PathVariableChangeEvent


1   /*******************************************************************************
2    * Copyright (c) 2000, 2005 IBM Corporation and others.
3    * All rights reserved. This program and the accompanying materials
4    * are made available under the terms of the Eclipse Public License v1.0
5    * which accompanies this distribution, and is available at
6    * http://www.eclipse.org/legal/epl-v10.html
7    *
8    * Contributors:
9    *     IBM Corporation - initial API and implementation
10   *******************************************************************************/
11  
12  package org.eclipse.core.internal.events;
13  
14  import java.util.EventObject  ;
15  import org.eclipse.core.resources.IPathVariableChangeEvent;
16  import org.eclipse.core.resources.IPathVariableManager;
17  import org.eclipse.core.runtime.IPath;
18  
19  /**
20   * Describes a change in path variable. Core's default implementation for the
21   * <code>IPathVariableChangeEvent</code> interface.
22   */
23  public class PathVariableChangeEvent extends EventObject   implements IPathVariableChangeEvent {
24      private static final long serialVersionUID = 1L;
25  
26      /**
27       * The name of the changed variable.
28       */
29      private String   variableName;
30  
31      /**
32       * The value of the changed variable (may be null). 
33       */
34      private IPath value;
35  
36      /** The event type. */
37      private int type;
38  
39      /**
40       * Constructor for this class.
41       */
42      public PathVariableChangeEvent(IPathVariableManager source, String   variableName, IPath value, int type) {
43          super(source);
44          if (type < VARIABLE_CHANGED || type > VARIABLE_DELETED)
45              throw new IllegalArgumentException  ("Invalid event type: " + type); //$NON-NLS-1$
46          this.variableName = variableName;
47          this.value = value;
48          this.type = type;
49      }
50  
51      /**
52       * @see org.eclipse.core.resources.IPathVariableChangeEvent#getValue()
53       */
54      public IPath getValue() {
55          return value;
56      }
57  
58      /**
59       * @see org.eclipse.core.resources.IPathVariableChangeEvent#getVariableName()
60       */
61      public String   getVariableName() {
62          return variableName;
63      }
64  
65      /**
66       * @see org.eclipse.core.resources.IPathVariableChangeEvent#getType()
67       */
68      public int getType() {
69          return type;
70      }
71  
72      /**
73       * Return a string representation of this object.
74       */
75      public String   toString() {
76          String  [] typeStrings = {"VARIABLE_CHANGED", "VARIABLE_CREATED", "VARIABLE_DELETED"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
77          StringBuffer   sb = new StringBuffer  (getClass().getName());
78          sb.append("[variable = "); //$NON-NLS-1$
79          sb.append(variableName);
80          sb.append(", type = "); //$NON-NLS-1$
81          sb.append(typeStrings[type - 1]);
82          if (type != VARIABLE_DELETED) {
83              sb.append(", value = "); //$NON-NLS-1$
84              sb.append(value);
85          }
86          sb.append("]"); //$NON-NLS-1$
87          return sb.toString();
88      }
89  
90  }
91
A to Z: JavaDoc & Examples Daily Java News & Articles Open Source Projects Open Source Codes Free Computer Books Remove Frame
Popular Tags