org.hibernate.persister.entity.UniqueKeyLoadable Maven / Gradle / Ivy

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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.persister.entity;

import org.hibernate.LockOptions;
import org.hibernate.engine.spi.SharedSessionContractImplementor;

/**
 * @author Gavin King
 */
public interface UniqueKeyLoadable extends Loadable {
	/**
	 * Load an instance of the persistent class, by a unique key other
	 * than the primary key.
	 */
	Object loadByUniqueKey(
			String propertyName,
			Object uniqueKey,
			SharedSessionContractImplementor session);

	/**
	 * Load an instance of the persistent class, by a natural id.
	 */
	Object loadByNaturalId(
			Object[] naturalIds,
			LockOptions lockOptions,
			SharedSessionContractImplementor session);

	/**
	 * Get the property number of the unique key property
	 */
	int getPropertyIndex(String propertyName);

}