User: user57 Date: 02/02/16 02:36:08 Added: src/main/org/jboss/ejb FastKey.java Log: o you belong here (well, more than where you were at least) Revision Changes Path 1.1 jboss/src/main/org/jboss/ejb/FastKey.java Index: FastKey.java =================================================================== /* * JBoss, the OpenSource J2EE webOS * * Distributable under LGPL license. * See terms of license at gnu.org. */ package org.jboss.ejb; /** * FastKey * * FastKey is a hack to enable fool proof and fast operation of caches for Entity * In the case of complex PK if a developer misses hash and equals the maps won't * properly work in jboss. Here we provide an wrapper to the DB Key and the hash * is over-written so that we never miss a hit in cache and have constant speed. * * @see org.jboss.ejb.plugins.NoPassivationInstanceCache.java * @author <a href="mailto:[EMAIL PROTECTED]";>Marc Fleury</a> * @version $Revision: 1.1 $ */ public class FastKey extends CacheKey implements java.io.Externalizable { // Constants ----------------------------------------------------- // Attributes ---------------------------------------------------- protected Long fastKey; // Static -------------------------------------------------------- // The seed for the fastKey id // MF FIXME: I suspect this is weak, if somebody ask for these all the time (heavy server) // then a server restart will recieve requests from previous servers and miss these... // Think more about it. private static long seedKey = System.currentTimeMillis(); // Constructors -------------------------------------------------- public FastKey() { // For externalization only } public FastKey(Object id) { super(id); // The FastKey is based on a counter this.fastKey = nextFastKey(); } // Public -------------------------------------------------------- public Object getPrimaryKey() { return id; } // Z implementation ---------------------------------------------- // Package protected --------------------------------------------- // Protected ----------------------------------------------------- protected Long nextFastKey() { //increment the timeStamp return new Long(seedKey++); } public void writeExternal(java.io.ObjectOutput out) throws java.io.IOException { out.writeObject(id); out.writeObject(fastKey); } public void readExternal(java.io.ObjectInput in) throws java.io.IOException, ClassNotFoundException { id = in.readObject(); fastKey = (Long) in.readObject(); } // Private ------------------------------------------------------- // HashCode and Equals over write -------------------------------- public int hashCode() { // the fastKey is always assigned return fastKey.intValue(); } public boolean equals(Object object) { if (object instanceof FastKey) { return fastKey.equals(((FastKey) object).fastKey); } return false; } // Inner classes ------------------------------------------------- }
_______________________________________________ Jboss-development mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-development
