| /******************************************************************************* |
| * Copyright (c) 2003, 2005 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jst.j2ee.internal.provider; |
| |
| |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.eclipse.emf.edit.provider.ITreeItemContentProvider; |
| import org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider; |
| import org.eclipse.jface.viewers.IContentProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| import org.eclipse.jst.j2ee.ejb.EnterpriseBean; |
| import org.eclipse.jst.j2ee.internal.ejb.provider.GroupedEJBJarItemProvider; |
| |
| |
| public class J2EEAdapterFactoryContentProvider extends AdapterFactoryContentProvider { |
| protected MethodsProviderDelegate methodsProviderDelegate; |
| protected static final Class ITreeItemContentProviderClass = ITreeItemContentProvider.class; |
| protected List roots = new ArrayList(); |
| |
| /** |
| * J2EEAdapterFactoryContentProvider constructor comment. |
| * |
| * @param adapterFactory |
| * org.eclipse.emf.common.notify.AdapterFactory |
| */ |
| public J2EEAdapterFactoryContentProvider(org.eclipse.emf.common.notify.AdapterFactory adapterFactory) { |
| super(adapterFactory); |
| methodsProviderDelegate = new MethodsProviderDelegate(adapterFactory); |
| } |
| |
| public Object getParent(Object object) { |
| |
| if (MethodsProviderDelegate.providesContentFor(object)) |
| return methodsProviderDelegate.getParent(object); |
| |
| //Added so internalExpand() in AbstractTreeViewer knows that EJB's parent is now instance |
| // of J2EEItemProvider |
| //rather than EJBJar only if bean is root bean |
| if (object instanceof EnterpriseBean && GroupedEJBJarItemProvider.isRootBean((EnterpriseBean) object)) { |
| J2EEItemProvider provider = GroupedEJBJarItemProvider.getEJBItemProvider((EnterpriseBean) object); |
| if (provider != null) { |
| return provider; |
| } |
| } |
| |
| Object parent = super.getParent(object); |
| |
| // if (parent == null) { |
| // if (object instanceof EObject) |
| // return J2EERoot.instance().groupFor((EObject) object); |
| // } |
| return parent; |
| } |
| |
| protected boolean isEMFEditObject(Object object) { |
| ITreeItemContentProvider treeItemContentProvider = (ITreeItemContentProvider) adapterFactory.adapt(object, ITreeItemContentProviderClass); |
| return treeItemContentProvider != null; |
| } |
| |
| /* |
| * @see ITreeContentProvider#getChildren(Object) |
| */ |
| public Object[] getChildren(Object parentElement) { |
| |
| if (MethodsProviderDelegate.providesContentFor(parentElement)) |
| return methodsProviderDelegate.getChildren(parentElement); |
| else if (isEMFEditObject(parentElement)) |
| return super.getChildren(parentElement); |
| else |
| return null; |
| } |
| |
| /* |
| * @see IStructuredContentProvider#getElements(Object) |
| */ |
| public Object[] getElements(Object inputElement) { |
| return getRoots(inputElement); |
| // else if (MethodsProviderDelegate.providesContentFor(inputElement)) |
| // return methodsProviderDelegate.getChildren(inputElement); |
| // return super.getElements(inputElement); |
| } |
| |
| public Object[] getRoots(Object parent) { |
| if (roots.isEmpty()) { |
| Object[] j2eeGroups = super.getChildren(parent); |
| roots.addAll(Arrays.asList(j2eeGroups)); |
| } |
| return roots.toArray(); |
| } |
| |
| /* |
| * @see ITreeContentProvider#hasChildren(Object) |
| */ |
| public boolean hasChildren(Object element) { |
| if (MethodsProviderDelegate.providesContentFor(element)) |
| return methodsProviderDelegate.hasChildren(element); |
| else if (isEMFEditObject(element)) |
| return super.hasChildren(element); |
| else |
| return false; |
| } |
| |
| /** |
| * @see IContentProvider#dispose() |
| */ |
| public void dispose() { |
| super.dispose(); |
| if (methodsProviderDelegate != null) |
| methodsProviderDelegate.dispose(); |
| } |
| |
| /** |
| * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(Viewer, Object, Object) |
| */ |
| public void inputChanged(Viewer aViewer, Object oldInput, Object newInput) { |
| super.inputChanged(aViewer, oldInput, newInput); |
| methodsProviderDelegate.inputChanged(aViewer, oldInput, newInput); |
| } |
| |
| } |