1 files changed, 81 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/java-stable-20060304/das/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/Changes.java b/sca-java-1.x/tags/java-stable-20060304/das/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/Changes.java
new file mode 100644
index 0000000000..364007d8cf
--- /dev/null
+++ b/sca-java-1.x/tags/java-stable-20060304/das/rdb/src/main/java/org/apache/tuscany/das/rdb/impl/Changes.java
@@ -0,0 +1,81 @@
+/**
+ *
+ *  Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
+ *
+ *  Licensed 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.impl;
+
+import java.util.ArrayList;
+import java.util.Iterator;
+
+/**
+ * Mangages a set of graph-change operations.  This simple implementaiton can be 
+ * replaced with a version that provides R/I sorting
+ * 
+ */
+public class Changes {
+
+	private InsertList inserts = new InsertList();
+	private UpdateList updates = new UpdateList();
+	private DeleteList deletes = new DeleteList();
+	
+//	private static final boolean debug = false;
+	
+	public void addInsert(ChangeOperation c) {
+		inserts.add(c);
+	}
+	
+	public void addUpdate(ChangeOperation c) {
+		updates.add(c);
+	}
+	
+	public void addDelete(ChangeOperation c) {
+		deletes.add(c);
+	}
+
+	/**
+	 * Execute all my change
+	 */
+	public void execute() {
+		
+		Iterator i = inserts.getSortedList().iterator();
+		while ( i.hasNext() ) {
+			ChangeOperation c = (ChangeOperation) i.next();
+			c.execute();
+		}
+		
+		i = updates.getSortedList().iterator();
+		while ( i.hasNext() ) {
+			ChangeOperation c = (ChangeOperation) i.next();
+			c.execute();
+		}
+		
+		
+		i = deletes.getSortedList().iterator();
+		while (i.hasNext() ) {
+			ChangeOperation c = (ChangeOperation) i.next();
+			c.execute();
+		}
+	
+	}
+	
+	public void setInsertOrder(ArrayList insertOrder) {
+		inserts.setOrder(insertOrder);
+	}
+
+	public void setDeleteOrder(ArrayList deleteOrder) {
+		deletes.setOrder(deleteOrder);
+	}
+
+}