From 1591a55963778407b118bad8b13658d9f0a71ca7 Mon Sep 17 00:00:00 2001
From: orbiter <orbiter@6c8d7289-2bf4-0310-a012-ef5d649a1542>
Date: Mon, 21 Aug 2006 01:51:27 +0000
Subject: [PATCH] added object cache miss-cache use for remove method

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@2434 6c8d7289-2bf4-0310-a012-ef5d649a1542
---
 source/de/anomic/kelondro/kelondroTree.java | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/source/de/anomic/kelondro/kelondroTree.java b/source/de/anomic/kelondro/kelondroTree.java
index 395fefb01..ec9790be2 100644
--- a/source/de/anomic/kelondro/kelondroTree.java
+++ b/source/de/anomic/kelondro/kelondroTree.java
@@ -635,6 +635,12 @@ public class kelondroTree extends kelondroRecords implements kelondroIndex {
     
     // Removes the mapping for this key from this map if present (optional operation).
     public kelondroRow.Entry remove(byte[] key) throws IOException {
+        
+        // check with miss cache of object cache
+        // if we know that the object does not exist, then we don't need to lookup in the file
+        if ((objectCache != null) && (objectCache.has(key) == -1)) return null;
+            
+        // delete from database
         synchronized(writeSearchObj) {
             if (objectCache != null) objectCache.remove(key);
             writeSearchObj.process(key);
@@ -644,6 +650,7 @@ public class kelondroTree extends kelondroRecords implements kelondroIndex {
                 remove(result, writeSearchObj.getParent());
                 return values;
             } else {
+                if (objectCache != null) objectCache.hasnot(key);
                 return null;
             }
         }