ALF-10771: DiffContext is now passed around to provide the DB Dialect.

Instead of the Differences being passed around on their own, the DiffContext is able to provide more information -- at present just the Dialect. The dialect can be used to change the way database objects are validated or differenced.





git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@31466 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/util/schemacomp/DiffContext.java

@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2005-2011 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.util.schemacomp;
+
+import org.hibernate.dialect.Dialect;
+
+/**
+ * A context made available to schema differencing and validation operations. It supplies information
+ * about the {@link Dialect database dialect} that should be used when validating database properties
+ * and the {@link Differences} object that should be populated with schema differences and validation errors.
+ * 
+ * @author Matt Ward
+ */
+public class DiffContext
+{
+    private final Dialect dialect;
+    private final Differences differences;
+    
+    
+    /**
+     * @param dialect
+     * @param differences
+     */
+    public DiffContext(Dialect dialect, Differences differences)
+    {
+        this.dialect = dialect;
+        this.differences = differences;
+    }
+
+    /**
+     * @return the dialect
+     */
+    public Dialect getDialect()
+    {
+        return this.dialect;
+    }
+
+    /**
+     * @return the differences
+     */
+    public Differences getDifferences()
+    {
+        return this.differences;
+    }
+}