org.neo4j.ogm.session

Interface GraphCallback<T>

Type Parameters:

T - The type of object returned from applying this callback

public interface GraphCallback<T>

A callback interface used to pass functional code to the Session to be executed in a transaction and with access to the underlying OGM meta-data.

Author:

Adam George

Method Summary

Methods

Modifier and Type	Method and Description
T	apply(RequestHandler requestHandler, Transaction transaction, MetaData metaData) Called by the OGM Session in a transaction to perform some arbitrary database operation.

Method Detail

apply

T apply(RequestHandler requestHandler,
      Transaction transaction,
      MetaData metaData)

Called by the OGM Session in a transaction to perform some arbitrary database operation.

Parameters:

requestHandler - The RequestHandler for communication with the database

transaction - The Transaction in which the database communication is taking place

metaData - The mapping MetaData that pertains to the current session

Returns:

An arbitrary result (or null) based on the desired behaviour of this callback function