Examples of java.rmi.server.UID

java.rmi.server.UID
A UID represents an identifier that is unique over time with respect to the host it is generated on, or one of 2¹⁶ "well-known" identifiers.
The {@link #UID()} constructor can be used to generate anidentifier that is unique over time with respect to the host it is generated on. The {@link #UID(short)} constructor can be used tocreate one of 2¹⁶ well-known identifiers.
A UID instance contains three primitive values:
- unique, an int that uniquely identifies the VM that this UID was generated in, with respect to its host and at the time represented by the time value (an example implementation of the unique value would be a process identifier), or zero for a well-known UID
- time, a long equal to a time (as returned by {@link System#currentTimeMillis()}) at which the VM that this UID was generated in was alive, or zero for a well-known UID
- count, a short to distinguish UIDs generated in the same VM with the same time value
An independently generated UID instance is unique over time with respect to the host it is generated on as long as the host requires more than one millisecond to reboot and its system clock is never set backward. A globally unique identifier can be constructed by pairing a UID instance with a unique host identifier, such as an IP address. @author Ann Wollrath @author Peter Jones @version 1.24, 06/02/23 @since JDK1.1

                id = "A" + idCount++; // + rand.nextLong();
            }
        } else if (!UIDok) {
            id = java.util.UUID.randomUUID().toString(); 
        } else {
            id = (new UID()).toString();
        }
    }

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      public void begin() throws NotSupportedException, SystemException
      {
         try
         {
            Invocation inv = infrastructure.createClientUserTransactionInvocation(null, null, invoker);
            UID uid = (UID) new MockClientUserTransactionStickyInterceptor(invoker).invoke(inv);
            tpcf.setUid(uid);
         }
         catch (Throwable e)
         {
            throw new RuntimeException("Exception during mock UT.begin", e);

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   {
      log.debug("transactional successfull calls [policy=" + policyClass + ",newProxiesInBetweenTransactions=" + newProxiesInBetweenTransactions + "]");
      
      try
      {
         UID uid;
         
         createNewProxies(0, policyClass, true);


         /* Simulate client user transaction */
         uid = new UID();         
         transactionalMockUtils.getTpcf().setUid(uid);
         performCalls(3, null, policyClass);
         
         if (newProxiesInBetweenTransactions)
         {
            createNewProxies(0, policyClass, false);
         }
         
         /* Simulate transaction interceptor */
         uid = new UID();
         Transaction tx = new MockTransaction();
         transactionalMockUtils.getTpcf().setUid(uid);
         transactionalMockUtils.getTpci().setTransaction(tx);
         performCalls(3, tx, policyClass);                  
      }

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     * address can be obtained for this host that is unique and constant
     * for the lifetime of this object.
     */
    public VMID() {
        addr = randomBytes;
        uid = new UID();
    }

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   public class ClientUserTransactionService implements ClientUserTransactionServiceMBean
   {
      public Object invoke(Invocation invocation) throws Exception
      {
         // Return new tpc -> only begin() calls really tested as they set the sticky target
         return new UID();
      }

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            InternetAddress from = new InternetAddress(myAddress);


            msg.setFrom(from);
            msg.setSubject(subjectField);


            UID msgUID = new UID();


            uidString = msgUID.toString();


            msg.setHeader("X-Mailer", uidString);


            msg.setSentDate(new Date());

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     * address can be obtained for this host that is unique and constant
     * for the lifetime of this object.  <p>
     */
    public VMID() {
  addr = localAddr;
  uid = new UID();
    }

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  private String initBridgeRequestScope(ActionRequest request, ActionResponse response)
  {


    // Generate an RMI UID, which is a unique identifier WITHIN the local
    // host. This will be used as the new lifecyleID
    UID uid = new UID();
    String requestScopeId = qualifyScopeId(mPortletConfig.getPortletName(),
                                           request.getPortletSession(true).getId(),
                                           request.getPortletMode().toString(),
                                           uid.toString());


    // set in response render parameter so will receive in future calls
    // however don't store internally until there is specific state to
    // manage
    response.setRenderParameter(REQUEST_SCOPE_ID_RENDER_PARAM, requestScopeId);

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   * Generates a UUID.
   * 
   * @return the UUID
   */
  public static String generate() {
    String uuid = mHostId + new UID().toString();
    // System.out.println("UUID: " + uuid);
    return uuid;
  }

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   *  unique name for this component.
   *
   */
  public UimaContext_ImplBase() {
    //  Generate unique name for this component
    uniqueIdentifier = new UID().toString();
    //  Strip colons and un
    uniqueIdentifier = uniqueIdentifier.replaceAll(":", "");
    uniqueIdentifier = uniqueIdentifier.replaceAll("-", "");
  }

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