svn commit: r1489341 - /jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/memory/ModifiedNodeState.java

[jukka]

Author: jukka
Date: Tue Jun  4 08:52:56 2013
New Revision: 1489341

URL: http://svn.apache.org/r1489341
Log:
OAK-853: Many child nodes: Diffing causes many calls to MicroKernel.getNodes

Optimization for the x.compareAgainstBaseState(x, ...) special case

Modified:
    
jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/memory/ModifiedNodeState.java

Modified: 
jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/memory/ModifiedNodeState.java
URL: 
http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/memory/ModifiedNodeState.java?rev=1489341&r1=1489340&r2=1489341&view=diff
==============================================================================
--- 
jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/memory/ModifiedNodeState.java
 (original)
+++ 
jackrabbit/oak/trunk/oak-core/src/main/java/org/apache/jackrabbit/oak/plugins/memory/ModifiedNodeState.java
 Tue Jun  4 08:52:56 2013
@@ -337,6 +337,10 @@ public class ModifiedNodeState extends A
     @Override
     public boolean compareAgainstBaseState(
             NodeState base, final NodeStateDiff diff) {
+        if (this == base) {
+            return true; // no differences
+        }
+
         for (Map.Entry<String, PropertyState> entry : properties.entrySet()) {
             PropertyState before = base.getProperty(entry.getKey());
             PropertyState after = entry.getValue();