--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javaextensions/midprms_db/javasrc/com/nokia/mj/impl/rms/RecordIdCache.java	Mon May 03 12:27:20 2010 +0300
@@ -0,0 +1,97 @@
+/*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: RecordIdCache
+*
+*/
+
+
+package com.nokia.mj.impl.rms;
+import javax.microedition.rms.*;
+
+/**
+ * RecordIdCache saves all record id's in the store, which is used by
+ * record enumerations.
+ */
+class RecordIdCache implements RecordListener
+{
+    private int[] iRecordIds;
+
+    public RecordIdCache(Rms aRms)
+    {
+        iRecordIds = new int[0];
+        // cache listener must be the first RecordListener registered
+        // so that the other listeners get up-to-date information
+        aRms.addRecordListener(this);
+    }
+
+    public int[] getRecordIds()
+    {
+        if (iRecordIds.length == 0)
+        {
+            return null;
+        }
+        return iRecordIds;
+    }
+
+    public void saveRecordIds(int[] aRecordIds)
+    {
+        if (aRecordIds == null)
+        {
+            iRecordIds = new int[0];
+        }
+        else
+        {
+            iRecordIds = aRecordIds;
+        }
+    }
+
+    public void recordAdded(RecordStore aRecordStore, int aRecordId)
+    {
+        removeRecordId(aRecordId);
+        insertRecordId(aRecordId);
+    }
+
+    public void recordChanged(RecordStore aRecordStore, int aRecordId)
+    {
+    }
+
+    public void recordDeleted(RecordStore aRecordStore, int aRecordId)
+    {
+        removeRecordId(aRecordId);
+    }
+
+    private void removeRecordId(int aRecordId)
+    {
+        for (int i = 0; i < iRecordIds.length; i++)
+        {
+            if (aRecordId == iRecordIds[i])
+            {
+                int[] temp = new int[iRecordIds.length - 1];
+                System.arraycopy(iRecordIds, 0, temp, 0, i);
+                System.arraycopy(iRecordIds, i+1, temp, i, iRecordIds.length - i - 1);
+                iRecordIds = temp;
+            }
+        }
+    }
+
+    private void insertRecordId(int aRecordId)
+    {
+        int[] temp = new int[iRecordIds.length + 1];
+        temp[0] = aRecordId;
+        System.arraycopy(iRecordIds, 0, temp, 1, iRecordIds.length);
+        iRecordIds = temp;
+    }
+
+}
+