org.apache.openjpa.lib.util
Class UUIDGenerator
java.lang.Object
   org.apache.openjpa.lib.util.UUIDGenerator
org.apache.openjpa.lib.util.UUIDGenerator
- public class UUIDGenerator 
- extends Object
UUID value generator.  Type 1 generator is based on the time-based generator  
 in the Apache Commons Id project:  http://jakarta.apache.org/commons/sandbox
 /id/uuid.html  The type 4 generator uses the standard Java UUID generator.
 The type 1 code has been vastly simplified and modified to replace the 
 ethernet address of the host machine with the IP, since we do not want to 
 require native libs and Java cannot access the MAC address directly.
 In spirit, implements the IETF UUID draft specification, found here:
 http://www1.ics.uci.edu/~ejw/authoring/uuid-guid/draft-leach-uuids-guids-01
 .txt
- Since:
- 0.3.3
- Author:
- Abe White, Kevin Sutter
 
 
| Method Summary | 
| static byte[] | createType1()
 | 
| static byte[] | next(int type)Return a unique UUID value.
 | 
| static String | nextHex(int type)Return the next unique uuid value as a 32-character hex string.
 | 
| static String | nextString(int type)Return the next unique uuid value as a 16-character string.
 | 
 
| Methods inherited from class java.lang.Object | 
| clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait | 
 
TYPE1
public static final int TYPE1
- See Also:
- Constant Field Values
TYPE4
public static final int TYPE4
- See Also:
- Constant Field Values
UUIDGenerator
public UUIDGenerator()
next
public static byte[] next(int type)
- Return a unique UUID value.
 
- 
 
createType1
public static byte[] createType1()
- 
 
nextString
public static String nextString(int type)
- Return the next unique uuid value as a 16-character string.
 
- 
 
nextHex
public static String nextHex(int type)
- Return the next unique uuid value as a 32-character hex string.
 
- 
 
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