org.apache.myfaces.view.facelets.el
Class VariableMapperWrapper

java.lang.Object
  javax.el.VariableMapper
      org.apache.myfaces.view.facelets.el.VariableMapperBase
          org.apache.myfaces.view.facelets.el.VariableMapperWrapper

All Implemented Interfaces:

FacesWrapper<javax.el.VariableMapper>

public final class VariableMapperWrapper
extends VariableMapperBase
implements FacesWrapper<javax.el.VariableMapper>

Utility class for wrapping another VariableMapper with a new context, represented by a Map. Modifications occur to the Map instance, but resolve against the wrapped VariableMapper if the Map doesn't contain the ValueExpression requested.

Version:

$Id: VariableMapperWrapper.java,v 1.7 2008/07/13 19:01:43 rlubke Exp $

Author:

Jacob Hookom

Field Summary

boolean	_trackResolveVariables
boolean	_variableResolved

Constructor Summary

VariableMapperWrapper(javax.el.VariableMapper orig)

Method Summary

void	afterConstructELExpression() Cleanup all initialization done.
void	beforeConstructELExpression() Indicates an expression will be resolved, so preparations should be done to detect if a contextual variable has been resolved.
javax.el.VariableMapper	getWrapped()
boolean	isAnyFaceletsVariableResolved() Check if a variable has been resolved by this variable mapper or any parent "facelets contextual" variable mapper.
javax.el.ValueExpression	resolveVariable(String variable) First tries to resolve agains the inner Map, then the wrapped ValueExpression.
javax.el.ValueExpression	setVariable(String variable, javax.el.ValueExpression expression) Set the ValueExpression on the inner Map instance.

Methods inherited from class java.lang.Object

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

Field Detail

_trackResolveVariables

public boolean _trackResolveVariables

_variableResolved

public boolean _variableResolved

Constructor Detail

VariableMapperWrapper

public VariableMapperWrapper(javax.el.VariableMapper orig)

Method Detail

resolveVariable

public javax.el.ValueExpression resolveVariable(String variable)

First tries to resolve agains the inner Map, then the wrapped ValueExpression.

Specified by:

resolveVariable in class javax.el.VariableMapper

See Also:

VariableMapper.resolveVariable(java.lang.String)

setVariable

public javax.el.ValueExpression setVariable(String variable,
                                            javax.el.ValueExpression expression)

Set the ValueExpression on the inner Map instance.

Specified by:

setVariable in class javax.el.VariableMapper

See Also:

VariableMapper.setVariable(java.lang.String, javax.el.ValueExpression)

isAnyFaceletsVariableResolved

public boolean isAnyFaceletsVariableResolved()

Description copied from class: VariableMapperBase

Check if a variable has been resolved by this variable mapper or any parent "facelets contextual" variable mapper.

Specified by:

isAnyFaceletsVariableResolved in class VariableMapperBase

Returns:

getWrapped

public javax.el.VariableMapper getWrapped()

Specified by:

getWrapped in interface FacesWrapper<javax.el.VariableMapper>

beforeConstructELExpression

public void beforeConstructELExpression()

Description copied from class: VariableMapperBase

Indicates an expression will be resolved, so preparations should be done to detect if a contextual variable has been resolved.

Specified by:

beforeConstructELExpression in class VariableMapperBase

afterConstructELExpression

public void afterConstructELExpression()

Description copied from class: VariableMapperBase

Cleanup all initialization done.

Specified by:

afterConstructELExpression in class VariableMapperBase