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.algorithm;
051:
052: import java.util.LinkedList;
053: import com.projity.pm.assignment.HasTimeDistributedData;
054: import com.projity.pm.assignment.functor.AssignmentFieldClosureCollection;
055: import com.projity.pm.assignment.functor.DateAtValueFunctor;
056: import com.projity.pm.time.HasStartAndEnd;
057:
058: /**
059: * A reverse query is one which calculates a date given a value instead of vice-versa.
060: */
061: public class ReverseQuery {
062: private Object type;
063: private LinkedList fieldSet = new LinkedList();
064: private LinkedList selectFromSet = new LinkedList();
065: private LinkedList groupBySet = new LinkedList();
066: private HasTimeDistributedData root;
067: private double valueToFind;
068: private boolean allowDefaultAssignments = false;
069:
070: /**
071: *
072: */
073: private ReverseQuery(Object type, HasTimeDistributedData root,
074: double valueToFind) {
075: super ();
076: this .type = type;
077: this .root = root;
078: this .valueToFind = valueToFind;
079: }
080:
081: public static long getDateAtValue(Object type,
082: HasTimeDistributedData root, double valueToFind,
083: boolean allowDefaultAssignments) {
084: ReverseQuery reverseQuery = getInstance(type, root, valueToFind);
085: reverseQuery.allowDefaultAssignments = allowDefaultAssignments;
086: return reverseQuery.getDate();
087: }
088:
089: public static ReverseQuery getInstance(Object type,
090: HasTimeDistributedData root, double valueToFind) {
091: return new ReverseQuery(type, root, valueToFind);
092: }
093:
094: /**
095: * @return Returns the type.
096: */
097: public Object getType() {
098: return type;
099: }
100:
101: public void addField(Object field) {
102: if (field != null)
103: fieldSet.add(field);
104: }
105:
106: public void addSelectFrom(Object selectFrom) {
107: if (selectFrom != null)
108: selectFromSet.add(selectFrom);
109: }
110:
111: public void addGroupBy(Object groupBy) {
112: if (groupBy != null)
113: groupBySet.add(groupBy);
114: }
115:
116: /* (non-Javadoc)
117: * @see com.projity.algorithm.DoubleValue#getValue()
118: */
119: public long getDate() {
120: root.buildReverseQuery(this );
121: Query query = Query.getInstance();
122: DateAtValueFunctor dateAtValue = DateAtValueFunctor
123: .getInstance(valueToFind,
124: AssignmentFieldClosureCollection
125: .getInstance(fieldSet));
126:
127: IntervalGenerator interval = null;
128: if (!groupBySet.isEmpty())
129: interval = IntervalGeneratorSet.getInstance(groupBySet);
130: query.selectFrom(selectFromSet).groupBy(interval).action(
131: dateAtValue).execute();
132: return dateAtValue.getDate();
133: }
134:
135: // public static void iterate(Object type,HasTimeDistributedData root) {
136: // ReverseQuery reverseQuery = getInstance(type, root, 0);
137: // reverseQuery.iterate();
138: // }
139: //
140: //
141: // private void iterate() {
142: // root.buildReverseQuery(this);
143: // Query query = Query.getInstance();
144: // PrintValueFunctor functor = PrintValueFunctor.getInstance(ClosureCollectionSum.getInstance(AssignmentFieldClosureCollection.getInstance(fieldSet)));
145: // query.selectFrom(selectFromSet)
146: // .groupBy(IntervalGeneratorSet.getInstance(groupBySet))
147: // .action(functor)
148: // .execute();
149: // }
150:
151: public final boolean isAllowDefaultAssignments() {
152: return allowDefaultAssignments;
153: }
154:
155: public final void setAllowDefaultAssignments(
156: boolean allowDefaultAssignments) {
157: this.allowDefaultAssignments = allowDefaultAssignments;
158: }
159: }
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