001: /*
002: The contents of this file are subject to the Common Public Attribution License
003: Version 1.0 (the "License"); you may not use this file except in compliance with
004: the License. You may obtain a copy of the License at
005: http://www.projity.com/license . The License is based on the Mozilla Public
006: License Version 1.1 but Sections 14 and 15 have been added to cover use of
007: software over a computer network and provide for limited attribution for the
008: Original Developer. In addition, Exhibit A has been modified to be consistent
009: with Exhibit B.
010:
011: Software distributed under the License is distributed on an "AS IS" basis,
012: WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for the
013: specific language governing rights and limitations under the License. The
014: Original Code is OpenProj. The Original Developer is the Initial Developer and
015: is Projity, Inc. All portions of the code written by Projity are Copyright (c)
016: 2006, 2007. All Rights Reserved. Contributors Projity, Inc.
017:
018: Alternatively, the contents of this file may be used under the terms of the
019: Projity End-User License Agreeement (the Projity License), in which case the
020: provisions of the Projity License are applicable instead of those above. If you
021: wish to allow use of your version of this file only under the terms of the
022: Projity License and not to allow others to use your version of this file under
023: the CPAL, indicate your decision by deleting the provisions above and replace
024: them with the notice and other provisions required by the Projity License. If
025: you do not delete the provisions above, a recipient may use your version of this
026: file under either the CPAL or the Projity License.
027:
028: [NOTE: The text of this license may differ slightly from the text of the notices
029: in Exhibits A and B of the license at http://www.projity.com/license. You should
030: use the latest text at http://www.projity.com/license for your modifications.
031: You may not remove this license text from the source files.]
032:
033: Attribution Information: Attribution Copyright Notice: Copyright © 2006, 2007
034: Projity, Inc. Attribution Phrase (not exceeding 10 words): Powered by OpenProj,
035: an open source solution from Projity. Attribution URL: http://www.projity.com
036: Graphic Image as provided in the Covered Code as file: openproj_logo.png with
037: alternatives listed on http://www.projity.com/logo
038:
039: Display of Attribution Information is required in Larger Works which are defined
040: in the CPAL as a work which combines Covered Code or portions thereof with code
041: not governed by the terms of the CPAL. However, in addition to the other notice
042: obligations, all copies of the Covered Code in Executable and Source Code form
043: distributed must, as a form of attribution of the original author, include on
044: each user interface screen the "OpenProj" logo visible to all users. The
045: OpenProj logo should be located horizontally aligned with the menu bar and left
046: justified on the top left of the screen adjacent to the File menu. The logo
047: must be at least 100 x 25 pixels. When users click on the "OpenProj" logo it
048: must direct them back to http://www.projity.com.
049: */
050: package com.projity.document;
051:
052: import java.util.EventListener;
053: import java.util.EventObject;
054:
055: import org.apache.commons.pool.BasePoolableObjectFactory;
056: import org.apache.commons.pool.impl.GenericObjectPool;
057:
058: import com.projity.field.Field;
059: import com.projity.undo.NodeUndoInfo;
060:
061: /**
062: *
063: */
064: public class ObjectEvent extends EventObject {
065:
066: public Object getObject() {
067: return object;
068: }
069:
070: public boolean isUpdate() {
071: return (eventType == UPDATE);
072: }
073:
074: public boolean isDelete() {
075: return (eventType == DELETE);
076: }
077:
078: public boolean isCreate() {
079: return (eventType == CREATE);
080: }
081:
082: public int getType() {
083: return eventType;
084: }
085:
086: public NodeUndoInfo getInfo() {
087: return info;
088: }
089:
090: /**
091: * @param object The object to set.
092: */
093: public void setObject(Object object) {
094: this .object = object;
095: }
096:
097: private static Object NULL_SOURCE = new Object();
098: public static final int CREATE = 1;
099: public static final int UPDATE = 0;
100: public static final int DELETE = -1;
101:
102: private Object object;
103: private int eventType;
104: private NodeUndoInfo info;
105: private Field field = null;
106:
107: public static ObjectEvent getInstance(Object source) {
108: ObjectEvent objectEvent;
109: try {
110: objectEvent = (ObjectEvent) pool.borrowObject();
111: } catch (Exception e) {
112: e.printStackTrace();
113: return null;
114: }
115: objectEvent.source = source;
116: return objectEvent;
117: }
118:
119: public static ObjectEvent getInstance(Object source, Object object,
120: int eventType, NodeUndoInfo info) {
121: ObjectEvent objectEvent = getInstance(source);
122: objectEvent.object = object;
123: objectEvent.eventType = eventType;
124: objectEvent.info = info;
125: return objectEvent;
126: }
127:
128: public void recycle() {
129: try {
130: pool.returnObject(this );
131: } catch (Exception e) {
132: // TODO Auto-generated catch block
133: e.printStackTrace();
134: }
135: }
136:
137: private void reset() {
138: source = null;
139: eventType = 0;
140: object = null;
141: }
142:
143: private ObjectEvent() {
144: super (NULL_SOURCE); // it needs a source. Will be modified later
145: reset();
146: }
147:
148: private static GenericObjectPool pool = new GenericObjectPool(
149: new ObjectEventFactory());
150:
151: private static class ObjectEventFactory extends
152: BasePoolableObjectFactory {
153: public Object makeObject() throws Exception {
154: return new ObjectEvent();
155: }
156:
157: public void activateObject(Object arg0) throws Exception {
158: ObjectEvent objectEvent = (ObjectEvent) arg0;
159: objectEvent.reset();
160:
161: }
162: }
163:
164: public interface Listener extends EventListener {
165: public void objectChanged(ObjectEvent objectEvent);
166: }
167:
168: /**
169: * @return Returns the field.
170: */
171: public Field getField() {
172: return field;
173: }
174:
175: /**
176: * @param field The field to set.
177: */
178: public void setField(Field field) {
179: this.field = field;
180: }
181: }
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