com.codemesh.terp.eval.executors
Class IndexOperatorSetter

java.lang.Object
  com.codemesh.terp.api.Executor.AbstractExecutor<Lvalue>
      com.codemesh.terp.eval.executors.IndexOperatorSetter

All Implemented Interfaces:

Executor<Lvalue>

public class IndexOperatorSetter
extends Executor.AbstractExecutor<Lvalue>

An executor for setting of indexed properties.

Nested Class Summary

static class

IndexOperatorSetter.L

Nested classes/interfaces inherited from interface com.codemesh.terp.api.Executor

Executor.AbstractExecutor<T>, Executor.ForMethod

Constructor Summary

IndexOperatorSetter()

Method Summary

Lvalue	execute(java.util.List<java.lang.Object> args, TerpEvaluator eval, TerpContext ctx) Performs the executor's action on the given arguments in the given context.
boolean	matches(java.util.List<java.lang.Object> args) Returns true if the executor applies to the given arguments.

Methods inherited from class com.codemesh.terp.api.Executor.AbstractExecutor

execute

Methods inherited from class java.lang.Object

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

Constructor Detail

IndexOperatorSetter

public IndexOperatorSetter()

Method Detail

matches

public boolean matches(java.util.List<java.lang.Object> args)

Returns true if the executor applies to the given arguments. Typically, your custom executor will implement this method to check for the proper number of arguments and the proper argument types.

Parameters:

args - the arguments passed to the executor.

Returns:

true if the executor knows how to handle the given arguments, false otherwise.

execute

public Lvalue execute(java.util.List<java.lang.Object> args,
                      TerpEvaluator eval,
                      TerpContext ctx)

Performs the executor's action on the given arguments in the given context. Typically, your custom executor will implement this method to provide its core functionality.

Parameters:

args - the arguments.

eval - the evaluator to use. Can frequently be null.

ctx - the context in which the execution occurs. Can frequently be null.

Returns:

the execution result.