Source Code Cross Referenced for OMVector.java in  » Science » Cougaar12_4 » org » cougaar » mlm » debug » ui » draw » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Science » Cougaar12_4 » org.cougaar.mlm.debug.ui.draw 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * <copyright>
003:         *  
004:         *  Copyright 1997-2004 BBNT Solutions, LLC
005:         *  under sponsorship of the Defense Advanced Research Projects
006:         *  Agency (DARPA).
007:         * 
008:         *  You can redistribute this software and/or modify it under the
009:         *  terms of the Cougaar Open Source License as published on the
010:         *  Cougaar Open Source Website (www.cougaar.org).
011:         * 
012:         *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
013:         *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
014:         *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
015:         *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
016:         *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
017:         *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
018:         *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
019:         *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
020:         *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
021:         *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
022:         *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
023:         *  
024:         * </copyright>
025:         */
026:
027:        package org.cougaar.mlm.debug.ui.draw;
028:
029:        import java.util.Enumeration;
030:        import java.util.NoSuchElementException;
031:        import java.util.Vector;
032:
033:        /** Class OMVector
034:         *
035:         *  a vector of objects and an encapsulated enumerator.
036:         *
037:         **/
038:        public class OMVector {
039:
040:            // vector of objects
041:            Vector vertices = null;
042:            int size_ = 0; // number of elements
043:            int tail_ = -1; // index for reverse iteration
044:
045:            // vector iterator
046:            Enumeration en = null;
047:
048:            public OMVector() {
049:                vertices = new Vector();
050:            }
051:
052:            public OMVector(int capacity) {
053:                vertices = new Vector(capacity);
054:            }
055:
056:            public/*synchronized*/void add(Object p) {
057:                vertices.addElement(p);
058:                ++size_;
059:            }
060:
061:            public/*synchronized*/void add(Object[] pts, boolean decompose) {
062:                for (int i = 0; i < pts.length; i++)
063:                    vertices.addElement(pts[i]);
064:                size_ = vertices.size();
065:            }
066:
067:            public/*synchronized*/void add(OMVector v) {
068:                vertices.addElement(v);
069:                ++size_;
070:            }
071:
072:            public/*synchronized*/void add(OMVector v, boolean decompose) {
073:                v.resetEnumerator();
074:                while (v.hasMoreElements())
075:                    vertices.addElement(v.nextElement(true));
076:                size_ = vertices.size();
077:            }
078:
079:            public/*synchronized*/void insertAt(Object p, int index) {
080:                vertices.insertElementAt(p, index);
081:                ++size_;
082:            }
083:
084:            public/*synchronized*/boolean remove(Object p) {
085:                boolean removed = vertices.removeElement(p);
086:                if (removed)
087:                    --size_;
088:                return removed;
089:            }
090:
091:            public/*synchronized*/void removeAt(int index) {
092:                vertices.removeElementAt(index);
093:                --size_;
094:            }
095:
096:            public/*synchronized*/int size() {
097:                return size_/*vertices.size()*/;
098:            }
099:
100:            /** nextElement(true) - returns the next element, wrap if we've
101:                reached the end of the array, or return null if array is zero
102:                sized. */
103:            public/*synchronized*/Object nextElement(boolean wrap) {
104:                if (size_ == 0)
105:                    return null;
106:
107:                while (true) {
108:                    try {
109:                        return en.nextElement();
110:                    } catch (NoSuchElementException e) {
111:                        resetEnumerator();
112:                        continue;
113:                    }
114:                }
115:            }
116:
117:            /** nextElement() - returns the next element or throws an
118:                exception. */
119:            public/*synchronized*/Object nextElement()
120:                    throws NoSuchElementException {
121:                return en.nextElement();
122:            }
123:
124:            /** elementAt() - returns object at the specified index or an
125:                exception is thrown */
126:            public/*synchronized*/Object elementAt(int index) {
127:                return vertices.elementAt(index);
128:            }
129:
130:            /** hasMoreElements() */
131:            public/*synchronized*/boolean hasMoreElements() {
132:                return en.hasMoreElements();
133:            }
134:
135:            /** previousElement() - returns elements starting at the end of
136:                the vector and working to the front. Behavior is undefined if
137:                you add to or remove elements from the Vector while you're
138:                iterating. does not wrap the index. */
139:            public/*synchronized*/Object previousElement() {
140:                return vertices.elementAt(tail_--);
141:            }
142:
143:            /** previousElement(wrap) - returns elements starting at the end
144:                of the vector, working to the front.  Behavior is undefined if
145:                you add to or remove elements from the Vector while you're
146:                iterating.  wraps the index. */
147:            public/*synchronized*/Object previousElement(boolean wrap) {
148:                Object obj = vertices.elementAt(tail_--);
149:                if (tail_ < 0)
150:                    tail_ = size_ - 1;
151:                return obj;
152:            }
153:
154:            /** resetEnumerator() - resets the Enumerator to a starting
155:                state. the state of the enumerator is invalid until the first
156:                call to resetEnumerator(). */
157:            public/*synchronized*/void resetEnumerator() {
158:                en = vertices.elements();
159:                tail_ = size_ - 1;
160:            }
161:        }
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