org.hibernate.loader.entity.plan.DynamicBatchingEntityLoaderBuilder Maven / Gradle / Ivy
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Hibernate's core ORM functionality
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.loader.entity.plan;
import org.hibernate.LockMode;
import org.hibernate.LockOptions;
import org.hibernate.engine.spi.LoadQueryInfluencers;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.loader.entity.UniqueEntityLoader;
import org.hibernate.persister.entity.OuterJoinLoadable;
/**
* A walking/plan based BatchingEntityLoaderBuilder that builds entity-loader instances
* capable of dynamically building its batch-fetch SQL based on the actual number of
* entity ids waiting to be batch fetched.
*/
public class DynamicBatchingEntityLoaderBuilder extends AbstractBatchingEntityLoaderBuilder {
/**
* Singleton access
*/
public static final DynamicBatchingEntityLoaderBuilder INSTANCE = new DynamicBatchingEntityLoaderBuilder();
@Override
protected UniqueEntityLoader buildBatchingLoader(
OuterJoinLoadable persister,
int batchSize,
LockMode lockMode,
SessionFactoryImplementor factory,
LoadQueryInfluencers influencers) {
return buildBatchingLoader( persister, batchSize, LockOptions.interpret( lockMode ), factory, influencers );
}
@Override
protected UniqueEntityLoader buildBatchingLoader(
OuterJoinLoadable persister,
int batchSize,
LockOptions lockOptions,
SessionFactoryImplementor factory,
LoadQueryInfluencers influencers) {
return new DynamicBatchingEntityLoader( persister, batchSize, lockOptions, factory, influencers );
}
}