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Java > Open Source Codes > org > ofbiz > minilang > method > entityops > MakeNextSeqId


1 /*
2  * $Id: MakeNextSeqId.java 5462 2005-08-05 18:35:48Z jonesde $
3  *
4  * Copyright (c) 2001-2005 The Open For Business Project - www.ofbiz.org
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included
14  * in all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
19  * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
20  * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
21  * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
22  * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23  */
24 package org.ofbiz.minilang.method.entityops;
25
26 import org.ofbiz.base.util.Debug;
27 import org.ofbiz.base.util.UtilValidate;
28 import org.ofbiz.entity.GenericValue;
29 import org.ofbiz.minilang.SimpleMethod;
30 import org.ofbiz.minilang.method.ContextAccessor;
31 import org.ofbiz.minilang.method.MethodContext;
32 import org.ofbiz.minilang.method.MethodOperation;
33 import org.w3c.dom.Element JavaDoc;
34
35 /**
36  * Look at existing values for a sub-entity with a sequenced secondary ID, and get the highest plus 1
37  *
38  * @author <a HREF="mailto:jonesde@ofbiz.org">David E. Jones</a>
39  * @version $Rev: 5462 $
40  * @since 2.0
41  */
42 public class MakeNextSeqId extends MethodOperation {
43
44     public static final String JavaDoc module = MakeNextSeqId.class.getName();
45
46     String JavaDoc seqFieldName;
47     ContextAccessor valueAcsr;
48     String JavaDoc numericPaddingStr;
49     String JavaDoc incrementByStr;
50
51     public MakeNextSeqId(Element JavaDoc element, SimpleMethod simpleMethod) {
52         super(element, simpleMethod);
53         seqFieldName = element.getAttribute("seq-field-name");
54         valueAcsr = new ContextAccessor(element.getAttribute("value-name"));
55
56         numericPaddingStr = element.getAttribute("numeric-padding");
57         incrementByStr = element.getAttribute("increment-by");
58     }
59
60     public boolean exec(MethodContext methodContext) {
61         String JavaDoc seqFieldName = methodContext.expandString(this.seqFieldName);
62         String JavaDoc numericPaddingStr = methodContext.expandString(this.numericPaddingStr);
63         String JavaDoc incrementByStr = methodContext.expandString(this.incrementByStr);
64         int numericPadding = 5;
65         int incrementBy = 1;
66         try {
67             if (UtilValidate.isNotEmpty(numericPaddingStr)) {
68                 numericPadding = Integer.parseInt(numericPaddingStr);
69             }
70         } catch (Exception JavaDoc e) {
71             Debug.logError(e, "numeric-padding format invalid for [" + numericPaddingStr + "]", module);
72         }
73         try {
74             if (UtilValidate.isNotEmpty(incrementByStr)) {
75                 incrementBy = Integer.parseInt(incrementByStr);
76             }
77         } catch (Exception JavaDoc e) {
78             Debug.logError(e, "increment-by format invalid for [" + incrementByStr + "]", module);
79         }
80
81         GenericValue value = (GenericValue) valueAcsr.get(methodContext);
82         methodContext.getDelegator().setNextSubSeqId(value, seqFieldName, numericPadding, incrementBy);
83         
84         return true;
85     }
86
87     public String JavaDoc rawString() {
88         // TODO: something more than the empty tag
89 return "<make-next-seq-id/>";
90     }
91     public String JavaDoc expandedString(MethodContext methodContext) {
92         // TODO: something more than a stub/dummy
93 return this.rawString();
94     }
95 }
96
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