104 lines
2.8 KiB
C#
104 lines
2.8 KiB
C#
//
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// Copyright 2006 Novell, Inc (http://www.novell.com)
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//
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// Authors:
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// Miguel de Icaza <miguel@novell.com>
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.Collections.Generic;
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using System.Text;
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namespace System.ComponentModel
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{
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[AttributeUsageAttribute (AttributeTargets.Property)]
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public sealed class DataObjectFieldAttribute : Attribute
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{
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bool primary_key, is_identity, is_nullable;
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int length = -1;
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public DataObjectFieldAttribute (bool primaryKey)
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{
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primary_key = primaryKey;
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}
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public DataObjectFieldAttribute (bool primaryKey, bool isIdentity)
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{
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primary_key = primaryKey;
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is_identity = isIdentity;
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}
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public DataObjectFieldAttribute (bool primaryKey, bool isIdentity, bool isNullable)
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{
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primary_key = primaryKey;
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is_identity = isIdentity;
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is_nullable = isNullable;
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}
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public DataObjectFieldAttribute (bool primaryKey, bool isIdentity, bool isNullable, int length)
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{
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primary_key = primaryKey;
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is_identity = isIdentity;
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is_nullable = isNullable;
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this.length = length;
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}
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public bool IsIdentity {
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get { return is_identity; }
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}
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public bool IsNullable {
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get { return is_nullable; }
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}
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public int Length {
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get { return length; }
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}
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public bool PrimaryKey {
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get { return primary_key; }
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}
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public override bool Equals (object obj)
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{
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DataObjectFieldAttribute other = obj as DataObjectFieldAttribute;
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if (other == null)
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return false;
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return other.primary_key == primary_key &&
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other.is_identity == is_identity &&
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other.is_nullable == is_nullable &&
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other.length == length;
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}
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public override int GetHashCode ()
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{
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return ((primary_key ? 1 : 0) |
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(is_identity ? 2 : 0) |
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(is_nullable ? 4 : 0)) ^
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length;
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}
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}
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}
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