/*
* Copyright 2006 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jboss.seam.ui.util.cdk;
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;
/**
* Converts a MethodExpression to a MethodBinding.
* See JSF 1.2 spec section 5.8.4
*
* @author Stan Silvert
* @author Pete Muir
*/
@Deprecated
public class MethodExpressionToMethodBinding extends MethodBinding implements StateHolder {
private MethodExpression methodExpression;
private boolean isTransient = false;
public MethodExpressionToMethodBinding() {
methodExpression = null;
}
/** Creates a new instance of MethodExpressionToMethodBinding */
public MethodExpressionToMethodBinding(MethodExpression methodExpression) {
this.methodExpression = methodExpression;
}
@Override
public String getExpressionString()
{
return methodExpression.getExpressionString();
}
@Override
public Class getType(FacesContext facesContext)
throws MethodNotFoundException {
try {
return methodExpression.getMethodInfo(facesContext.getELContext()).getReturnType();
} catch (javax.el.MethodNotFoundException e) {
throw new javax.faces.el.MethodNotFoundException(e);
} catch (ELException e) {
throw new EvaluationException(e);
}
}
@Override
public Object invoke(FacesContext facesContext, Object[] params)
throws EvaluationException, MethodNotFoundException {
try {
return methodExpression.invoke(facesContext.getELContext(), params);
} catch (javax.el.MethodNotFoundException e) {
throw new javax.faces.el.MethodNotFoundException(e);
} catch (ELException e) {
throw new EvaluationException(e);
}
}
// -------- StateHolder methods -------------------------------------------
public void restoreState(FacesContext context, Object state) {
if(state != null)
methodExpression = (MethodExpression)state;
}
public Object saveState(FacesContext context) {
if(!isTransient)
return methodExpression;
return null;
}
public void setTransient(boolean newTransientValue) {
isTransient = newTransientValue;
}
public boolean isTransient() {
return isTransient;
}
}