| /* |
| * 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 org.apache.cocoon.forms.binding.library.Library; |
| import org.apache.cocoon.forms.formmodel.Form; |
| import org.apache.cocoon.forms.formmodel.Widget; |
| |
| import org.apache.commons.jxpath.JXPathContext; |
| |
| /** |
| * AbstractCustomBinding |
| * @version $Id$ |
| */ |
| public abstract class AbstractCustomBinding implements Binding { |
| |
| //TODO: following stuff should be removed after we cleaned out the Binding interface |
| private Binding parent; |
| private String id; |
| private String xpath; |
| |
| public void setXpath(String path) { |
| this.xpath = path; |
| } |
| |
| public String getXpath() { |
| return xpath; |
| } |
| |
| /** |
| * Sets parent binding. |
| */ |
| public void setParent(Binding binding) { |
| this.parent = binding; |
| } |
| |
| /** |
| * Returns binding definition id. |
| */ |
| public String getId() { |
| return this.id; |
| } |
| |
| public Binding getClass(String id) { |
| return this.parent.getClass(id); |
| } |
| //TODO: end of stuff to clean out over time |
| //below is the real useful stuff... |
| |
| public boolean isValid() { |
| return false; // pessimistic |
| } |
| |
| // needed for the Binding interface, should never need to be used in a subclass |
| public Library getEnclosingLibrary() { |
| return null; |
| } |
| |
| public void setEnclosingLibrary(Library lib) { |
| } |
| |
| /** |
| * Binding service method called upon loading. |
| * This will delegate to the overloaded version specific for this base-class. |
| * {@link #doLoad(Widget, JXPathContext)} |
| * |
| * @param frmModel |
| * @param objModel |
| * @throws BindingException |
| */ |
| public final void loadFormFromModel(Widget frmModel, Object objModel) throws BindingException { |
| if (frmModel instanceof Form) { |
| ((Form) frmModel).informStartLoadingModel(); |
| } |
| try { |
| doLoad(frmModel, (JXPathContext) objModel); |
| } catch (Exception e) { |
| throw new BindingException("Error executing custom binding", e); |
| } |
| if (frmModel instanceof Form) { |
| ((Form) frmModel).informEndLoadingModel(); |
| } |
| } |
| |
| /** |
| * Binding service method called upon saving. |
| * This will delegate to the overloaded version specific for this base-class. |
| * {@link #doSave(Widget, JXPathContext)} |
| * |
| * @param frmModel |
| * @param objModel |
| * @throws BindingException |
| */ |
| public final void saveFormToModel(Widget frmModel, Object objModel) throws BindingException { |
| if (frmModel instanceof Form) { |
| ((Form) frmModel).informStartSavingModel(); |
| } |
| try { |
| doSave(frmModel, (JXPathContext) objModel); |
| } catch (Exception e) { |
| throw new BindingException("Error executing custom binding", e); |
| } |
| if (frmModel instanceof Form) { |
| ((Form) frmModel).informEndSavingModel(); |
| } |
| } |
| |
| /** |
| * @param frmModel |
| * @param context |
| */ |
| protected abstract void doLoad(Widget frmModel, JXPathContext context) throws Exception; |
| protected abstract void doSave(Widget frmModel, JXPathContext context) throws Exception; |
| } |