Refactored persistence for AVM. I'm guessing because I dropped a number of

unnecessary flushes seems about 20% snappier.


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/WCM-DEV2/root@3296 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/avm/hibernate/IssuerDAOHibernate.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2006 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
+ * either express or implied. See the License for the specific
+ * language governing permissions and limitations under the
+ * License.
+ */
+
+package org.alfresco.repo.avm.hibernate;
+
+
+import org.alfresco.repo.avm.IssuerDAO;
+import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
+
+/**
+ * DAO for Issuers.  Hibernate version.
+ * @author britt
+ */
+public class IssuerDAOHibernate extends HibernateDaoSupport implements
+        IssuerDAO
+{
+    /**
+     * Do nothing constructor.
+     */
+    public IssuerDAOHibernate()
+    {
+        super();
+    }
+    
+    public Long getContentIssuerValue()
+    {
+        return (Long)getSession().createQuery("select max(fc.id) from FileContentImpl fc").uniqueResult();
+    }
+
+    public Long getLayerIssuerValue()
+    {
+        return (Long)getSession().createQuery("select max(an.layerID) from AVMNodeImpl an").uniqueResult();
+    }
+
+    public Long getNodeIssuerValue()
+    {
+        return (Long)getSession().createQuery("select max(an.id) from AVMNodeImpl an").uniqueResult();
+    }
+}