| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.FormsConstants; |
| 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 $Id$ |
| */ |
| 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", null); |
| String parentPath = DomHelper.getAttribute(bindingElem, "parent-path", null); |
| String rowPath = DomHelper.getAttribute(bindingElem, "row-path", null); |
| |
| Convertor convertor = null; |
| Locale convertorLocale = Locale.US; |
| Element convertorEl = DomHelper.getChildElement(bindingElem, FormsConstants.DEFINITION_NS, "convertor"); |
| if (convertorEl != null) { |
| String datatype = DomHelper.getAttribute(convertorEl, "datatype", null); |
| String localeStr = DomHelper.getAttribute(convertorEl, "locale", null); |
| if (localeStr != null) { |
| convertorLocale = I18nUtils.parseLocale(localeStr); |
| } |
| |
| convertor = assistant.getDatatypeManager().createConvertor(datatype, convertorEl); |
| } |
| |
| MultiValueJXPathBinding existingBinding = (MultiValueJXPathBinding) assistant.getContext().getSuperBinding(); |
| JXPathBindingBase[] existingBindings = new JXPathBindingBase[0]; |
| if (existingBinding != null) { |
| commonAtts = JXPathBindingBuilderBase.mergeCommonAttributes(existingBinding.getCommonAtts(), commonAtts); |
| existingBindings = existingBinding.getUpdateBinding().getChildBindings(); |
| |
| if (multiValueId == null) |
| multiValueId = existingBinding.getId(); |
| if (parentPath == null) |
| parentPath = existingBinding.getMultiValuePath(); |
| if (rowPath == null) |
| rowPath = existingBinding.getRowPath(); |
| |
| if (convertor == null) { |
| convertor = existingBinding.getConvertor(); |
| convertorLocale = existingBinding.getLocale(); |
| } |
| } |
| |
| Element updateWrapElement = |
| DomHelper.getChildElement(bindingElem, BindingManager.NAMESPACE, "on-update"); |
| JXPathBindingBase[] updateBindings = assistant.makeChildBindings(updateWrapElement,existingBindings); |
| |
| |
| 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", e, |
| DomHelper.getLocationObject(bindingElem)); |
| } |
| } |
| } |