Package com.scriptbasic.hooks

Class NullHook

java.lang.Object

com.scriptbasic.hooks.NullHook

All Implemented Interfaces:

InterpreterHook

public class NullHook
extends java.lang.Object
implements InterpreterHook

The simplest implementation of the InterfaceHook interface. This implements each of the methods of the interface, each doing nothing.

This hook is used to chain into the hook chain first so that hook classes need not check if there is a next hook object in the chain.

Author:

Peter Verhas date Aug 15, 2012

Constructor Summary

Constructors

Constructor	Description
NullHook()

Method Summary

Modifier and Type	Method	Description
void	setInterpreter(Interpreter interpreter)	During registration the interpreter calls this method to make the interpreter accessible for the hook objects.
void	setNext(InterpreterHook next)	When a hook is registered the registering process calls this method and passes the next element in the hook chain.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.scriptbasic.spi.InterpreterHook

afterCallJavaFunction, afterExecute, afterExecute, afterPop, afterPush, beforeCallJavaFunction, beforeExecute, beforeExecute, beforePop, beforePush, beforeRegisteringJavaMethod, beforeSubroutineCall, init, setReturnValue, variableRead

Constructor Details

NullHook

public NullHook()

Method Details

setNext

public void setNext(InterpreterHook next)

Description copied from interface: InterpreterHook

When a hook is registered the registering process calls this method and passes the next element in the hook chain. The hook object should remember this object and call the appropriate methods when that is called not to break the chain.

Specified by:

setNext in interface InterpreterHook

Parameters:

next - the next element in the chain.

setInterpreter

public void setInterpreter(Interpreter interpreter)

Description copied from interface: InterpreterHook

During registration the interpreter calls this method to make the interpreter accessible for the hook objects.

Specified by:

setInterpreter in interface InterpreterHook

Parameters:

interpreter - parameter