new value. The new
|
||
|
|
* value is automatically unwrapped if the underlying field has a
|
||
|
|
* primitive type.
|
||
|
|
*
|
||
|
|
* <p>The operation proceeds as follows:
|
||
|
|
*
|
||
|
|
* <p>If the underlying field is static, the {@code obj} argument is
|
||
|
|
* ignored; it may be null.
|
||
|
|
*
|
||
|
|
* <p>Otherwise the underlying field is an instance field. If the
|
||
|
|
* specified object argument is null, the method throws a
|
||
|
|
* {@code NullPointerException}. If the specified object argument is not
|
||
|
|
* an instance of the class or interface declaring the underlying
|
||
|
|
* field, the method throws an {@code IllegalArgumentException}.
|
||
|
|
*
|
||
|
|
* <p>If this {@code Field} object is enforcing Java language access control, and
|
||
|
|
* the underlying field is inaccessible, the method throws an
|
||
|
|
* {@code IllegalAccessException}.
|
||
|
|
*
|
||
|
|
* <p>If the underlying field is final, the method throws an
|
||
|
|
* {@code IllegalAccessException} unless {@code setAccessible(true)}
|
||
|
|
* has succeeded for this {@code Field} object
|
||
|
|
* and the field is non-static. Setting a final field in this way
|
||
|
|
* is meaningful only during deserialization or reconstruction of
|
||
|
|
* instances of classes with blank final fields, before they are
|
||
|
|
* made available for access by other parts of a program. Use in
|
||
|
|
* any other context may have unpredictable effects, including cases
|
||
|
|
* in which other parts of a program continue to use the original
|
||
|
|
* value of this field.
|
||
|
|
*
|
||
|
|
* <p>If the underlying field is of a primitive type, an unwrapping
|
||
|
|
* conversion is attempted to convert the new value to a value of
|
||
|
|
* a primitive type. If this attempt fails, the method throws an
|
||
|
|
* {@code IllegalArgumentException}.
|
||
|
|
*
|
||
|
|
* <p>If, after possible unwrapping, the new value cannot be
|
||
|
|
* converted to the type of the underlying field by an identity or
|
||
|
|
* widening conversion, the method throws an
|
||
|
|
* {@code IllegalArgumentException}.
|
||
|
|
*
|
||
|
|
* <p>If the underlying field is static, the class that declared the
|
||
|
|
* field is initialized if it has not already been initialized.
|
||
|
|
*
|
||
|
|
* <p>The field is set to the possibly unwrapped and widened new value.
|
||
|
|
*
|
||
|
|
* <p>If the field is hidden in the type of {@code obj},
|
||
|
|
* the field's value is set according to the preceding rules.
|
||
|
|
*
|
||
|
|
* @param obj the object whose field should be modified
|
||
|
|
* @param value the new value for the field of {@code obj}
|
||
|
|
* being modified
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is either inaccessible or final.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not an
|
||
|
|
* instance of the class or interface declaring the underlying
|
||
|
|
* field (or a subclass or implementor thereof),
|
||
|
|
* or if an unwrapping conversion fails.
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public void set(Object obj, Object value)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
getFieldAccessor(obj).set(obj, value);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the value of a field as a {@code boolean} on the specified object.
|
||
|
|
* This method is equivalent to
|
||
|
|
* {@code set(obj, zObj)},
|
||
|
|
* where {@code zObj} is a {@code Boolean} object and
|
||
|
|
* {@code zObj.booleanValue() == z}.
|
||
|
|
*
|
||
|
|
* @param obj the object whose field should be modified
|
||
|
|
* @param z the new value for the field of {@code obj}
|
||
|
|
* being modified
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is either inaccessible or final.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not an
|
||
|
|
* instance of the class or interface declaring the underlying
|
||
|
|
* field (or a subclass or implementor thereof),
|
||
|
|
* or if an unwrapping conversion fails.
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
* @see Field#set
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public void setBoolean(Object obj, boolean z)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
getFieldAccessor(obj).setBoolean(obj, z);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the value of a field as a {@code byte} on the specified object.
|
||
|
|
* This method is equivalent to
|
||
|
|
* {@code set(obj, bObj)},
|
||
|
|
* where {@code bObj} is a {@code Byte} object and
|
||
|
|
* {@code bObj.byteValue() == b}.
|
||
|
|
*
|
||
|
|
* @param obj the object whose field should be modified
|
||
|
|
* @param b the new value for the field of {@code obj}
|
||
|
|
* being modified
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is either inaccessible or final.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not an
|
||
|
|
* instance of the class or interface declaring the underlying
|
||
|
|
* field (or a subclass or implementor thereof),
|
||
|
|
* or if an unwrapping conversion fails.
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
* @see Field#set
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public void setByte(Object obj, byte b)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
getFieldAccessor(obj).setByte(obj, b);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the value of a field as a {@code char} on the specified object.
|
||
|
|
* This method is equivalent to
|
||
|
|
* {@code set(obj, cObj)},
|
||
|
|
* where {@code cObj} is a {@code Character} object and
|
||
|
|
* {@code cObj.charValue() == c}.
|
||
|
|
*
|
||
|
|
* @param obj the object whose field should be modified
|
||
|
|
* @param c the new value for the field of {@code obj}
|
||
|
|
* being modified
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is either inaccessible or final.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not an
|
||
|
|
* instance of the class or interface declaring the underlying
|
||
|
|
* field (or a subclass or implementor thereof),
|
||
|
|
* or if an unwrapping conversion fails.
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
* @see Field#set
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public void setChar(Object obj, char c)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
getFieldAccessor(obj).setChar(obj, c);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the value of a field as a {@code short} on the specified object.
|
||
|
|
* This method is equivalent to
|
||
|
|
* {@code set(obj, sObj)},
|
||
|
|
* where {@code sObj} is a {@code Short} object and
|
||
|
|
* {@code sObj.shortValue() == s}.
|
||
|
|
*
|
||
|
|
* @param obj the object whose field should be modified
|
||
|
|
* @param s the new value for the field of {@code obj}
|
||
|
|
* being modified
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is either inaccessible or final.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not an
|
||
|
|
* instance of the class or interface declaring the underlying
|
||
|
|
* field (or a subclass or implementor thereof),
|
||
|
|
* or if an unwrapping conversion fails.
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
* @see Field#set
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public void setShort(Object obj, short s)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
getFieldAccessor(obj).setShort(obj, s);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the value of a field as an {@code int} on the specified object.
|
||
|
|
* This method is equivalent to
|
||
|
|
* {@code set(obj, iObj)},
|
||
|
|
* where {@code iObj} is a {@code Integer} object and
|
||
|
|
* {@code iObj.intValue() == i}.
|
||
|
|
*
|
||
|
|
* @param obj the object whose field should be modified
|
||
|
|
* @param i the new value for the field of {@code obj}
|
||
|
|
* being modified
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is either inaccessible or final.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not an
|
||
|
|
* instance of the class or interface declaring the underlying
|
||
|
|
* field (or a subclass or implementor thereof),
|
||
|
|
* or if an unwrapping conversion fails.
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
* @see Field#set
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public void setInt(Object obj, int i)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
getFieldAccessor(obj).setInt(obj, i);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the value of a field as a {@code long} on the specified object.
|
||
|
|
* This method is equivalent to
|
||
|
|
* {@code set(obj, lObj)},
|
||
|
|
* where {@code lObj} is a {@code Long} object and
|
||
|
|
* {@code lObj.longValue() == l}.
|
||
|
|
*
|
||
|
|
* @param obj the object whose field should be modified
|
||
|
|
* @param l the new value for the field of {@code obj}
|
||
|
|
* being modified
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is either inaccessible or final.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not an
|
||
|
|
* instance of the class or interface declaring the underlying
|
||
|
|
* field (or a subclass or implementor thereof),
|
||
|
|
* or if an unwrapping conversion fails.
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
* @see Field#set
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public void setLong(Object obj, long l)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
getFieldAccessor(obj).setLong(obj, l);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the value of a field as a {@code float} on the specified object.
|
||
|
|
* This method is equivalent to
|
||
|
|
* {@code set(obj, fObj)},
|
||
|
|
* where {@code fObj} is a {@code Float} object and
|
||
|
|
* {@code fObj.floatValue() == f}.
|
||
|
|
*
|
||
|
|
* @param obj the object whose field should be modified
|
||
|
|
* @param f the new value for the field of {@code obj}
|
||
|
|
* being modified
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is either inaccessible or final.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not an
|
||
|
|
* instance of the class or interface declaring the underlying
|
||
|
|
* field (or a subclass or implementor thereof),
|
||
|
|
* or if an unwrapping conversion fails.
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
* @see Field#set
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public void setFloat(Object obj, float f)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
getFieldAccessor(obj).setFloat(obj, f);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the value of a field as a {@code double} on the specified object.
|
||
|
|
* This method is equivalent to
|
||
|
|
* {@code set(obj, dObj)},
|
||
|
|
* where {@code dObj} is a {@code Double} object and
|
||
|
|
* {@code dObj.doubleValue() == d}.
|
||
|
|
*
|
||
|
|
* @param obj the object whose field should be modified
|
||
|
|
* @param d the new value for the field of {@code obj}
|
||
|
|
* being modified
|
||
|
|
*
|
||
|
|
* @exception IllegalAccessException if this {@code Field} object
|
||
|
|
* is enforcing Java language access control and the underlying
|
||
|
|
* field is either inaccessible or final.
|
||
|
|
* @exception IllegalArgumentException if the specified object is not an
|
||
|
|
* instance of the class or interface declaring the underlying
|
||
|
|
* field (or a subclass or implementor thereof),
|
||
|
|
* or if an unwrapping conversion fails.
|
||
|
|
* @exception NullPointerException if the specified object is null
|
||
|
|
* and the field is an instance field.
|
||
|
|
* @exception ExceptionInInitializerError if the initialization provoked
|
||
|
|
* by this method fails.
|
||
|
|
* @see Field#set
|
||
|
|
*/
|
||
|
|
@CallerSensitive
|
||
|
|
public void setDouble(Object obj, double d)
|
||
|
|
throws IllegalArgumentException, IllegalAccessException
|
||
|
|
{
|
||
|
|
if (!override) {
|
||
|
|
if (!Reflection.quickCheckMemberAccess(clazz, modifiers)) {
|
||
|
|
checkAccess(Reflection.getCallerClass(), clazz, obj, modifiers);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
getFieldAccessor(obj).setDouble(obj, d);
|
||
|
|
}
|
||
|
|
|
||
|
|
// security check is done before calling this method
|
||
|
|
private FieldAccessor getFieldAccessor(Object obj)
|
||
|
|
throws IllegalAccessException
|
||
|
|
{
|
||
|
|
boolean ov = override;
|
||
|
|
FieldAccessor a = (ov) ? overrideFieldAccessor : fieldAccessor;
|
||
|
|
return (a != null) ? a : acquireFieldAccessor(ov);
|
||
|
|
}
|
||
|
|
|
||
|
|
// NOTE that there is no synchronization used here. It is correct
|
||
|
|
// (though not efficient) to generate more than one FieldAccessor
|
||
|
|
// for a given Field. However, avoiding synchronization will
|
||
|
|
// probably make the implementation more scalable.
|
||
|
|
private FieldAccessor acquireFieldAccessor(boolean overrideFinalCheck) {
|
||
|
|
// First check to see if one has been created yet, and take it
|
||
|
|
// if so
|
||
|
|
FieldAccessor tmp = null;
|
||
|
|
if (root != null) tmp = root.getFieldAccessor(overrideFinalCheck);
|
||
|
|
if (tmp != null) {
|
||
|
|
if (overrideFinalCheck)
|
||
|
|
overrideFieldAccessor = tmp;
|
||
|
|
else
|
||
|
|
fieldAccessor = tmp;
|
||
|
|
} else {
|
||
|
|
// Otherwise fabricate one and propagate it up to the root
|
||
|
|
tmp = reflectionFactory.newFieldAccessor(this, overrideFinalCheck);
|
||
|
|
setFieldAccessor(tmp, overrideFinalCheck);
|
||
|
|
}
|
||
|
|
|
||
|
|
return tmp;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Returns FieldAccessor for this Field object, not looking up
|
||
|
|
// the chain to the root
|
||
|
|
private FieldAccessor getFieldAccessor(boolean overrideFinalCheck) {
|
||
|
|
return (overrideFinalCheck)? overrideFieldAccessor : fieldAccessor;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Sets the FieldAccessor for this Field object and
|
||
|
|
// (recursively) its root
|
||
|
|
private void setFieldAccessor(FieldAccessor accessor, boolean overrideFinalCheck) {
|
||
|
|
if (overrideFinalCheck)
|
||
|
|
overrideFieldAccessor = accessor;
|
||
|
|
else
|
||
|
|
fieldAccessor = accessor;
|
||
|
|
// Propagate up
|
||
|
|
if (root != null) {
|
||
|
|
root.setFieldAccessor(accessor, overrideFinalCheck);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Utility routine to paper over array type names
|
||
|
|
*/
|
||
|
|
static String getTypeName(Class<?> type) {
|
||
|
|
if (type.isArray()) {
|
||
|
|
try {
|
||
|
|
Class<?> cl = type;
|
||
|
|
int dimensions = 0;
|
||
|
|
while (cl.isArray()) {
|
||
|
|
dimensions++;
|
||
|
|
cl = cl.getComponentType();
|
||
|
|
}
|
||
|
|
StringBuffer sb = new StringBuffer();
|
||
|
|
sb.append(cl.getName());
|
||
|
|
for (int i = 0; i < dimensions; i++) {
|
||
|
|
sb.append("[]");
|
||
|
|
}
|
||
|
|
return sb.toString();
|
||
|
|
} catch (Throwable e) { /*FALLTHRU*/ }
|
||
|
|
}
|
||
|
|
return type.getName();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @throws NullPointerException {@inheritDoc}
|
||
|
|
* @since 1.5
|
||
|
|
*/
|
||
|
|
public <T extends Annotation> T getAnnotation(Class<T> annotationClass) {
|
||
|
|
if (annotationClass == null)
|
||
|
|
throw new NullPointerException();
|
||
|
|
|
||
|
|
return (T) declaredAnnotations().get(annotationClass);
|
||
|
|
}
|
||
|
|
|
||
|
|
private static final Annotation[] EMPTY_ANNOTATION_ARRAY=new Annotation[0];
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @since 1.5
|
||
|
|
*/
|
||
|
|
public Annotation[] getDeclaredAnnotations() {
|
||
|
|
return declaredAnnotations().values().toArray(EMPTY_ANNOTATION_ARRAY);
|
||
|
|
}
|
||
|
|
|
||
|
|
private transient Map<Class<? extends Annotation>, Annotation> declaredAnnotations;
|
||
|
|
|
||
|
|
private synchronized Map<Class<? extends Annotation>, Annotation> declaredAnnotations() {
|
||
|
|
if (declaredAnnotations == null) {
|
||
|
|
declaredAnnotations = getDeclaredAnnotationsImpl();
|
||
|
|
}
|
||
|
|
return declaredAnnotations;
|
||
|
|
}
|
||
|
|
|
||
|
|
private native Map<Class<? extends Annotation>, Annotation> getDeclaredAnnotationsImpl();
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||
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}
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