| /* |
| * 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.binding; |
| |
| import java.lang.reflect.Method; |
| |
| import org.apache.avalon.framework.CascadingRuntimeException; |
| import org.apache.cocoon.woody.formmodel.Widget; |
| import org.apache.commons.jxpath.JXPathContext; |
| |
| /** |
| * InsertBeanJXPathBinding provides an implementation of a {@link Binding} |
| * that inserts a new instance of the specified bean (classname) into the target |
| * back-end model upon save. |
| * <p> |
| * NOTES: <ol> |
| * <li>This Binding does not perform any actions when loading.</li> |
| * </ol> |
| * |
| * @version CVS $Id: InsertBeanJXPathBinding.java,v 1.9 2004/03/05 13:02:27 bdelacretaz Exp $ |
| */ |
| public class InsertBeanJXPathBinding extends JXPathBindingBase { |
| |
| private final String className; |
| private final String addMethodName; |
| |
| /** |
| * Constructs InsertBeanJXPathBinding |
| */ |
| public InsertBeanJXPathBinding(JXPathBindingBuilderBase.CommonAttributes commonAtts, String className, String addMethod) { |
| super(commonAtts); |
| this.className = className; |
| this.addMethodName = addMethod; |
| } |
| |
| /** |
| * Do-nothing implementation of the interface. |
| */ |
| public void doLoad(Widget frmModel, JXPathContext jxpc) { |
| // doesn't do a thing when loading. |
| } |
| |
| /** |
| * Registers a JXPath Factory on the JXPath Context. |
| * <p> |
| * The factory will insert a new instance of the specified bean (classname) |
| * inside this object into the target objectmodel. |
| */ |
| public void doSave(Widget frmModel, JXPathContext jxpc) throws BindingException { |
| try { |
| Object parent = jxpc.getContextBean(); |
| Object[] args = new Object[1]; |
| Class[] argTypes = new Class[1]; |
| |
| // instantiate the new object |
| argTypes[0] = Class.forName(this.className); |
| args[0] = argTypes[0].newInstance(); |
| |
| // lookup the named method on the parent |
| Method addMethod = |
| parent.getClass().getMethod(this.addMethodName, argTypes); |
| |
| // invoke this method with this new beast. |
| addMethod.invoke(parent, args); |
| |
| if (getLogger().isDebugEnabled()) |
| getLogger().debug("InsertBean performed."); |
| } catch (Exception e) { |
| throw new CascadingRuntimeException("InsertBean failed.", e); |
| } |
| |
| // jxpc.setFactory(new AbstractFactory() { |
| // public boolean createObject(JXPathContext context, Pointer pointer, |
| // Object parent, String name, int index) { |
| // try { |
| // Object[] args = new Object[1]; |
| // Class[] argTypes = new Class[1]; |
| // |
| // // instantiate the new object |
| // argTypes[0] = Class.forName(InsertBeanJXPathBinding.this.className); |
| // args[0] = argTypes[0].newInstance(); |
| // // lookup the named method on the parent |
| // |
| // Method addMethod = |
| // parent.getClass().getMethod(InsertBeanJXPathBinding.this.addMethodName, argTypes); |
| // // invoke this method with this new beast. |
| // |
| // addMethod.invoke(parent, args); |
| // |
| // if (getLogger().isDebugEnabled()) |
| // getLogger().debug("InsertBean jxpath factory executed for index " + index); |
| // return true; |
| // } catch (Exception e) { |
| // throw new CascadingRuntimeException("InsertBean jxpath factory failed.", e); |
| // } |
| // } |
| // }); |
| // |
| // if (getLogger().isDebugEnabled()) |
| // getLogger().debug("done registered factory for inserting node -- " + toString()); |
| } |
| |
| public String toString() { |
| return "InsertBeanJXPathBinding [for class " + this.className + " to addMethod " + this.addMethodName + "]"; |
| } |
| |
| } |