Package dev.getelements.elements.rt.transact

Interface TransactionalResourceServicePersistence

All Known Implementing Classes:

JournalTransactionalResourceServicePersistenceEnvironment

public interface TransactionalResourceServicePersistence

Supplies instances of ReadOnlyTransaction as well as ReadWriteTransaction for manipulating the unerlying data storage.

Method Summary

Modifier and Type	Method	Description
ReadOnlyTransaction.Builder<ReadOnlyTransaction>	buildRO(NodeId nodeId)	Starts building an instance of ReadOnlyTransaction against the underlying data store.
ReadOnlyTransaction.Builder<ReadWriteTransaction>	buildRW(NodeId nodeId)	Starts building an instance of ReadWriteTransaction against the underlying data store.
ExclusiveReadWriteTransaction	openExclusiveRW()	Opens a ExclusiveReadWriteTransaction which will lock the entire underlying data storage such that certain operations may be performed against the whole dataset.

Method Details

buildRO

ReadOnlyTransaction.Builder<ReadOnlyTransaction> buildRO(NodeId nodeId)

Starts building an instance of ReadOnlyTransaction against the underlying data store.

Parameters:

nodeId - the NodeId to use for the transaction context.

Returns:

the ReadOnlyTransaction

buildRW

ReadOnlyTransaction.Builder<ReadWriteTransaction> buildRW(NodeId nodeId)

Starts building an instance of ReadWriteTransaction against the underlying data store.

Parameters:

nodeId - the NodeId to use for the transaction context.

Returns:

the ReadOnlyTransaction

openExclusiveRW

ExclusiveReadWriteTransaction openExclusiveRW()

Opens a ExclusiveReadWriteTransaction which will lock the entire underlying data storage such that certain operations may be performed against the whole dataset. Generally this should be avoided as it incurs a steep performance penalty.

Returns:

the ExclusiveReadWriteTransaction