Let the EHCache adapter be a little more configurable.

2009-01-10 01:47:11 +00:00
parent a5de1295f9
commit 062a8efcac
1 changed files with 79 additions and 0 deletions
@@ -0,0 +1,79 @@
+//
+// $Id: EHCacheAdapter.java 325 2008-11-16 08:03:33Z samskivert $
+//
+// Depot library - a Java relational persistence library
+// Copyright (C) 2006-2008 Michael Bayne and Pär Winzell
+//
+// This library is free software; you can redistribute it and/or modify it
+// under the terms of the GNU Lesser General Public License as published
+// by the Free Software Foundation; either version 2.1 of the License, or
+// (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+package com.samskivert.depot;
+
+public class EHCacheConfig
+{
+    /** The maximum number of cached records to keep in memory. */
+    public int elementsInMemory;
+
+    /** Whether or not to overflow records to disk. */
+    public boolean overflowToDisk;
+
+    /** How long to keep a record in the cache after it's been stored or updated. */
+    public int timeToLiveSeconds;
+
+    /** How long to keep a record in the cache after it's last accessed. */
+    public int timeToIdleSeconds;
+
+    /** Whether or not this is a distributed cache. Setting this to true makes various demands
+     * on your ehcache.xml configuration. */
+    public boolean distributed;
+
+    /** If true, newly cached records will be serialized and sent to all peer caches. */
+    public boolean sendNewRecordsToPeers;
+
+    /** If true, modification of a cached record will remove any cached versions on peers. */
+    public boolean invalidateUpdatedRecordsOnPeers;
+
+    /** If true, modification of a cached record will send the new version to all peer caches. */
+    public boolean sendUpdatedRecordsToPeers;
+
+    /** If true, removal of a cached record will remove any cached versions on peers. */
+    public boolean invalidateRemovedRecordsOnPeers;
+
+    /** How often to perform replication, in milliseconds. */
+    public int replicationInterval;
+
+    public EHCacheConfig (int elementsInMemory, boolean overflowToDisk, int timeToLiveSeconds,
+        int timeToIdleSeconds, boolean distributed, boolean sendNewRecordsToPeers,
+        boolean sendUpdatedRecordsToPeers, boolean invalidateUpdatedRecordsOnPeers,
+        boolean invalidateRemovedRecordsOnPeers, int replicationInterval)
+    {
+        this.elementsInMemory = elementsInMemory;
+        this.overflowToDisk = overflowToDisk;
+        this.timeToLiveSeconds = timeToLiveSeconds;
+        this.timeToIdleSeconds = timeToIdleSeconds;
+        this.distributed = distributed;
+        this.sendNewRecordsToPeers = sendNewRecordsToPeers;
+        this.sendUpdatedRecordsToPeers = sendUpdatedRecordsToPeers;
+        this.invalidateUpdatedRecordsOnPeers = invalidateUpdatedRecordsOnPeers;
+        this.invalidateRemovedRecordsOnPeers = invalidateRemovedRecordsOnPeers;
+        this.replicationInterval = replicationInterval;
+    }
+
+    public EHCacheConfig (int elementsInMemory, boolean overflowToDisk, int timeToLiveSeconds,
+        int timeToIdleSeconds)
+    {
+        this(elementsInMemory, overflowToDisk, timeToLiveSeconds, timeToIdleSeconds, false,
+            false, false, false, false, -1);
+    }
+}