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java.dyn
Class ConstantCallSite

java.lang.Object
  java.dyn.CallSite
      java.dyn.ConstantCallSite

All Implemented Interfaces:

MethodHandleProvider

public class ConstantCallSite
extends CallSite

A ConstantCallSite is a CallSite whose target is permanent, and can never be changed. The only way to relink an invokedynamic instruction bound to a ConstantCallSite is to invalidate the instruction as a whole.

Constructor and Description

ConstantCallSite(MethodHandle target)
Create a call site with a permanent target.

Method Summary

Modifier and Type	Method and Description
void	setTarget(MethodHandle ignore) Throw an IllegalArgumentException, because this kind of call site cannot change its target.

Methods inherited from class java.dyn.CallSite

asMethodHandle, asMethodHandle, callerClass, dynamicInvoker, getTarget, initialTarget, initialTarget, name, toString, type

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ConstantCallSite

public ConstantCallSite(MethodHandle target)

Create a call site with a permanent target.

Method Detail

setTarget

public final void setTarget(MethodHandle ignore)

Throw an IllegalArgumentException, because this kind of call site cannot change its target.

Overrides:

setTarget in class CallSite

Parameters:

ignore - the new target