+/*
+ * Copyright (c) 2015 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.api;
+
+import com.google.common.base.Preconditions;
+import java.io.Serializable;
+import javax.annotation.Nonnull;
+import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
+import org.opendaylight.yangtools.concepts.Immutable;
+import org.opendaylight.yangtools.concepts.Path;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+
+/**
+ * A unique identifier for a particular subtree. It is composed of the logical
+ * data store type and the instance identifier of the root node.
+ */
+public final class DOMDataTreeIdentifier implements Immutable, Path<DOMDataTreeIdentifier>, Serializable {
+ private static final long serialVersionUID = 1L;
+ private final YangInstanceIdentifier rootIdentifier;
+ private final LogicalDatastoreType datastoreType;
+
+ public DOMDataTreeIdentifier(final LogicalDatastoreType datastoreType, final YangInstanceIdentifier rootIdentifier) {
+ this.datastoreType = Preconditions.checkNotNull(datastoreType);
+ this.rootIdentifier = Preconditions.checkNotNull(rootIdentifier);
+ }
+
+ /**
+ * Return the logical data store type.
+ *
+ * @return Logical data store type. Guaranteed to be non-null.
+ */
+ public @Nonnull LogicalDatastoreType getDatastoreType() {
+ return datastoreType;
+ }
+
+ /**
+ * Return the {@link YangInstanceIdentifier} of the root node.
+ *
+ * @return Instance identifier corresponding to the root node.
+ */
+ public @Nonnull YangInstanceIdentifier getRootIdentifier() {
+ return rootIdentifier;
+ }
+
+ @Override
+ public boolean contains(final DOMDataTreeIdentifier other) {
+ return datastoreType == other.datastoreType && rootIdentifier.contains(other.rootIdentifier);
+ }
+
+ @Override
+ public int hashCode() {
+ final int prime = 31;
+ int result = 1;
+ result = prime * result + datastoreType.hashCode();
+ result = prime * result + rootIdentifier.hashCode();
+ return result;
+ }
+
+ @Override
+ public boolean equals(final Object obj) {
+ if (this == obj) {
+ return true;
+ }
+ if (!(obj instanceof DOMDataTreeIdentifier)) {
+ return false;
+ }
+ DOMDataTreeIdentifier other = (DOMDataTreeIdentifier) obj;
+ if (datastoreType != other.datastoreType) {
+ return false;
+ }
+ return rootIdentifier.equals(other.rootIdentifier);
+ }
+}