[jbosscache-commits] JBoss Cache SVN: r7969 - core/trunk/src/main/java/org/jboss/cache/mvcc.

Author: manik.surtani(a)jboss.com Date: 2009-04-02 07:30:07 -0400 (Thu, 02 Apr 2009) New Revision: 7969 Modified: core/trunk/src/main/java/org/jboss/cache/mvcc/MVCCNodeHelper.java Log: JBCACHE-1497 When adding node, CacheLoaderInterceptor locks child node before MVCCLockingInterceptor locks parent Modified: core/trunk/src/main/java/org/jboss/cache/mvcc/MVCCNodeHelper.java =================================================================== --- core/trunk/src/main/java/org/jboss/cache/mvcc/MVCCNodeHelper.java 2009-04-02 10:04:04 UTC (rev 7968) +++ core/trunk/src/main/java/org/jboss/cache/mvcc/MVCCNodeHelper.java 2009-04-02 11:30:07 UTC (rev 7969) @@ -179,7 +179,13 @@ * @throws InterruptedException if interrupted */ @SuppressWarnings("unchecked") - public ReadCommittedNode wrapNodeForWriting(InvocationContext context, Fqn fqn, boolean lockForWriting, boolean createIfAbsent, boolean includeInvalidNodes, boolean forRemoval, boolean force) throws InterruptedException { + public ReadCommittedNode wrapNodeForWriting(InvocationContext context, Fqn fqn, boolean lockForWriting, boolean createIfAbsent, boolean includeInvalidNodes, boolean forRemoval, boolean force) throws InterruptedException + { + return wrapNodeForWriting(context, fqn, lockForWriting, createIfAbsent, includeInvalidNodes, forRemoval, force, false); + } + + public ReadCommittedNode wrapNodeForWriting(InvocationContext context, Fqn fqn, boolean lockForWriting, boolean createIfAbsent, boolean includeInvalidNodes, boolean forRemoval, boolean force, boolean childIsNull) throws InterruptedException + { Fqn parentFqn = null; ReadCommittedNode n = (ReadCommittedNode) context.lookUpNode(fqn); if (createIfAbsent && n != null && n.isNullNode()) n = null; @@ -242,13 +248,13 @@ if (n == null && force) { parentFqn = fqn.getParent(); - if (isParentLockNeeded(parentFqn, context)) wrapNodeForWriting(context, parentFqn, true, false, includeInvalidNodes, false, force); + if (isParentLockNeeded(parentFqn, context) && !childIsNull) wrapNodeForWriting(context, parentFqn, true, false, includeInvalidNodes, false, force, true); acquireLock(context, fqn); } // now test if we need to lock the parent as well. - if ((n != null || force) && forRemoval && (parentFqn == null ? parentFqn = fqn.getParent() : parentFqn) != null && isParentLockNeeded(parentFqn, context)) - wrapNodeForWriting(context, parentFqn, true, false, includeInvalidNodes, false, force); + if ((n != null || force) && forRemoval && (parentFqn == null ? parentFqn = fqn.getParent() : parentFqn) != null && isParentLockNeeded(parentFqn, context) && !childIsNull) + wrapNodeForWriting(context, parentFqn, true, false, includeInvalidNodes, false, force, n == null); return n; }