diff options
Diffstat (limited to 'spss/server/serverlib/src/main/java/at/gv/egovernment/moa/spss/server/transaction/TransactionIDGenerator.java')
-rw-r--r-- | spss/server/serverlib/src/main/java/at/gv/egovernment/moa/spss/server/transaction/TransactionIDGenerator.java | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/spss/server/serverlib/src/main/java/at/gv/egovernment/moa/spss/server/transaction/TransactionIDGenerator.java b/spss/server/serverlib/src/main/java/at/gv/egovernment/moa/spss/server/transaction/TransactionIDGenerator.java deleted file mode 100644 index b173308fc..000000000 --- a/spss/server/serverlib/src/main/java/at/gv/egovernment/moa/spss/server/transaction/TransactionIDGenerator.java +++ /dev/null @@ -1,75 +0,0 @@ -/* - * Copyright 2003 Federal Chancellery Austria - * MOA-SPSS has been developed in a cooperation between BRZ, the Federal - * Chancellery Austria - ICT staff unit, and Graz University of Technology. - * - * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by - * the European Commission - subsequent versions of the EUPL (the "Licence"); - * You may not use this work except in compliance with the Licence. - * You may obtain a copy of the Licence at: - * http://www.osor.eu/eupl/ - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the Licence is distributed on an "AS IS" basis, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the Licence for the specific language governing permissions and - * limitations under the Licence. - * - * This product combines work with different licenses. See the "NOTICE" text - * file for details on the various modules and licenses. - * The "NOTICE" text file is part of the distribution. Any derivative works - * that you distribute must include a readable copy of the "NOTICE" text file. - */ - - -package at.gv.egovernment.moa.spss.server.transaction; - - -/** - * A generator for unique transaction IDs. - * - * <p>The transaction IDs are of the form "<base>-<counter>", where: - * <ul> - * <li><code>base</code> is initialized with the system time when this class is - * being loaded</li> - * <li><code>counter</code> is incremented sequentially on each call to - * <code>nextID()</code></li> - * </ul> - * </p> - * - * <p> Assuming that it is highly unlikely that MOA servers are started at - * exactly the same time instant, the mechanism provided by this class should - * guarantee unique transaction IDs across multiple restarts and/or instances of - * the server.</p> - * - * @author Patrick Peck - * @author Stefan Knirsch - */ -public class TransactionIDGenerator { - - /** Request sequence number. */ - private static long counter = 0; - /** The base value to which to append the sequence number. */ - private static String base = null; - - /** - * Set up the initial base value. - */ - static { - synchronized (TransactionIDGenerator.class) { - base = Long.toString(System.currentTimeMillis()); - } - } - - /** - * Returns the next transaction ID. - * - * @return The next transaction ID. - */ - public static synchronized String nextID() { - counter++; - - return (base + "-" + counter); - } - -} |