/*
* 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.forms.binding;
import java.util.Locale;
import org.apache.cocoon.forms.Constants;
import org.apache.cocoon.forms.datatype.convertor.Convertor;
import org.apache.cocoon.forms.util.DomHelper;
import org.apache.cocoon.i18n.I18nUtils;
import org.w3c.dom.Element;
/**
* A simple multi field binding that will replace (i.e. delete then re-add all) its
* content.
* <pre><code>
* <fb:multi-value id="<i>widget-id</i>"
* parent-path="<i>xpath-expression</i>"
* row-path="<i>xpath-expression</i>">
* <!-- optional child binding to be executed upon 'save' of changed value -->
* <fb:on-update>
* <!-- any childbinding -->
* </fb:on-update>
* </fb:multi-value>
* </code></pre>
*
* @version CVS $Id: MultiValueJXPathBindingBuilder.java,v 1.4 2004/04/06 18:39:58 mpo Exp $
*/
public class MultiValueJXPathBindingBuilder
extends JXPathBindingBuilderBase {
public JXPathBindingBase buildBinding(
Element bindingElem,
JXPathBindingManager.Assistant assistant) throws BindingException {
try {
CommonAttributes commonAtts = JXPathBindingBuilderBase.getCommonAttributes(bindingElem);
String multiValueId = DomHelper.getAttribute(bindingElem, "id");
String parentPath = DomHelper.getAttribute(bindingElem, "parent-path");
String rowPath = DomHelper.getAttribute(bindingElem, "row-path");
Element updateWrapElement =
DomHelper.getChildElement(bindingElem, BindingManager.NAMESPACE, "on-update");
JXPathBindingBase[] updateBindings = assistant.makeChildBindings(updateWrapElement);
Convertor convertor = null;
Locale convertorLocale = Locale.US;
Element convertorEl = DomHelper.getChildElement(bindingElem, Constants.DEFINITION_NS, "convertor");
if (convertorEl != null) {
String datatype = DomHelper.getAttribute(convertorEl, "datatype");
String localeStr = convertorEl.getAttribute("datatype");
if (!localeStr.equals("")) {
convertorLocale = I18nUtils.parseLocale(localeStr);
}
convertor = assistant.getDatatypeManager().createConvertor(datatype, convertorEl);
}
return new MultiValueJXPathBinding( commonAtts, multiValueId, parentPath, rowPath,
updateBindings, convertor, convertorLocale);
} catch (BindingException e) {
throw e;
} catch (Exception e) {
throw new BindingException("Error building multi value binding defined at " + DomHelper.getLocation(bindingElem), e);
}
}
}