de.intarsys.tools.expression

Class CacheResolver

java.lang.Object

de.intarsys.tools.expression.CacheResolver

All Implemented Interfaces:

IStringEvaluator

public class CacheResolver
extends Object
implements IStringEvaluator

Cache previous evaluation results. This is very useful if we evaluate a template for a series of inputs where the template contains dynamic expressions like "system.millis" that should stay constant for the evaluation series.

Constructor Summary

Constructors

Constructor and Description
CacheResolver(IStringEvaluator evaluator)

Method Summary

Methods

Modifier and Type	Method and Description
void	clear()
Object	evaluate(String expression, IArgs args) Evaluate an expression according to the syntax used by the implementor and return the result.

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheResolver

public CacheResolver(IStringEvaluator evaluator)

Method Detail

clear

public void clear()

evaluate

public Object evaluate(String expression,
              IArgs args)
                throws EvaluationException

Description copied from interface: IStringEvaluator

Evaluate an expression according to the syntax used by the implementor and return the result.

Specified by:

evaluate in interface IStringEvaluator

Parameters:

expression - The expression to evaluate.

Returns:

The result object.

Throws:

EvaluationException - If we encounter a compile or runtime error.