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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.criterion;

import org.hibernate.Criteria;
import org.hibernate.type.Type;

/**
 * A property value, or grouped property value
 *
 * @author Gavin King
 */
public class IdentifierProjection extends SimpleProjection {
	private boolean grouped;

	/**
	 * Constructs a non-grouped identifier projection
	 *
	 * @see Projections#id
	 */
	protected IdentifierProjection() {
		this( false );
	}

	/**
	 *
	 * Not used externally
	 */
	private IdentifierProjection(boolean grouped) {
		this.grouped = grouped;
	}

	@Override
	public Type[] getTypes(Criteria criteria, CriteriaQuery criteriaQuery) {
		return new Type[] { criteriaQuery.getIdentifierType( criteria ) };
	}

	@Override
	public String toSqlString(Criteria criteria, int position, CriteriaQuery criteriaQuery) {
		final StringBuilder buf = new StringBuilder();
		final String[] cols = criteriaQuery.getIdentifierColumns( criteria );
		for ( int i=0; i




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