BUG-2138: Create DistributedShardFrontend

[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / sharding / DistributedShardModificationCursor.java

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/sharding/DistributedShardModificationCursor.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/sharding/DistributedShardModificationCursor.java
new file mode 100644 (file)
index 0000000..37ccf60
--- /dev/null
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/sharding/DistributedShardModificationCursor.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.opendaylight.controller.cluster.sharding;
+
+import org.opendaylight.mdsal.dom.spi.shard.AbstractDataModificationCursor;
+import org.opendaylight.mdsal.dom.spi.shard.WriteCursorStrategy;
+
+/**
+ * Internal cursor implementation consisting of WriteCursorStrategies which forwards writes to foreign modifications
+ * if any.
+ */
+public class DistributedShardModificationCursor extends AbstractDataModificationCursor<DistributedShardModification> {
+
+    private ShardProxyTransaction parent;
+
+    public DistributedShardModificationCursor(final DistributedShardModification root,
+                                              final ShardProxyTransaction parent) {
+        super(root);
+        this.parent = parent;
+    }
+
+    @Override
+    protected WriteCursorStrategy getRootOperation(final DistributedShardModification root) {
+        return root.createOperation(null);
+    }
+
+    @Override
+    public void close() {
+        parent.cursorClosed();
+    }
+}