1 files changed, 166 insertions, 0 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/java/structure/JpaCoreJavaItemProviderAdapterFactory.java b/jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/java/structure/JpaCoreJavaItemProviderAdapterFactory.java
new file mode 100644
index 0000000000..d6ca598339
--- /dev/null
+++ b/jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/java/structure/JpaCoreJavaItemProviderAdapterFactory.java
@@ -0,0 +1,166 @@
+package org.eclipse.jpt.ui.internal.java.structure;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import org.eclipse.emf.common.notify.Adapter;
+import org.eclipse.emf.common.notify.Notification;
+import org.eclipse.emf.common.notify.Notifier;
+import org.eclipse.emf.edit.provider.ChangeNotifier;
+import org.eclipse.emf.edit.provider.ComposeableAdapterFactory;
+import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
+import org.eclipse.emf.edit.provider.IChangeNotifier;
+import org.eclipse.emf.edit.provider.IDisposable;
+import org.eclipse.emf.edit.provider.IEditingDomainItemProvider;
+import org.eclipse.emf.edit.provider.IItemLabelProvider;
+import org.eclipse.emf.edit.provider.INotifyChangedListener;
+import org.eclipse.emf.edit.provider.IStructuredItemContentProvider;
+import org.eclipse.emf.edit.provider.ITreeItemContentProvider;
+import org.eclipse.jpt.core.internal.content.java.util.JpaJavaAdapterFactory;
+
+/**
+ * This is the factory that is used to provide the interfaces needed to support Viewers.
+ * The adapters generated by this factory convert EMF adapter notifications into calls to {@link #fireNotifyChanged fireNotifyChanged}.
+ * The adapters also support Eclipse property sheets.
+ * Note that most of the adapters are shared among multiple instances.
+ */
+public class JpaCoreJavaItemProviderAdapterFactory
+	extends JpaJavaAdapterFactory
+	implements ComposeableAdapterFactory, 
+		IChangeNotifier, 
+		IDisposable
+{
+	/**
+	 * This keeps track of the root adapter factory that delegates to this adapter factory.
+	 */
+	protected ComposedAdapterFactory parentAdapterFactory;
+
+	/**
+	 * This is used to implement {@link org.eclipse.emf.edit.provider.IChangeNotifier}.
+	 */
+	protected IChangeNotifier changeNotifier = new ChangeNotifier();
+
+	/**
+	 * This keeps track of all the supported types checked by {@link #isFactoryForType isFactoryForType}.
+	 */
+	protected Collection supportedTypes = new ArrayList();
+
+	
+	public JpaCoreJavaItemProviderAdapterFactory() {
+		supportedTypes.add(IEditingDomainItemProvider.class);
+		supportedTypes.add(IStructuredItemContentProvider.class);
+		supportedTypes.add(ITreeItemContentProvider.class);
+		supportedTypes.add(IItemLabelProvider.class);
+	}
+	
+	
+	protected JavaCompilationUnitItemProvider javaCompilationUnitItemProvider;
+	
+	public Adapter createJpaCompilationUnitAdapter() {
+		if (javaCompilationUnitItemProvider == null) {
+			javaCompilationUnitItemProvider = new JavaCompilationUnitItemProvider(this);
+		}
+		
+		return javaCompilationUnitItemProvider;
+	}
+	
+	protected JavaPersistentTypeItemProvider javaPersistentTypeItemProvider;
+	
+	public Adapter createJavaPersistentTypeAdapter() {
+		if (javaPersistentTypeItemProvider == null) {
+			javaPersistentTypeItemProvider = new JavaPersistentTypeItemProvider(this);
+		}
+		
+		return javaPersistentTypeItemProvider;
+	}
+	
+	protected JavaPersistentAttributeItemProvider javaPersistentAttributeItemProvider;
+	
+	public Adapter createJavaPersistentAttributeAdapter() {
+		if (javaPersistentAttributeItemProvider == null) {
+			javaPersistentAttributeItemProvider = new JavaPersistentAttributeItemProvider(
+					this);
+		}
+		
+		return javaPersistentAttributeItemProvider;
+	}
+	
+	/**
+	 * This returns the root adapter factory that contains this factory.
+	 */
+	public ComposeableAdapterFactory getRootAdapterFactory() {
+		return parentAdapterFactory == null ? 
+			this : 
+			parentAdapterFactory.getRootAdapterFactory();
+	}
+	
+	/**
+	 * This sets the composed adapter factory that contains this factory.
+	 */
+	public void setParentAdapterFactory(
+			ComposedAdapterFactory parentAdapterFactory) {
+		this.parentAdapterFactory = parentAdapterFactory;
+	}
+	
+	public boolean isFactoryForType(Object type) {
+		return supportedTypes.contains(type) || super.isFactoryForType(type);
+	}
+	
+	/**
+	 * This implementation substitutes the factory itself as the key for the adapter.
+	 */
+	public Adapter adapt(Notifier notifier, Object type) {
+		return super.adapt(notifier, this);
+	}
+	
+	public Object adapt(Object object, Object type) {
+		if (isFactoryForType(type)) {
+			Object adapter = super.adapt(object, type);
+			if (!(type instanceof Class)
+					|| (((Class) type).isInstance(adapter))) {
+				return adapter;
+			}
+		}
+		
+		return null;
+	}
+	
+	/**
+	 * This adds a listener.
+	 */
+	public void addListener(INotifyChangedListener notifyChangedListener) {
+		changeNotifier.addListener(notifyChangedListener);
+	}
+	
+	/**
+	 * This removes a listener.
+	 */
+	public void removeListener(INotifyChangedListener notifyChangedListener) {
+		changeNotifier.removeListener(notifyChangedListener);
+	}
+	
+	/**
+	 * This delegates to {@link #changeNotifier} and to {@link #parentAdapterFactory}.
+	 */
+	public void fireNotifyChanged(Notification notification) {
+		changeNotifier.fireNotifyChanged(notification);
+		
+		if (parentAdapterFactory != null) {
+			parentAdapterFactory.fireNotifyChanged(notification);
+		}
+	}
+	
+	/**
+	 * This disposes all of the item providers created by this factory. 
+	 */
+	public void dispose() {
+		if (javaCompilationUnitItemProvider != null) {
+			javaCompilationUnitItemProvider.dispose();
+		}
+		if (javaPersistentTypeItemProvider != null) {
+			javaPersistentTypeItemProvider.dispose();
+		}
+		if (javaPersistentAttributeItemProvider != null) {
+			javaPersistentAttributeItemProvider.dispose();
+		}
+	}
+}
+\ No newline at end of file