Merged BRANCHES/DEV/V3.3-DAO-REFACTOR-4 to HEAD:

20682: SAIL-239 (SAIL-294) - optimise AVM removeLocks into single delete
              - also verified SQL syntax across MySQL, PostgreSQL, Oracle, MSSQL & DB2


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@20773 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/domain/avm/AVMLockDAO.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2005-2010 Alfresco Software Limited.
+ *
+ * This file is part of Alfresco
+ *
+ * Alfresco 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Alfresco 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 Alfresco. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.alfresco.repo.domain.avm;
+
+import java.util.Map;
+
+/**
+ * DAO service to remove AVM locks.
+ * 
+ * Added here for now, since this is currently an WCM-specific use-case to optimise lock removal
+ * based on matching path (bypassing the Attribute Service -> PropVal DAO). See also AbstractPropertyValueDAOImpl.
+ * Affected table is currently:
+ * 
+ *     <b>alf_prop_unique_ctx</b>
+ *
+ * @author janv
+ * @since 3.4
+ */
+public interface AVMLockDAO
+{
+    /**
+     * Remove all locks for a specific AVM store that start with a given directory path
+     * that also optionally match a map of lock data entries.
+     * 
+     * @param avmStore              the name of the AVM store
+     * @param dirPath               optional - start with given directory path or null to match all
+     * @param lockDataToMatch       optional - lock data to match (note: all entries must match) or null/empty to match all
+     */
+    public void removeLocks(String avmStore, String dirPath, final Map<String, String> lockDataToMatch);
+}