// Copyright 2004, 2005 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.apache.tapestry.pageload;
import java.util.Iterator;
import org.apache.tapestry.IBinding;
import org.apache.tapestry.IComponent;
import org.apache.tapestry.spec.IComponentSpecification;
/**
* Used to defer connection of inherited informal bindings.
*
* @author Howard Lewis Ship
* @since 4.0
*/
class QueuedInheritInformalBindings implements IQueuedInheritedBinding
{
private IComponent _component;
QueuedInheritInformalBindings(IComponent component)
{
_component = component;
}
public void connect()
{
IComponent container = _component.getContainer();
for(Iterator it = container.getBindingNames().iterator(); it.hasNext();)
{
String bindingName = (String) it.next();
connectInformalBinding(container, _component, bindingName);
}
}
private void connectInformalBinding(IComponent container,
IComponent component, String bindingName)
{
IComponentSpecification componentSpec = component.getSpecification();
IComponentSpecification containerSpec = container.getSpecification();
// check if binding already exists in the component
if (component.getBinding(bindingName) != null) return;
// check if parameter is informal for the component
if (componentSpec.getParameter(bindingName) != null
|| componentSpec.isReservedParameterName(bindingName)) return;
// check if parameter is informal for the container
if (containerSpec.getParameter(bindingName) != null
|| containerSpec.isReservedParameterName(bindingName)) return;
// if everything passes, establish binding
IBinding binding = container.getBinding(bindingName);
component.setBinding(bindingName, binding);
}
}