package org.hibernate.engine.query;import org.hibernate.type.Type;import java.io.Serializable;import java.util.Set;/** * Defines metadata regarding a translated HQL or native-SQL query. * * @author <a href="mailto:steve@hibernate.org">Steve Ebersole </a> */public class QueryMetadata implements Serializable {	private final String sourceQuery;	private final ParameterMetadata parameterMetadata;	private final String[] returnAliases;	private final Type[] returnTypes;	private final Set querySpaces;	public QueryMetadata(			String sourceQuery,	        ParameterMetadata parameterMetadata,	        String[] returnAliases,	        Type[] returnTypes,	        Set querySpaces) {		this.sourceQuery = sourceQuery;		this.parameterMetadata = parameterMetadata;		this.returnAliases = returnAliases;		this.returnTypes = returnTypes;		this.querySpaces = querySpaces;	}	/**	 * Get the source HQL or native-SQL query.	 *	 * @return The source query.	 */	public String getSourceQuery() {		return sourceQuery;	}	public ParameterMetadata getParameterMetadata() {		return parameterMetadata;	}	/**	 * Return source query select clause aliases (if any)	 *	 * @return an array of aliases as strings.	 */	public String[] getReturnAliases() {		return returnAliases;	}	/**	 * An array of types describing the returns of the source query.	 *	 * @return The return type array.	 */	public Type[] getReturnTypes() {		return returnTypes;	}	/**	 * The set of query spaces affected by this source query.	 *	 * @return The set of query spaces.	 */	public Set getQuerySpaces() {		return querySpaces;	}}