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Hibernate's core ORM functionality

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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.internal;

import org.hibernate.persister.entity.AbstractEntityPersister;

/**
 * @author Rob Worsnop
 */
public class DynamicFilterAliasGenerator implements FilterAliasGenerator {
	private String[] tables;
	private String rootAlias;

	public DynamicFilterAliasGenerator(String[] tables, String rootAlias) {
		this.tables = tables;
		this.rootAlias = rootAlias;
	}

	@Override
	public String getAlias(String table) {
		if ( table == null ) {
			return rootAlias;
		}
		else {
			return AbstractEntityPersister.generateTableAlias(
					rootAlias,
					AbstractEntityPersister.getTableId( table, tables )
			);
		}
	}

}