01: /*
02: * <copyright>
03: *
04: * Copyright 1997-2004 BBNT Solutions, LLC
05: * under sponsorship of the Defense Advanced Research Projects
06: * Agency (DARPA).
07: *
08: * You can redistribute this software and/or modify it under the
09: * terms of the Cougaar Open Source License as published on the
10: * Cougaar Open Source Website (www.cougaar.org).
11: *
12: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
13: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
14: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
15: * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
16: * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
17: * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
18: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
22: * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23: *
24: * </copyright>
25: */
26: package org.cougaar.glm.execution.common;
27:
28: import java.io.IOException;
29:
30: import org.cougaar.core.util.UID;
31:
32: /**
33: * State a constraint between two tasks,
34: **/
35: public class ConstraintElement extends EGObjectBase implements EGObject {
36: public TaskEventId thatEventId;
37: public TaskEventId this EventId;
38:
39: public ConstraintElement(UID this TaskUID, int this AspectType,
40: UID thatTaskUID, int thatAspectType) {
41: this EventId = new TaskEventId(this TaskUID, this AspectType);
42: thatEventId = new TaskEventId(thatTaskUID, thatAspectType);
43: }
44:
45: ConstraintElement() {
46: }
47:
48: public void write(LineWriter writer) throws IOException {
49: writer.writeUID(this EventId.theTaskUID);
50: writer.writeInt(this EventId.theAspectType);
51: writer.writeUID(thatEventId.theTaskUID);
52: writer.writeInt(thatEventId.theAspectType);
53: }
54:
55: public void read(LineReader reader) throws IOException {
56: try {
57: this EventId = new TaskEventId(reader.readUID(), reader
58: .readInt());
59: thatEventId = new TaskEventId(reader.readUID(), reader
60: .readInt());
61: } catch (IOException ioe) {
62: System.err
63: .println("IOException reading ConstraintElement: "
64: + ioe);
65: throw ioe;
66: }
67: }
68:
69: public String toString() {
70: return this EventId.toString() + ":" + thatEventId.toString();
71: }
72: }
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