/**
* License Agreement.
*
* Rich Faces - Natural Ajax for Java Server Faces (JSF)
*
* Copyright (C) 2007 Exadel, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.richfaces.component;
import javax.el.ELException;
import javax.el.ValueExpression;
import javax.faces.component.StateHolder;
import javax.faces.context.FacesContext;
import javax.faces.el.EvaluationException;
import javax.faces.el.PropertyNotFoundException;
import javax.faces.el.ValueBinding;
/**
* @author Maksim Kaszynski
*/
@SuppressWarnings("deprecation")
public class ValueBindingValueExpressionAdaptor extends ValueBinding implements StateHolder {
private ValueExpression expression;
private boolean tranzient;
public ValueBindingValueExpressionAdaptor() {
// TODO Auto-generated constructor stub
}
public ValueBindingValueExpressionAdaptor(ValueExpression expression) {
super();
this.expression = expression;
}
/*
* (non-Javadoc)
*
* @see javax.faces.el.ValueBinding#getType(javax.faces.context.FacesContext)
*/
@Override
public Class<?> getType(FacesContext context) throws EvaluationException {
try {
return expression.getType(context.getELContext());
} catch (javax.el.PropertyNotFoundException e) {
throw new PropertyNotFoundException(e);
} catch (ELException e) {
throw new EvaluationException(e);
}
}
/*
* (non-Javadoc)
*
* @see javax.faces.el.ValueBinding#getValue(javax.faces.context.FacesContext)
*/
@Override
public Object getValue(FacesContext context) throws EvaluationException {
try {
return expression.getValue(context.getELContext());
} catch (javax.el.PropertyNotFoundException e) {
throw new PropertyNotFoundException(e);
} catch (ELException e) {
throw new EvaluationException(e);
}
}
/*
* (non-Javadoc)
*
* @see javax.faces.el.ValueBinding#isReadOnly(javax.faces.context.FacesContext)
*/
@Override
public boolean isReadOnly(FacesContext context) throws EvaluationException {
try {
return expression.isReadOnly(context.getELContext());
} catch (javax.el.PropertyNotFoundException e) {
throw new PropertyNotFoundException(e);
} catch (ELException e) {
throw new EvaluationException(e);
}
}
/*
* (non-Javadoc)
*
* @see javax.faces.el.ValueBinding#setValue(javax.faces.context.FacesContext, java.lang.Object)
*/
@Override
public void setValue(FacesContext context, Object value) throws EvaluationException {
try {
expression.setValue(context.getELContext(), value);
} catch (javax.el.PropertyNotFoundException e) {
throw new PropertyNotFoundException(e);
} catch (ELException e) {
throw new EvaluationException(e);
}
}
public boolean isTransient() {
return tranzient;
}
public void restoreState(FacesContext context, Object state) {
expression = (ValueExpression) state;
}
public Object saveState(FacesContext context) {
return expression;
}
public void setTransient(boolean newTransientValue) {
tranzient = newTransientValue;
}
public ValueExpression getExpression() {
return expression;
}
public void setExpression(ValueExpression expression) {
this.expression = expression;
}
}