1 files changed, 68 insertions, 0 deletions
diff --git a/das-java/tags/1.0-incubating-beta1-rc2/rdb/src/main/java/org/apache/tuscany/das/rdb/Command.java b/das-java/tags/1.0-incubating-beta1-rc2/rdb/src/main/java/org/apache/tuscany/das/rdb/Command.java
new file mode 100644
index 0000000000..3c80c34b68
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+++ b/das-java/tags/1.0-incubating-beta1-rc2/rdb/src/main/java/org/apache/tuscany/das/rdb/Command.java
@@ -0,0 +1,68 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * 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.apache.tuscany.das.rdb;
+
+import commonj.sdo.DataObject;
+
+/**
+ * A Command is used to execute a read or write to a database
+ */
+public interface Command {
+
+    /**
+     * Performs the function defined by the command
+     */
+    void execute();
+
+    /**
+     * Performs the function defined by the command and return the results in the root DataObject
+     * 
+     * @return the root DataObject
+     */
+    DataObject executeQuery();
+
+    /**
+     * Sets the value of the associated Parameter
+     * 
+     * @param index
+     *            the index of the Parameter
+     * @param value
+     *            the value for the Parameter
+     */
+    void setParameter(int index, Object value);
+
+    /**
+     * Returns the value of the associated Parameter
+     * 
+     * @param index
+     *            the index of the Parameter
+     * @return the value of the Parameter
+     */
+    Object getParameter(int index);
+
+    /**
+     * Returns the value of the database-generated key. This method is specific 
+     * to an "insert" command and will be valid only after the command has
+     * been executed.
+     * 
+     * @return the generated key
+     */
+    int getGeneratedKey();
+
+}