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 com.projity.algorithm.CalculationVisitor;
053: import com.projity.algorithm.DoubleValue;
054: import com.projity.pm.time.HasStartAndEnd;
055:
056: /**
057: * Will determine the date when a value is achieved. The process is rather tricky since there are fixed costs
058: * to take into account. This fuctor is used when calculating reverse queries.
059: */
060: public class ClosureCollectionSum implements CalculationVisitor,
061: DoubleValue {
062: AssignmentFieldClosureCollection childList;
063: double value;
064: double total;
065:
066: public static ClosureCollectionSum getInstance(
067: AssignmentFieldClosureCollection childList) {
068: return new ClosureCollectionSum(childList);
069: }
070:
071: /**
072: * Constructor
073: */
074: private ClosureCollectionSum(
075: AssignmentFieldClosureCollection childList) {
076: super ();
077: total = 0;
078: reset();
079: this .childList = childList;
080: }
081:
082: /* (non-Javadoc)
083: * @see com.projity.algorithm.CalculationVisitor#reset()
084: */
085: public void initialize() {
086: reset();
087: }
088:
089: public void reset() {
090: value = 0;
091: }
092:
093: /**
094: * Increment the subtotal by adding up all child functors. If the value is achieved, calculate the
095: * instant in the range at which it occurs.
096: */
097: public void execute(Object object) {
098: HasStartAndEnd interval = (HasStartAndEnd) object;
099: value = childList.getValue();
100: total += value;
101: }
102:
103: /* (non-Javadoc)
104: * @see com.projity.algorithm.CalculationVisitor#isCumulative()
105: */
106: public boolean isCumulative() {
107: // TODO Auto-generated method stub
108: return false;
109: }
110:
111: /**
112: * @return Returns the value.
113: */
114: public double getValue() {
115: return childList.getValue();
116: }
117:
118: /**
119: * @return Returns the total.
120: */
121: public double getTotal() {
122: return total;
123: }
124:
125: /**
126: * @see java.lang.Object#toString()
127: */
128: public String toString() {
129: return "" + getValue() + " " + getTotal();
130: }
131:
132: }
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