/*
* Copyright 1999-2004 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.cocoon.woody.formmodel;
import java.util.Iterator;
import org.w3c.dom.Element;
import org.apache.cocoon.woody.util.DomHelper;
import org.apache.cocoon.woody.Constants;
import org.apache.cocoon.woody.datatype.Datatype;
import org.apache.cocoon.woody.event.ValueChangedListener;
/**
* Builds {@link MultiValueFieldDefinition}s.
*
* @version $Id: MultiValueFieldDefinitionBuilder.java,v 1.11 2004/03/09 13:53:56 reinhard Exp $
*/
public class MultiValueFieldDefinitionBuilder extends AbstractDatatypeWidgetDefinitionBuilder {
public WidgetDefinition buildWidgetDefinition(Element widgetElement) throws Exception {
MultiValueFieldDefinition definition = new MultiValueFieldDefinition();
setLocation(widgetElement, definition);
setId(widgetElement, definition);
setDisplayData(widgetElement, definition);
setValidators(widgetElement, definition);
Element datatypeElement = DomHelper.getChildElement(widgetElement, Constants.WD_NS, "datatype");
if (datatypeElement == null)
throw new Exception("A nested datatype element is required for the widget specified at " + DomHelper.getLocation(widgetElement));
Datatype datatype = datatypeManager.createDatatype(datatypeElement, true);
definition.setDatatype(datatype);
boolean hasSelectionList = buildSelectionList(widgetElement, definition);
if (!hasSelectionList)
throw new Exception("Error: multivaluefields always require a selectionlist at " + DomHelper.getLocation(widgetElement));
boolean required = DomHelper.getAttributeAsBoolean(widgetElement, "required", false);
definition.setRequired(required);
Iterator iter = buildEventListeners(widgetElement, "on-value-changed", ValueChangedListener.class).iterator();
while (iter.hasNext()) {
definition.addValueChangedListener((ValueChangedListener)iter.next());
}
return definition;
}
}