JavaItemProviderAdapterFactory.java

/**
 * Copyright (c) 2002-2006 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 - Initial API and implementation
 */
package org.eclipse.emf.java.provider;


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.IEditingDomainItemProvider;
import org.eclipse.emf.edit.provider.IItemLabelProvider;
import org.eclipse.emf.edit.provider.IItemPropertySource;
import org.eclipse.emf.edit.provider.INotifyChangedListener;
import org.eclipse.emf.edit.provider.IStructuredItemContentProvider;
import org.eclipse.emf.edit.provider.ITreeItemContentProvider;
import org.eclipse.emf.java.util.JavaAdapterFactory;


/**
 * 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.
 * <!-- begin-user-doc -->
 * <!-- end-user-doc -->
 * @generated
 */
public class JavaItemProviderAdapterFactory extends JavaAdapterFactory implements ComposeableAdapterFactory, IChangeNotifier
{
  /**
   * This keeps track of the root adapter factory that delegates to this adapter factory.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected ComposedAdapterFactory parentAdapterFactory;

  /**
   * This is used to implement {@link org.eclipse.emf.edit.provider.IChangeNotifier}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected IChangeNotifier changeNotifier = new ChangeNotifier();

  /**
   * This keeps track of all the supported types checked by {@link #isFactoryForType isFactoryForType}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected Collection<Object> supportedTypes = new ArrayList<Object>();

  /**
   * This constructs an instance.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public JavaItemProviderAdapterFactory()
  {
    supportedTypes.add(IEditingDomainItemProvider.class);
    supportedTypes.add(IStructuredItemContentProvider.class);
    supportedTypes.add(ITreeItemContentProvider.class);
    supportedTypes.add(IItemLabelProvider.class);
    supportedTypes.add(IItemPropertySource.class);
  }

  /**
   * This keeps track of the one adapter used for all {@link org.eclipse.emf.java.JClass} instances.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected JClassItemProvider jClassItemProvider;

  /**
   * This creates an adapter for a {@link org.eclipse.emf.java.JClass}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Adapter createJClassAdapter()
  {
    if (jClassItemProvider == null)
    {
      jClassItemProvider = new JClassItemProvider(this);
    }

    return jClassItemProvider;
  }

  /**
   * This keeps track of the one adapter used for all {@link org.eclipse.emf.java.JCompilationUnit} instances.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected JCompilationUnitItemProvider jCompilationUnitItemProvider;

  /**
   * This creates an adapter for a {@link org.eclipse.emf.java.JCompilationUnit}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Adapter createJCompilationUnitAdapter()
  {
    if (jCompilationUnitItemProvider == null)
    {
      jCompilationUnitItemProvider = new JCompilationUnitItemProvider(this);
    }

    return jCompilationUnitItemProvider;
  }

  /**
   * This keeps track of the one adapter used for all {@link org.eclipse.emf.java.JField} instances.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected JFieldItemProvider jFieldItemProvider;

  /**
   * This creates an adapter for a {@link org.eclipse.emf.java.JField}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Adapter createJFieldAdapter()
  {
    if (jFieldItemProvider == null)
    {
      jFieldItemProvider = new JFieldItemProvider(this);
    }

    return jFieldItemProvider;
  }

  /**
   * This keeps track of the one adapter used for all {@link org.eclipse.emf.java.JInitializer} instances.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected JInitializerItemProvider jInitializerItemProvider;

  /**
   * This creates an adapter for a {@link org.eclipse.emf.java.JInitializer}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Adapter createJInitializerAdapter()
  {
    if (jInitializerItemProvider == null)
    {
      jInitializerItemProvider = new JInitializerItemProvider(this);
    }

    return jInitializerItemProvider;
  }

  /**
   * This keeps track of the one adapter used for all {@link org.eclipse.emf.java.JMethod} instances.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected JMethodItemProvider jMethodItemProvider;

  /**
   * This creates an adapter for a {@link org.eclipse.emf.java.JMethod}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Adapter createJMethodAdapter()
  {
    if (jMethodItemProvider == null)
    {
      jMethodItemProvider = new JMethodItemProvider(this);
    }

    return jMethodItemProvider;
  }

  /**
   * This keeps track of the one adapter used for all {@link org.eclipse.emf.java.JParameter} instances.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected JParameterItemProvider jParameterItemProvider;

  /**
   * This creates an adapter for a {@link org.eclipse.emf.java.JParameter}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Adapter createJParameterAdapter()
  {
    if (jParameterItemProvider == null)
    {
      jParameterItemProvider = new JParameterItemProvider(this);
    }

    return jParameterItemProvider;
  }

  /**
   * This keeps track of the one adapter used for all {@link org.eclipse.emf.java.JPackage} instances.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  protected JPackageItemProvider jPackageItemProvider;

  /**
   * This creates an adapter for a {@link org.eclipse.emf.java.JPackage}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Adapter createJPackageAdapter()
  {
    if (jPackageItemProvider == null)
    {
      jPackageItemProvider = new JPackageItemProvider(this);
    }

    return jPackageItemProvider;
  }

  /**
   * This returns the root adapter factory that contains this factory.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public ComposeableAdapterFactory getRootAdapterFactory()
  {
    return parentAdapterFactory == null ? this : parentAdapterFactory.getRootAdapterFactory();
  }

  /**
   * This sets the composed adapter factory that contains this factory.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void setParentAdapterFactory(ComposedAdapterFactory parentAdapterFactory)
  {
    this.parentAdapterFactory = parentAdapterFactory;
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public boolean isFactoryForType(Object type)
  {
    return supportedTypes.contains(type) || super.isFactoryForType(type);
  }

  /**
   * This implementation substitutes the factory itself as the key for the adapter.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  public Adapter adapt(Notifier notifier, Object type)
  {
    return super.adapt(notifier, this);
  }

  /**
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  @Override
  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.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void addListener(INotifyChangedListener notifyChangedListener)
  {
    changeNotifier.addListener(notifyChangedListener);
  }

  /**
   * This removes a listener.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void removeListener(INotifyChangedListener notifyChangedListener)
  {
    changeNotifier.removeListener(notifyChangedListener);
  }

  /**
   * This delegates to {@link #changeNotifier} and to {@link #parentAdapterFactory}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   * @generated
   */
  public void fireNotifyChanged(Notification notification)
  {
    changeNotifier.fireNotifyChanged(notification);

    if (parentAdapterFactory != null)
    {
      parentAdapterFactory.fireNotifyChanged(notification);
    }
  }

}