Bug 499: Initial implementation of supporting tree structures

[controller.git] / opendaylight / md-sal / sal-dom-broker / src / main / java / org / opendaylight / controller / md / sal / dom / store / impl / tree / StoreTreeNode.java

diff --git a/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/tree/StoreTreeNode.java b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/tree/StoreTreeNode.java
new file mode 100644 (file)
index 0000000..52beaa7
--- /dev/null
+++ b/opendaylight/md-sal/sal-dom-broker/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/tree/StoreTreeNode.java
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2014 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.md.sal.dom.store.impl.tree;
+
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.PathArgument;
+
+import com.google.common.base.Optional;
+/**
+ *
+ * Tree node which contains references to it's leafs
+ *
+ * @param <C> Final node type
+ */
+public interface StoreTreeNode<C extends StoreTreeNode<C>> {
+
+    /**
+     *
+     * Returns direct child of the node
+     *
+     * @param child Identifier of child
+     * @return Optional with node if the child is existing, {@link Optional#absent()} otherwise.
+     */
+    Optional<C> getChild(PathArgument child);
+}