/* * 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.api; import org.opendaylight.controller.md.sal.common.api.data.AsyncReadTransaction; import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType; import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException; import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier; import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode; import com.google.common.base.Optional; import com.google.common.util.concurrent.CheckedFuture; /** * A transaction that provides read access to a logical data store. *
* For more information on usage and examples, please see the documentation in {@link AsyncReadTransaction}.
*/
public interface DOMDataReadTransaction extends AsyncReadTransaction
* If the target is a subtree, then the whole subtree is read (and will be
* accessible from the returned data object).
*
* @param store
* Logical data store from which read should occur.
* @param path
* Path which uniquely identifies subtree which client want to
* read
* @return a CheckFuture containing the result of the read. The Future blocks until the
* commit operation is complete. Once complete:
*
*
* Note: a successful result from this method makes no guarantee that a subsequent call to {@link #read}
* will succeed. It is possible that the data resides in a data store on a remote node and, if that
* node goes down or a network failure occurs, a subsequent read would fail. Another scenario is if
* the data is deleted in between the calls to
*
*/
CheckedFutureexists
and read
*
* @param store
* Logical data store from which read should occur.
* @param path
* Path which uniquely identifies subtree which client want to
* check existence of
* @return a CheckFuture containing the result of the check.
*
*
*/
CheckedFuture