org.codehaus.plexus.evaluator
Class DefaultExpressionEvaluator

java.lang.Object
  org.codehaus.plexus.evaluator.DefaultExpressionEvaluator

All Implemented Interfaces:

ExpressionEvaluator

public class DefaultExpressionEvaluator

extends java.lang.Object

implements ExpressionEvaluator

DefaultExpressionEvaluator

Version:

$Id: DefaultExpressionEvaluator.java 4589 2006-11-06 19:28:29Z joakime $

Author:

Joakim Erdfelt

Field Summary

Fields inherited from interface org.codehaus.plexus.evaluator.ExpressionEvaluator

ROLE

Constructor Summary

DefaultExpressionEvaluator()

Method Summary

void	addExpressionSource(ExpressionSource source) Add a source for expression resolution.
java.lang.String	expand(java.lang.String str) Evaluate a string, and expand expressions as needed.
java.util.List	getExpressionSourceList() Get the List of expression sources.
boolean	removeExpressionSource(ExpressionSource source) Remove a specific expression source.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultExpressionEvaluator

public DefaultExpressionEvaluator()

Method Detail

addExpressionSource

public void addExpressionSource(ExpressionSource source)

Description copied from interface: ExpressionEvaluator

Add a source for expression resolution.

Specified by:

addExpressionSource in interface ExpressionEvaluator

Parameters:

source - the source to add.

expand

public java.lang.String expand(java.lang.String str)
                        throws EvaluatorException

Description copied from interface: ExpressionEvaluator

Evaluate a string, and expand expressions as needed.

Specified by:

expand in interface ExpressionEvaluator

Parameters:

str - the expression

Returns:

the value of the expression

Throws:

EvaluatorException - if a problem occurs whilst evaluating

getExpressionSourceList

public java.util.List getExpressionSourceList()

Description copied from interface: ExpressionEvaluator

Get the List of expression sources.

Specified by:

getExpressionSourceList in interface ExpressionEvaluator

Returns:

the list of expression sources.

removeExpressionSource

public boolean removeExpressionSource(ExpressionSource source)

Description copied from interface: ExpressionEvaluator

Remove a specific expression source.

Specified by:

removeExpressionSource in interface ExpressionEvaluator

Parameters:

source - the source to remove.

Returns:

true if expression source was removed.