org.neo4j.ogm.session

Interface Capability.Transactions

All Known Subinterfaces:

Session

All Known Implementing Classes:

Neo4jSession, TransactionsDelegate

Enclosing interface:

Capability

public static interface Capability.Transactions

Method Summary

Methods

Modifier and Type	Method and Description
Transaction	beginTransaction() Begin a new transaction.
<T> T	doInTransaction(GraphCallback<T> graphCallback) Applies the given GraphCallback in the scope of this Session, giving fine-grained control over behaviour.
Transaction	getTransaction() Get the existing transaction if available

Method Detail

getTransaction

Transaction getTransaction()

Get the existing transaction if available

Returns:

an active Transaction, or null if none exists

beginTransaction

Transaction beginTransaction()

Begin a new transaction. If an existing transaction already exists, users must decide whether to commit or rollback. Only one transaction can be bound to a thread at any time, so active transactions that have not been closed but are no longer bound to the thread must be handled by client code.

Returns:

a new active Transaction

doInTransaction

<T> T doInTransaction(GraphCallback<T> graphCallback)

Applies the given GraphCallback in the scope of this Session, giving fine-grained control over behaviour.

Parameters:

graphCallback - The GraphCallback to execute

Returns:

The result of calling the given GraphCallback

Throws:

NullPointerException - if invoked with null