Fix AR-649.

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@3121 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/transaction/TransactionalDaoInterceptor.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2005 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.transaction;
+
+import org.alfresco.error.AlfrescoRuntimeException;
+import org.aopalliance.intercept.MethodInterceptor;
+import org.aopalliance.intercept.MethodInvocation;
+import org.springframework.beans.factory.InitializingBean;
+
+/**
+ * Utility class that ensures that a <tt>NodeDaoService</tt> has been registered
+ * with the current transaction.
+ * <p>
+ * It is designed to act as a <b>postInterceptor</b> on the <tt>NodeDaoService</tt>'s
+ * {@link org.springframework.transaction.interceptor.TransactionProxyFactoryBean}. 
+ * 
+ * @author Derek Hulley
+ */
+public class TransactionalDaoInterceptor implements MethodInterceptor, InitializingBean
+{
+    private TransactionalDao daoService;
+
+    /**
+     * @param daoService the <tt>NodeDaoService</tt> to register
+     */
+    public void setDaoService(TransactionalDao daoService)
+    {
+        this.daoService = daoService;
+    }
+
+    /**
+     * Checks that required values have been injected
+     */
+    public void afterPropertiesSet() throws Exception
+    {
+        if (daoService == null)
+        {
+            throw new AlfrescoRuntimeException("TransactionalDao is required: " + this);
+        }
+    }
+
+    public Object invoke(MethodInvocation invocation) throws Throwable
+    {
+        AlfrescoTransactionSupport.bindDaoService(daoService);
+        // propogate the call
+        return invocation.proceed();
+    }
+}