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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 Steve Ebersole 
 */
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;
	}
}