Callout


1   /******************************************************************************
2    * The contents of this file are subject to the   Compiere License  Version 1.1
3    * ("License"); You may not use this file except in compliance with the License
4    * You may obtain a copy of the License at http://www.compiere.org/license.html
5    * Software distributed under the License is distributed on an  "AS IS"  basis,
6    * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
7    * the specific language governing rights and limitations under the License.
8    * The Original Code is                  Compiere  ERP & CRM  Business Solution
9    * The Initial Developer of the Original Code is Jorg Janke  and ComPiere, Inc.
10   * Portions created by Jorg Janke are Copyright (C) 1999-2001 Jorg Janke, parts
11   * created by ComPiere are Copyright (C) ComPiere, Inc.;   All Rights Reserved.
12   * Contributor(s): ______________________________________.
13   *****************************************************************************/
14  package org.compiere.model;
15  
16  import java.util.*;
17  
18  /**
19   *  Callout Interface for Callout.
20   *  Used in MTab and ImpFormatRow
21   *
22   *  @author     Jorg Janke
23   *  @version    $Id: Callout.java,v 1.3 2002/08/12 01:55:12 danb Exp $
24   */
25  public interface Callout
26  {
27      /**
28       *  Start Callout.
29       *  <p>
30       *  Callout's are used for cross field validation and setting values in other fields
31       *  when returning a non empty (error message) string, an exception is raised
32       *  <p>
33       *  When invoked, the Tab model has the new value!
34       *
35       *  @param ctx      Context
36       *  @param method   Method name
37       *  @param WindowNo current Window No
38       *  @param mTab     Model Tab
39       *  @param mField   Model Field
40       *  @param value    The new value
41       *  @param oldValue The old value
42       *  @return Error message or ""
43       */
44      public String   start (Properties ctx, String   method, int WindowNo,
45          MTab mTab, MField mField, Object   value, Object   oldValue);
46  
47      /**
48       *  Conversion Rules.
49       *  Convert a String
50       *
51       *  @param method   in notation User_Function
52       *  @param value    the value
53       *  @return converted String or Null if no method found
54       */
55      public String   convert (String   method, String   value);
56  
57  }   //  callout
58
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