1 /*

     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 * Wrapper for a trace view extension

    17 *

    18 */

    19 package com.nokia.tracebuilder.view;

    20 

    21 import java.util.Iterator;

    22 

    23 import com.nokia.tracebuilder.engine.TraceViewExtension;

    24 import com.nokia.tracebuilder.model.TraceModelExtensionUpdateListener;

    25 

    26 /**

    27  * Wrapper for a trace view extension

    28  * 

    29  */

    30 final class TraceViewExtensionWrapper extends ListWrapper implements

    31 		TraceModelExtensionUpdateListener {

    32 

    33 	/**

    34 	 * The wrapped extension

    35 	 */

    36 	private TraceViewExtension extension;

    37 

    38 	/**

    39 	 * Creates a new extension wrapper.

    40 	 * 

    41 	 * @param extension

    42 	 *            the extension to be shown in the view

    43 	 * @param parent

    44 	 *            parent wrapper

    45 	 * @param updater

    46 	 *            the update notifier

    47 	 */

    48 	TraceViewExtensionWrapper(TraceViewExtension extension, WrapperBase parent,

    49 			WrapperUpdater updater) {

    50 		super(parent, updater);

    51 		this.extension = extension;

    52 		extension.addUpdateListener(this);

    53 		extension.setViewReference(this);

    54 		createChildren();

    55 	}

    56 

    57 	/**

    58 	 * Returns the wrapped extension

    59 	 * 

    60 	 * @return the extension

    61 	 */

    62 	TraceViewExtension getExtension() {

    63 		return extension;

    64 	}

    65 

    66 	/*

    67 	 * (non-Javadoc)

    68 	 * 

    69 	 * @see com.nokia.tracebuilder.view.ListWrapper#delete()

    70 	 */

    71 	@Override

    72 	void delete() {

    73 		extension.setViewReference(null);

    74 		extension.removeUpdateListener(this);

    75 		extension = null;

    76 		super.delete();

    77 	}

    78 

    79 	/**

    80 	 * Creates the child wrappers

    81 	 */

    82 	private void createChildren() {

    83 		Iterator<?> itr = extension.getChildren();

    84 		while (itr.hasNext()) {

    85 			ObjectWrapper wrapper = new ObjectWrapper(itr.next(), this,

    86 					getUpdater());

    87 			add(wrapper);

    88 		}

    89 	}

    90 

    91 	/*

    92 	 * (non-Javadoc)

    93 	 * 

    94 	 * @see com.nokia.tracebuilder.model.TraceModelExtensionUpdateListener#extensionUpdated()

    95 	 */

    96 	public void extensionUpdated() {

    97 		clear();

    98 		createChildren();

    99 		getUpdater().update(

   100 				((TraceObjectWrapper) getParent()).updateExtension(extension));

   101 	}

   102 

   103 }