Microsoft SDK for Java

Delegate

When applied at the class level, the Delegate attribute specifies that a class is a delegate type and will be used for method invocations.

When applied to a method, the Delegate attribute indicates that the method is an invocation method.

Attribute Level Generated By
Class or method The delegate keyword

Delegate_attribute {
  u2 attribute_name_index;
  u4 attribute_length;
  u2 signature; // Present only at the class level.
}

Attribute Elements

attribute_name_index

This value must be a valid index into the constant_pool table. The constant_pool entry at that index must be the CONSTANT_Utf8_info structure representing the string "Delegate".

attribute_length

This value indicates the length of this attribute, excluding the initial six bytes, and may be 0 (zero) (at method level) or two (at class level).

signature

When present, this optional value must be a valid index into the constant_pool table. The constant_pool entry at that index must be the CONSTANT_Utf8_info structure representing the signature of the invoke method.

Remarks

A method marked with the delegate attribute will not be JIT-compiled or interpreted by the Microsoft VM, but will instead use a special stub.

See Also

Delegate Class
MulticastDelegate Class
MulticastDelegate Attribute

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