// 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.wml;
import org.apache.tapestry.IRequestCycle;
import org.apache.tapestry.form.IPropertySelectionModel;
/**
* SelectionField specifies a postfield element and it is used to complement the
* {@link PropertySelection}component.
*
* @author David Solis
* @since 3.0
*/
public abstract class SelectionField extends AbstractPostfield
{
protected void rewind(IRequestCycle cycle)
{
String optionValue = cycle.getParameter(getName());
IPropertySelectionModel model = getModel();
Object value = (optionValue == null) ? null : model.translateValue(optionValue);
updateValue(value);
}
public abstract IPropertySelectionModel getModel();
}