/*
* Copyright 2009-2014 PrimeTek.
*
* 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.primefaces.el;
import java.beans.FeatureDescriptor;
import java.util.Iterator;
import javax.el.ELContext;
import javax.el.ELResolver;
import javax.el.ValueReference;
public class InterceptingResolver extends ELResolver {
private final ELResolver delegate;
private ValueReference valueReference;
public InterceptingResolver(ELResolver delegate) {
this.delegate = delegate;
}
public ValueReference getValueReference() {
return valueReference;
}
// Capture the base and property rather than write the value
@Override
public void setValue(ELContext context, Object base, Object property, Object value) {
// currently not used -> see #7114
if (base != null && property != null) {
context.setPropertyResolved(true);
valueReference = new ValueReference(base, property.toString());
}
}
@Override
public Object getValue(ELContext context, Object base, Object property) {
context.setPropertyResolved(true);
valueReference = new ValueReference(base, property.toString());
return delegate.getValue(context, base, property);
}
// The rest of the methods simply delegate to the existing context
@Override
public Class<?> getType(ELContext context, Object base, Object property) {
return delegate.getType(context, base, property);
}
@Override
public boolean isReadOnly(ELContext context, Object base, Object property) {
return delegate.isReadOnly(context, base, property);
}
@Override
public Iterator<FeatureDescriptor> getFeatureDescriptors(ELContext context, Object base) {
return delegate.getFeatureDescriptors(context, base);
}
@Override
public Class<?> getCommonPropertyType(ELContext context, Object base) {
return delegate.getCommonPropertyType(context, base);
}
}