Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/class/Mono.Data.Sqlite/Mono.Data.Sqlite_2.0/SQLiteFunctionAttribute.cs

@@ -0,0 +1,62 @@
+/********************************************************
+ * ADO.NET 2.0 Data Provider for SQLite Version 3.X
+ * Written by Robert Simpson (robert@blackcastlesoft.com)
+ * 
+ * Released to the public domain, use at your own risk!
+ ********************************************************/
+
+namespace Mono.Data.Sqlite
+{
+  using System;
+  using System.Runtime.InteropServices;
+
+  /// <summary>
+  /// A simple custom attribute to enable us to easily find user-defined functions in
+  /// the loaded assemblies and initialize them in SQLite as connections are made.
+  /// </summary>
+  [AttributeUsage(AttributeTargets.Class, Inherited = false, AllowMultiple = true)]
+  public sealed class SqliteFunctionAttribute : Attribute
+  {
+    private string       _name;
+    private int          _arguments;
+    private FunctionType _functionType;
+    internal Type        _instanceType;
+
+    /// <summary>
+    /// Default constructor, initializes the internal variables for the function.
+    /// </summary>
+    public SqliteFunctionAttribute()
+    {
+      Name = "";
+      Arguments = -1;
+      FuncType = FunctionType.Scalar;
+    }
+
+    /// <summary>
+    /// The function's name as it will be used in SQLite command text.
+    /// </summary>
+    public string Name
+    {
+      get { return _name; }
+      set { _name = value; }
+    }
+
+    /// <summary>
+    /// The number of arguments this function expects.  -1 if the number of arguments is variable.
+    /// </summary>
+    public int Arguments
+    {
+      get { return _arguments; }
+      set { _arguments = value; }
+    }
+
+    /// <summary>
+    /// The type of function this implementation will be.
+    /// </summary>
+    public FunctionType FuncType
+    {
+      get { return _functionType; }
+      set { _functionType = value; }
+    }
+  }
+}