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Hibernate O/RM implementation of the Jakarta Persistence specification

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/*
 * 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.type;

import java.io.Serializable;
import java.util.HashSet;

import org.hibernate.collection.internal.PersistentSet;
import org.hibernate.collection.spi.PersistentCollection;
import org.hibernate.engine.spi.SharedSessionContractImplementor;
import org.hibernate.persister.collection.CollectionPersister;

public class SetType extends CollectionType {

	/**
	 * @deprecated Use the other constructor
	 */
	@Deprecated
	public SetType(TypeFactory.TypeScope typeScope, String role, String propertyRef) {
		this( role, propertyRef );
	}

	public SetType(String role, String propertyRef) {
		super( role, propertyRef );
	}

	@Override
	public PersistentCollection instantiate(SharedSessionContractImplementor session, CollectionPersister persister, Serializable key) {
		return new PersistentSet( session );
	}

	@Override
	public Class getReturnedClass() {
		return java.util.Set.class;
	}

	@Override
	public PersistentCollection wrap(SharedSessionContractImplementor session, Object collection) {
		return new PersistentSet( session, (java.util.Set) collection );
	}

	@Override
	public Object instantiate(int anticipatedSize) {
		return anticipatedSize <= 0
				? new HashSet()
				: new HashSet( anticipatedSize + (int)( anticipatedSize * .75f ), .75f );
	}

}