org.hibernate.internal.util.collections.ArrayHelper#getBatchSizes ( )源码实例Demo

protected LegacyBatchingEntityLoader(
		OuterJoinLoadable persister,
		int maxBatchSize,
		LockMode lockMode,
		LockOptions lockOptions,
		SessionFactoryImplementor factory,
		LoadQueryInfluencers loadQueryInfluencers) {
	super( persister );
	this.batchSizes = ArrayHelper.getBatchSizes( maxBatchSize );
	this.loaders = new EntityLoader[ batchSizes.length ];
	final EntityLoader.Builder entityLoaderBuilder = EntityLoader.forEntity( persister )
			.withInfluencers( loadQueryInfluencers )
			.withLockMode( lockMode )
			.withLockOptions( lockOptions );

	// we create a first entity loader to use it as a template for the others
	this.loaders[0] = entityLoaderBuilder.withBatchSize( batchSizes[0] ).byPrimaryKey();

	for ( int i = 1; i < batchSizes.length; i++ ) {
		this.loaders[i] = entityLoaderBuilder.withEntityLoaderTemplate( this.loaders[0] ).withBatchSize( batchSizes[i] ).byPrimaryKey();
	}
}
 

public ReactivePaddedBatchingEntityLoader(
		OuterJoinLoadable persister,
		int maxBatchSize,
		LockMode lockMode,
		SessionFactoryImplementor factory,
		LoadQueryInfluencers loadQueryInfluencers) {
	super( persister );
	this.batchSizes = ArrayHelper.getBatchSizes( maxBatchSize );
	this.loaders = new ReactiveEntityLoader[ batchSizes.length ];
	for ( int i = 0; i < batchSizes.length; i++ ) {
		this.loaders[i] = new ReactiveEntityLoader( persister, batchSizes[i], lockMode, factory, loadQueryInfluencers);
	}
	validate( maxBatchSize );
}
 

public ReactivePaddedBatchingEntityLoader(
		OuterJoinLoadable persister,
		int maxBatchSize,
		LockOptions lockOptions,
		SessionFactoryImplementor factory,
		LoadQueryInfluencers loadQueryInfluencers) {
	super( persister );
	this.batchSizes = ArrayHelper.getBatchSizes( maxBatchSize );
	this.loaders = new ReactiveEntityLoader[ batchSizes.length ];
	for ( int i = 0; i < batchSizes.length; i++ ) {
		this.loaders[i] = new ReactiveEntityLoader( persister, batchSizes[i], lockOptions, factory, loadQueryInfluencers);
	}
	validate( maxBatchSize );
}
 

@Override
	public ReactiveCollectionLoader createRealBatchingCollectionInitializer(
			QueryableCollection persister,
			int maxBatchSize,
			SessionFactoryImplementor factory,
			LoadQueryInfluencers loadQueryInfluencers) throws MappingException {
		int[] batchSizes = ArrayHelper.getBatchSizes( maxBatchSize );
		ReactiveCollectionLoader[] loaders = new ReactiveCollectionLoader[ batchSizes.length ];
		for ( int i = 0; i < batchSizes.length; i++ ) {
			throw new UnsupportedOperationException();
//			loaders[i] = new ReactiveBasicCollectionLoader( persister, batchSizes[i], factory, loadQueryInfluencers );
		}
		return new ReactivePaddedBatchingCollectionInitializer( persister, batchSizes, loaders, factory, loadQueryInfluencers);
	}
 

@Override
public ReactiveCollectionLoader createRealBatchingOneToManyInitializer(
		QueryableCollection persister,
		int maxBatchSize,
		SessionFactoryImplementor factory,
		LoadQueryInfluencers loadQueryInfluencers) throws MappingException {
	final int[] batchSizes = ArrayHelper.getBatchSizes( maxBatchSize );
	final ReactiveCollectionLoader[] loaders = new ReactiveCollectionLoader[ batchSizes.length ];
	for ( int i = 0; i < batchSizes.length; i++ ) {
		loaders[i] = new ReactiveOneToManyLoader( persister, batchSizes[i], factory, loadQueryInfluencers );
	}
	return new ReactivePaddedBatchingCollectionInitializer( persister, batchSizes, loaders, factory, loadQueryInfluencers);
}
 

public LegacyBatchingEntityLoader(
		OuterJoinLoadable persister,
		int maxBatchSize,
		LockMode lockMode,
		SessionFactoryImplementor factory,
		LoadQueryInfluencers loadQueryInfluencers) {
	super( persister );
	this.batchSizes = ArrayHelper.getBatchSizes( maxBatchSize );
	this.loaders = new Loader[ batchSizes.length ];
	for ( int i = 0; i < batchSizes.length; i++ ) {
		this.loaders[i] = new EntityLoader( persister, batchSizes[i], lockMode, factory, loadQueryInfluencers);
	}
}
 

public LegacyBatchingEntityLoader(
		OuterJoinLoadable persister,
		int maxBatchSize,
		LockOptions lockOptions,
		SessionFactoryImplementor factory,
		LoadQueryInfluencers loadQueryInfluencers) {
	super( persister );
	this.batchSizes = ArrayHelper.getBatchSizes( maxBatchSize );
	this.loaders = new Loader[ batchSizes.length ];
	for ( int i = 0; i < batchSizes.length; i++ ) {
		this.loaders[i] = new EntityLoader( persister, batchSizes[i], lockOptions, factory, loadQueryInfluencers);
	}
}
 

public PaddedBatchingEntityLoader(
		OuterJoinLoadable persister,
		int maxBatchSize,
		LockMode lockMode,
		SessionFactoryImplementor factory,
		LoadQueryInfluencers loadQueryInfluencers) {
	super( persister );
	this.batchSizes = ArrayHelper.getBatchSizes( maxBatchSize );
	this.loaders = new Loader[ batchSizes.length ];
	for ( int i = 0; i < batchSizes.length; i++ ) {
		this.loaders[i] = new EntityLoader( persister, batchSizes[i], lockMode, factory, loadQueryInfluencers);
	}
	validate( maxBatchSize );
}
 

public PaddedBatchingEntityLoader(
		OuterJoinLoadable persister,
		int maxBatchSize,
		LockOptions lockOptions,
		SessionFactoryImplementor factory,
		LoadQueryInfluencers loadQueryInfluencers) {
	super( persister );
	this.batchSizes = ArrayHelper.getBatchSizes( maxBatchSize );
	this.loaders = new Loader[ batchSizes.length ];
	for ( int i = 0; i < batchSizes.length; i++ ) {
		this.loaders[i] = new EntityLoader( persister, batchSizes[i], lockOptions, factory, loadQueryInfluencers);
	}
	validate( maxBatchSize );
}
 

@Override
protected CollectionInitializer createRealBatchingCollectionInitializer(
		QueryableCollection persister,
		int maxBatchSize,
		SessionFactoryImplementor factory,
		LoadQueryInfluencers loadQueryInfluencers) throws MappingException {
	int[] batchSizes = ArrayHelper.getBatchSizes( maxBatchSize );
	Loader[] loaders = new Loader[ batchSizes.length ];
	for ( int i = 0; i < batchSizes.length; i++ ) {
		loaders[i] = new BasicCollectionLoader( persister, batchSizes[i], factory, loadQueryInfluencers );
	}
	return new LegacyBatchingCollectionInitializer( persister, batchSizes, loaders );
}
 

@Override
protected CollectionInitializer createRealBatchingOneToManyInitializer(
		QueryableCollection persister,
		int maxBatchSize,
		SessionFactoryImplementor factory,
		LoadQueryInfluencers loadQueryInfluencers) throws MappingException {
	final int[] batchSizes = ArrayHelper.getBatchSizes( maxBatchSize );
	final Loader[] loaders = new Loader[ batchSizes.length ];
	for ( int i = 0; i < batchSizes.length; i++ ) {
		loaders[i] = new OneToManyLoader( persister, batchSizes[i], factory, loadQueryInfluencers );
	}
	return new LegacyBatchingCollectionInitializer( persister, batchSizes, loaders );
}
 

@Override
public CollectionInitializer createRealBatchingCollectionInitializer(
		QueryableCollection persister,
		int maxBatchSize,
		SessionFactoryImplementor factory,
		LoadQueryInfluencers loadQueryInfluencers) throws MappingException {
	int[] batchSizes = ArrayHelper.getBatchSizes( maxBatchSize );
	Loader[] loaders = new Loader[ batchSizes.length ];
	for ( int i = 0; i < batchSizes.length; i++ ) {
		loaders[i] = new BasicCollectionLoader( persister, batchSizes[i], factory, loadQueryInfluencers );
	}
	return new PaddedBatchingCollectionInitializer( persister, batchSizes, loaders );
}
 

@Override
public CollectionInitializer createRealBatchingOneToManyInitializer(
		QueryableCollection persister,
		int maxBatchSize,
		SessionFactoryImplementor factory,
		LoadQueryInfluencers loadQueryInfluencers) throws MappingException {
	final int[] batchSizes = ArrayHelper.getBatchSizes( maxBatchSize );
	final Loader[] loaders = new Loader[ batchSizes.length ];
	for ( int i = 0; i < batchSizes.length; i++ ) {
		loaders[i] = new OneToManyLoader( persister, batchSizes[i], factory, loadQueryInfluencers );
	}
	return new PaddedBatchingCollectionInitializer( persister, batchSizes, loaders );
}
 

@Override
public CollectionInitializer createRealBatchingCollectionInitializer(
		QueryableCollection persister,
		int maxBatchSize,
		SessionFactoryImplementor factory,
		LoadQueryInfluencers loadQueryInfluencers) throws MappingException {
	int[] batchSizes = ArrayHelper.getBatchSizes( maxBatchSize );
	Loader[] loaders = new Loader[ batchSizes.length ];
	for ( int i = 0; i < batchSizes.length; i++ ) {
		loaders[i] = new BasicCollectionLoader( persister, batchSizes[i], factory, loadQueryInfluencers );
	}
	return new LegacyBatchingCollectionInitializer( persister, batchSizes, loaders );
}
 

@Override
public CollectionInitializer createRealBatchingOneToManyInitializer(
		QueryableCollection persister,
		int maxBatchSize,
		SessionFactoryImplementor factory,
		LoadQueryInfluencers loadQueryInfluencers) throws MappingException {
	final int[] batchSizes = ArrayHelper.getBatchSizes( maxBatchSize );
	final Loader[] loaders = new Loader[ batchSizes.length ];
	for ( int i = 0; i < batchSizes.length; i++ ) {
		loaders[i] = new OneToManyLoader( persister, batchSizes[i], factory, loadQueryInfluencers );
	}
	return new LegacyBatchingCollectionInitializer( persister, batchSizes, loaders );
}