DocumentNumberAllocator


1   package net.sf.saxon.om;
2   
3   import java.io.Serializable  ;
4   
5   /**
6    * This class (which has one instance per Configuration) is used to allocate unique document
7    * numbers. It's a separate class so that it can act as a monitor for synchronization
8    */
9   public class DocumentNumberAllocator implements Serializable   {
10  
11      private int nextDocumentNumber = 0;
12  
13      /**
14       * Allocate a unique document number
15       * @return a unique document number
16       */
17  
18      public synchronized int allocateDocumentNumber() {
19          return nextDocumentNumber++;
20      }
21  }
22  
23  //
24  // The contents of this file are subject to the Mozilla Public License Version
25  // 1.0 (the "License");
26  // you may not use this file except in compliance with the License. You may
27  // obtain a copy of the
28  // License at http://www.mozilla.org/MPL/
29  //
30  // Software distributed under the License is distributed on an "AS IS" basis,
31  // WITHOUT WARRANTY OF ANY KIND, either express or implied.
32  // See the License for the specific language governing rights and limitations
33  // under the License.
34  //
35  // The Original Code is: all this file.
36  //
37  // The Initial Developer of the Original Code is Michael Kay, with extensive
38  // rewriting by Wolfgang Hoschek
39  //
40  // Portions created by (your name) are Copyright (C) (your legal entity). All
41  // Rights Reserved.
42  //
43  // Contributor(s): none.
44  //
45

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