/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2014, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.engine.query.internal;
import java.util.HashMap;
import java.util.Map;
import org.hibernate.engine.query.spi.NamedParameterDescriptor;
import org.hibernate.engine.query.spi.NativeQueryInterpreter;
import org.hibernate.engine.query.spi.NativeSQLQueryPlan;
import org.hibernate.engine.query.spi.OrdinalParameterDescriptor;
import org.hibernate.engine.query.spi.ParamLocationRecognizer;
import org.hibernate.engine.query.spi.ParameterMetadata;
import org.hibernate.engine.query.spi.sql.NativeSQLQuerySpecification;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.loader.custom.CustomQuery;
import org.hibernate.loader.custom.sql.SQLCustomQuery;
/**
* @author Steve Ebersole
*/
public class NativeQueryInterpreterStandardImpl implements NativeQueryInterpreter {
/**
* Singleton access
*/
public static final NativeQueryInterpreterStandardImpl INSTANCE = new NativeQueryInterpreterStandardImpl();
@Override
public ParameterMetadata getParameterMetadata(String nativeQuery) {
final ParamLocationRecognizer recognizer = ParamLocationRecognizer.parseLocations( nativeQuery );
final int size = recognizer.getOrdinalParameterLocationList().size();
final OrdinalParameterDescriptor[] ordinalDescriptors = new OrdinalParameterDescriptor[ size ];
for ( int i = 0; i < size; i++ ) {
final Integer position = recognizer.getOrdinalParameterLocationList().get( i );
ordinalDescriptors[i] = new OrdinalParameterDescriptor( i, null, position );
}
final Map<String, NamedParameterDescriptor> namedParamDescriptorMap = new HashMap<String, NamedParameterDescriptor>();
final Map<String, ParamLocationRecognizer.NamedParameterDescription> map = recognizer.getNamedParameterDescriptionMap();
for ( final String name : map.keySet() ) {
final ParamLocationRecognizer.NamedParameterDescription description = map.get( name );
namedParamDescriptorMap.put(
name,
new NamedParameterDescriptor(
name,
null,
description.buildPositionsArray(),
description.isJpaStyle()
)
);
}
return new ParameterMetadata( ordinalDescriptors, namedParamDescriptorMap );
}
@Override
public NativeSQLQueryPlan createQueryPlan(
NativeSQLQuerySpecification specification,
SessionFactoryImplementor sessionFactory) {
CustomQuery customQuery = new SQLCustomQuery(
specification.getQueryString(),
specification.getQueryReturns(),
specification.getQuerySpaces(),
sessionFactory
);
return new NativeSQLQueryPlan( specification.getQueryString(), customQuery );
}
}