org.opendaylight.mdsal.binding.util

Interface TypedReadTransaction<D extends Datastore>

Type Parameters:

D - The logical datastore handled by the transaction.

All Superinterfaces:

org.opendaylight.yangtools.concepts.Identifiable<Object>, Transaction

All Known Subinterfaces:

TypedReadWriteTransaction<D>

public interface TypedReadTransaction<D extends Datastore>
extends Transaction

Read transaction which is specific to a single logical datastore (configuration or operational). Designed for use with ManagedNewTransactionRunner (it doesn’t support explicit cancel or commit operations).

See Also:

ReadTransaction

Method Summary

Modifier and Type	Method and Description
default com.google.common.util.concurrent.FluentFuture<Boolean>	exists(InstanceIdentifier<?> path) Determines if an object exists at the given path.
<T extends DataObject> com.google.common.util.concurrent.FluentFuture<Optional<T>>	read(InstanceIdentifier<T> path) Reads an object from the given path.

Methods inherited from interface org.opendaylight.yangtools.concepts.Identifiable

getIdentifier

Method Detail

read

<T extends DataObject> com.google.common.util.concurrent.FluentFuture<Optional<T>> read(InstanceIdentifier<T> path)

Reads an object from the given path.

Type Parameters:

T - The type of the expected object.

Parameters:

path - The path to read from.

Returns:

A future providing access to the result of the read, when it’s available, or any error encountered.

See Also:

ReadOperations.read(LogicalDatastoreType, InstanceIdentifier)

exists

default com.google.common.util.concurrent.FluentFuture<Boolean> exists(InstanceIdentifier<?> path)

Determines if an object exists at the given path. Default implementation just delegates to read(InstanceIdentifier). Implementations are recommended to override with a more efficient implementation.

Parameters:

path - The path to read from.

Returns:

A future providing access to the result of the check, when it’s available, or any error encountered.

See Also:

ReadOperations.exists(LogicalDatastoreType, InstanceIdentifier)