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.pm.assignment.functor;
051:
052: import java.util.Collection;
053: import java.util.Iterator;
054: import java.util.LinkedList;
055:
056: import org.apache.commons.collections.Closure;
057: import org.apache.commons.collections.functors.ChainedClosure;
058:
059: /**
060: *
061: */
062: public class AssignmentFieldClosureCollection extends
063: AssignmentFieldFunctor {
064: Collection closures;
065: Closure chain = null;
066: AssignmentFieldFunctor aNonZeroFunctor = null;
067:
068: public static AssignmentFieldClosureCollection getInstance(
069: AssignmentFieldFunctor child) {
070: return new AssignmentFieldClosureCollection(child);
071: }
072:
073: public static AssignmentFieldClosureCollection getInstance(
074: Collection closures) {
075: return new AssignmentFieldClosureCollection(closures);
076: }
077:
078: private AssignmentFieldClosureCollection(
079: AssignmentFieldFunctor child) {
080: super ();
081: closures = new LinkedList();
082: closures.add(child);
083: chain = new ChainedClosure(new Closure[] { child });
084: }
085:
086: private AssignmentFieldClosureCollection(Collection closures) {
087: this .closures = closures;
088: chain = ChainedClosure.getInstance(closures);
089: }
090:
091: /* (non-Javadoc)
092: * @see org.apache.commons.collections.Closure#execute(java.lang.Object)
093: */
094: public void execute(Object arg0) {
095: chain.execute(arg0);
096: }
097:
098: public void initialize() {
099: Iterator i = closures.iterator();
100: while (i.hasNext()) {
101: ((AssignmentFieldFunctor) i.next()).initialize();
102: }
103: }
104:
105: public double getFixedValue() {
106: value = 0;
107: Iterator i = closures.iterator();
108: AssignmentFieldFunctor current;
109: while (i.hasNext()) {
110: current = (AssignmentFieldFunctor) i.next();
111: if (current instanceof CostFunctor)
112: value += ((CostFunctor) current).getFixedValue();
113: }
114: return value;
115: }
116:
117: public double getValue() {
118: value = 0;
119: Iterator i = closures.iterator();
120: AssignmentFieldFunctor current;
121: aNonZeroFunctor = null;
122: while (i.hasNext()) {
123: current = (AssignmentFieldFunctor) i.next();
124: double v = current.getValue();
125: if (v != 0)
126: aNonZeroFunctor = current; // cache a non zero functor for later use
127: value += v;
128: }
129: return value;
130: }
131:
132: /**
133: * @return Returns the aNonZeroFunctor.
134: */
135: public AssignmentFieldFunctor getANonZeroFunctor() {
136: return aNonZeroFunctor;
137: }
138:
139: }
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