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.grouping.core.summaries;
051:
052: import org.apache.commons.collections.Closure;
053:
054: import com.projity.field.Field;
055: import com.projity.field.FieldContext;
056: import com.projity.grouping.core.Node;
057: import com.projity.grouping.core.model.WalkersNodeModel;
058:
059: /**
060: * Traversal functor which goes recursively thru children
061: */
062: public abstract class NodeWalker extends SummaryVisitor {
063: protected SummaryVisitor visitor;
064: protected Closure closure;
065: protected WalkersNodeModel nodeModel;
066: private Node node = null;
067:
068: protected NodeWalker(Closure closure) {
069: this .closure = closure;
070: if (closure instanceof SummaryVisitor)
071: this .visitor = (SummaryVisitor) closure;
072: }
073:
074: public void setNodeModel(WalkersNodeModel nodeModel) {
075: this .nodeModel = nodeModel;
076: }
077:
078: public void addToSummary(Object value) {
079: visitor.addToSummary(value);
080: }
081:
082: public Object getSummary() {
083: execute(node);
084: return visitor.getSummary();
085: }
086:
087: public void reset() {
088: visitor.reset();
089: }
090:
091: /**
092: * @param node The node to set.
093: */
094: public void setNode(Node node) {
095: this .node = node;
096: }
097:
098: /* (non-Javadoc)
099: * @see com.projity.grouping.core.field.SummaryVisitor#setField(com.projity.field.Field)
100: */
101: public void setField(Field field) {
102: super .setField(field);
103: visitor.setField(field);
104: }
105:
106: /* (non-Javadoc)
107: * @see com.projity.grouping.core.field.SummaryVisitor#setContext(com.projity.field.FieldContext)
108: */
109: public void setContext(FieldContext context) {
110: super.setContext(context);
111: visitor.setContext(context);
112: }
113: }
|