de.intarsys.tools.expression
Class TaggedStringEvaluator

java.lang.Object
  de.intarsys.tools.expression.TaggedStringEvaluator

All Implemented Interfaces:

IStringEvaluator

public class TaggedStringEvaluator
extends Object
implements IStringEvaluator

An IStringEvaluator for string templates. The evaluator handles strings of the form
[ chars | "${" chars "}" ]* , literally copying all chars outside the "${ }" tags and expanding all tagged content using the supplied IStringEvaluator.

Constructor Summary

TaggedStringEvaluator(IStringEvaluator resolver)

TaggedStringEvaluator(IStringEvaluator resolver, boolean escape)

Method Summary

Object	evaluate(String expression, IArgs args) Evaluate an expression according to the syntax used by the implementor and return the result.
IStringEvaluator	getEvaluator()
boolean	isEscape()
boolean	isSwallowExceptions()
void	setEscape(boolean escape)
void	setSwallowExceptions(boolean swallowExceptions)

Methods inherited from class java.lang.Object

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

Constructor Detail

TaggedStringEvaluator

public TaggedStringEvaluator(IStringEvaluator resolver)

TaggedStringEvaluator

public TaggedStringEvaluator(IStringEvaluator resolver,
                             boolean escape)

Method Detail

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.

getEvaluator

public IStringEvaluator getEvaluator()

isEscape

public boolean isEscape()

isSwallowExceptions

public boolean isSwallowExceptions()

setEscape

public void setEscape(boolean escape)

setSwallowExceptions

public void setSwallowExceptions(boolean swallowExceptions)