/**
* 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.webapp.taglib;
import javax.el.ELException;
import javax.el.MethodExpression;
import javax.faces.component.StateHolder;
import javax.faces.context.FacesContext;
import javax.faces.el.EvaluationException;
import javax.faces.el.MethodBinding;
import javax.faces.el.MethodNotFoundException;
/**
* Maps {@link MethodExpression} to {@link MethodBinding}
* @author Maksim Kaszynski
*
*/
@SuppressWarnings("deprecation")
public class MethodBindingMethodExpressionAdaptor extends MethodBinding implements StateHolder{
private MethodExpression expression;
private boolean tranzient;
/* (non-Javadoc)
* @see javax.faces.el.MethodBinding#getType(javax.faces.context.FacesContext)
*/
public MethodBindingMethodExpressionAdaptor() {
// TODO Auto-generated constructor stub
}
public MethodBindingMethodExpressionAdaptor(MethodExpression expression) {
super();
this.expression = expression;
}
@Override
public Class<?> getType(FacesContext context) throws MethodNotFoundException {
try {
return expression.getMethodInfo(context.getELContext()).getReturnType();
} catch (javax.el.MethodNotFoundException e) {
throw new MethodNotFoundException(e);
}
}
/* (non-Javadoc)
* @see javax.faces.el.MethodBinding#invoke(javax.faces.context.FacesContext, java.lang.Object[])
*/
@Override
public Object invoke(FacesContext context, Object[] params)
throws EvaluationException, MethodNotFoundException {
try {
return expression.invoke(context.getELContext(), params);
} catch (javax.el.MethodNotFoundException e) {
throw new MethodNotFoundException(e);
} catch (ELException e) {
throw new EvaluationException(e);
}
}
public boolean isTransient() {
return tranzient;
}
public void restoreState(FacesContext context, Object state) {
expression = (MethodExpression) state;
}
public Object saveState(FacesContext context) {
return expression;
}
public void setTransient(boolean newTransientValue) {
tranzient = newTransientValue;
}
@Override
public String getExpressionString() {
return expression.getExpressionString();
}
}