Package org.keycloak.connections.jpa.support

Class EntityManagers

java.lang.Object

org.keycloak.connections.jpa.support.EntityManagers

public class EntityManagers
extends Object

Constructor Summary

Constructors

Constructor	Description
EntityManagers()

Method Summary

Modifier and Type	Method	Description
static void	flush(KeycloakSession session, boolean clear)	Flush and optionally clear all the currently in use EntityManagers
static void	runInBatch(KeycloakSession session, Runnable runnable, boolean nestedEntityManagers)	Run the operation in batch mode with a pre-flush.

Methods inherited from class java.lang.Object

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

Constructor Details

EntityManagers

public EntityManagers()

Method Details

flush

public static void flush(KeycloakSession session,
 boolean clear)

Flush and optionally clear all the currently in use EntityManagers

runInBatch

public static void runInBatch(KeycloakSession session,
 Runnable runnable,
 boolean nestedEntityManagers)

Run the operation in batch mode with a pre-flush.

It is desirable to use nestedEntityManagers=true to keep the existing context free of newly created entities.

flush and detach operations are NOT automatically inhibited in batch mode. For even greater performance, and statement level batching by Hibernate, you may use the isBatchMode() to conditionally not perform those operations - however keep in mind that especially when running with nestedEntityManagers=false, the current persistence context will accumulate anything that is not detached.

WARNING: Any queries run while batching will be in COMMIT mode, so they cannot see non-flushed changes made within the batch. Most of Keycloak's JPA code however persists and flushes together.

Parameters:

nestedEntityManagers - - if true run with isolated EntityManagers WARNING: Any entities passed into the task that that will get persisted must not already be associated with an open EntityManager.