org.opendaylight.mdsal.dom.broker

Class ShardedDOMDataBrokerAdapter

java.lang.Object

org.opendaylight.mdsal.dom.broker.ShardedDOMDataBrokerAdapter

All Implemented Interfaces:

AsyncDataBroker<org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier,org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode<?,?>>, AsyncDataTransactionFactory<org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier,org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode<?,?>>, TransactionChainFactory<org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier,org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode<?,?>>, DOMDataBroker, DOMExtensibleService<DOMDataBroker,DOMDataBrokerExtension>, DOMService

public class ShardedDOMDataBrokerAdapter
extends Object
implements DOMDataBroker

Constructor Summary

Constructors

Constructor and Description
ShardedDOMDataBrokerAdapter(DOMDataTreeService service)

Method Summary

Modifier and Type	Method and Description
DOMTransactionChain	createTransactionChain(TransactionChainListener listener) Create a new transaction chain.
Map<Class<? extends DOMDataBrokerExtension>,DOMDataBrokerExtension>	getSupportedExtensions() Return a map of currently-supported extensions, along with accessor services which provide access to the specific functionality bound to this service.
DOMDataTreeReadTransaction	newReadOnlyTransaction() Allocates a new read-only transaction which provides an immutable snapshot of the data tree.
DOMDataTreeWriteTransaction	newWriteOnlyTransaction() Allocates new write-only transaction based on latest state of data tree.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ShardedDOMDataBrokerAdapter

public ShardedDOMDataBrokerAdapter(DOMDataTreeService service)

Method Detail

getSupportedExtensions

public Map<Class<? extends DOMDataBrokerExtension>,DOMDataBrokerExtension> getSupportedExtensions()

Description copied from interface: DOMExtensibleService

Return a map of currently-supported extensions, along with accessor services which provide access to the specific functionality bound to this service.

Specified by:

getSupportedExtensions in interface DOMExtensibleService<DOMDataBroker,DOMDataBrokerExtension>

Returns:

A map of supported functionality.

newReadOnlyTransaction

public DOMDataTreeReadTransaction newReadOnlyTransaction()

Description copied from interface: AsyncDataTransactionFactory

Allocates a new read-only transaction which provides an immutable snapshot of the data tree.

The view of data tree is an immutable snapshot of current data tree state when transaction was allocated.

Specified by:

newReadOnlyTransaction in interface AsyncDataBroker<org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier,org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode<?,?>>

Specified by:

newReadOnlyTransaction in interface AsyncDataTransactionFactory<org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier,org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode<?,?>>

Specified by:

newReadOnlyTransaction in interface DOMDataBroker

Returns:

new read-only transaction

newWriteOnlyTransaction

public DOMDataTreeWriteTransaction newWriteOnlyTransaction()

Description copied from interface: AsyncDataTransactionFactory

Allocates new write-only transaction based on latest state of data tree.

Preconditions for mutation of data tree are captured from the snapshot of data tree state, when the transaction is allocated. If data was changed during transaction in an incompatible way then the commit of this transaction will fail. See AsyncWriteTransaction.submit() for more details about conflicting and not-conflicting changes and failure scenarios.

Since this transaction does not provide a view of the data it SHOULD BE used only by callers which are exclusive writers (exporters of data) to the subtree they modify. This prevents optimistic lock failures as described in AsyncWriteTransaction.submit().

Exclusivity of writers to particular subtree SHOULD BE enforced by external locking mechanism.

Specified by:

newWriteOnlyTransaction in interface AsyncDataBroker<org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier,org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode<?,?>>

Specified by:

newWriteOnlyTransaction in interface AsyncDataTransactionFactory<org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier,org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode<?,?>>

Specified by:

newWriteOnlyTransaction in interface DOMDataBroker

Returns:

new write-only transaction

createTransactionChain

public DOMTransactionChain createTransactionChain(TransactionChainListener listener)

Description copied from interface: TransactionChainFactory

Create a new transaction chain. The chain will be initialized to read from its backing datastore, with no outstanding transaction. Listener will be registered to handle chain-level events.

Specified by:

createTransactionChain in interface TransactionChainFactory<org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier,org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode<?,?>>

Specified by:

createTransactionChain in interface DOMDataBroker

Parameters:

listener - Transaction chain event listener

Returns:

A new transaction chain.