Moving to root below branch label

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2005 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

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

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+/*
+ * 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 javax.transaction.UserTransaction;
+
+import org.alfresco.service.transaction.TransactionService;
+import org.alfresco.util.transaction.SpringAwareUserTransaction;
+import org.springframework.transaction.PlatformTransactionManager;
+import org.springframework.transaction.TransactionDefinition;
+
+/**
+ * Default implementation of Transaction Service
+ * 
+ * @author David Caruana
+ */
+public class TransactionComponent implements TransactionService
+{
+    private PlatformTransactionManager transactionManager;
+    private boolean readOnly = false;
+    
+    /**
+     * Set the transaction manager to use
+     * 
+     * @param transactionManager platform transaction manager
+     */
+    public void setTransactionManager(PlatformTransactionManager transactionManager)
+    {
+        this.transactionManager = transactionManager;
+    }
+
+    /**
+     * Set the read-only mode for all generated transactions.
+     * 
+     * @param allowWrite false if all transactions must be read-only
+     */
+    public void setAllowWrite(boolean allowWrite)
+    {
+        this.readOnly = !allowWrite;
+    }
+    
+    public boolean isReadOnly()
+    {
+        return readOnly;
+    }
+
+    /**
+     * @see org.springframework.transaction.TransactionDefinition#PROPAGATION_REQUIRED
+     */
+    public UserTransaction getUserTransaction()
+    {
+        SpringAwareUserTransaction txn = new SpringAwareUserTransaction(
+                transactionManager,
+                this.readOnly,
+                TransactionDefinition.ISOLATION_DEFAULT,
+                TransactionDefinition.PROPAGATION_REQUIRED,
+                TransactionDefinition.TIMEOUT_DEFAULT);
+        return txn;
+    }
+    
+    /**
+     * @see org.springframework.transaction.TransactionDefinition#PROPAGATION_REQUIRED
+     */
+    public UserTransaction getUserTransaction(boolean readOnly)
+    {
+        SpringAwareUserTransaction txn = new SpringAwareUserTransaction(
+                transactionManager,
+                (readOnly | this.readOnly),
+                TransactionDefinition.ISOLATION_DEFAULT,
+                TransactionDefinition.PROPAGATION_REQUIRED,
+                TransactionDefinition.TIMEOUT_DEFAULT);
+        return txn;
+    }
+
+    /**
+     * @see org.springframework.transaction.TransactionDefinition#PROPAGATION_REQUIRES_NEW
+     */
+    public UserTransaction getNonPropagatingUserTransaction()
+    {
+        SpringAwareUserTransaction txn = new SpringAwareUserTransaction(
+                transactionManager,
+                this.readOnly,
+                TransactionDefinition.ISOLATION_DEFAULT,
+                TransactionDefinition.PROPAGATION_REQUIRES_NEW,
+                TransactionDefinition.TIMEOUT_DEFAULT);
+        return txn;
+    }
+}