| /******************************************************************************* |
| * Copyright (c) 2004, 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.debug.internal.ui.views.memory; |
| |
| import java.util.ArrayList; |
| import java.util.Enumeration; |
| import java.util.Hashtable; |
| |
| import org.eclipse.debug.core.model.IMemoryBlock; |
| |
| |
| /** |
| * Stores synchronization information for a memory block |
| * Each object of synchronization information contains a memory block, |
| * a list of views to be synchronized and a list of properties to be syncrhonized. |
| * The views are responsible for defining properties to be synchronized and notifying |
| * the synchronizer of properties changes. This is only for keeping track of |
| * values of synchronized properties and firing events when properties are changed. |
| * |
| * Memory block serves as a key for synchronization. Views displaying the same |
| * memory block can be synchronized. Views displaying different memory block |
| * cannot be synchronized. |
| * |
| * @since 3.0 |
| */ |
| public class SynchronizeInfo |
| { |
| private IMemoryBlock fBlock; // memory block blocked by the views |
| private Hashtable fProperties; // list of properties to be synchronized |
| |
| /** |
| * Create a new synchronization info object for the memory block |
| * @param block |
| */ |
| public SynchronizeInfo(IMemoryBlock block) |
| { |
| fBlock = block; |
| fProperties = new Hashtable(); |
| } |
| |
| |
| /** |
| * Set a property and its value to the info object |
| * @param propertyId |
| * @param value |
| */ |
| public void setProperty(String propertyId, Object value) |
| { |
| if (propertyId == null) |
| return; |
| |
| if (value == null) |
| return; |
| |
| fProperties.put(propertyId, value); |
| } |
| |
| /** |
| * Returns the value of the property from the info object |
| * @param propertyId |
| * @return value of the property |
| */ |
| public Object getProperty(String propertyId) |
| { |
| if (propertyId == null) |
| return null; |
| |
| Object value = fProperties.get(propertyId); |
| |
| return value; |
| } |
| |
| /** |
| * @return all the property ids stored in this sync info object |
| */ |
| public String[] getPropertyIds() |
| { |
| if (fProperties == null) |
| return new String[0]; |
| |
| Enumeration enumeration = fProperties.keys(); |
| ArrayList ids = new ArrayList(); |
| |
| while (enumeration.hasMoreElements()) |
| { |
| ids.add(enumeration.nextElement()); |
| } |
| |
| return (String[])ids.toArray(new String[ids.size()]); |
| } |
| |
| /** |
| * Clean up the synchronization info object |
| */ |
| public void delete() |
| { |
| |
| if (fProperties != null){ |
| fProperties.clear(); |
| fProperties = null; |
| } |
| |
| if (fBlock != null){ |
| fBlock = null; |
| } |
| } |
| } |