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/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2013, 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.cfg.annotations;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.persistence.NamedStoredProcedureQuery;
import javax.persistence.ParameterMode;
import javax.persistence.StoredProcedureParameter;
import org.hibernate.MappingException;
import org.hibernate.engine.ResultSetMappingDefinition;
import org.hibernate.engine.query.spi.sql.NativeSQLQueryReturn;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.internal.SessionFactoryImpl;
import org.hibernate.internal.util.StringHelper;
import org.hibernate.procedure.ProcedureCallMemento;
import org.hibernate.procedure.internal.ProcedureCallMementoImpl;
import org.hibernate.procedure.internal.Util;
import org.hibernate.procedure.spi.ParameterStrategy;
import static org.hibernate.procedure.internal.ProcedureCallMementoImpl.ParameterMemento;
/**
* Holds all the information needed from a named procedure call declaration in order to create a
* {@link org.hibernate.procedure.internal.ProcedureCallImpl}
*
* @author Steve Ebersole
*
* @see javax.persistence.NamedStoredProcedureQuery
*/
public class NamedProcedureCallDefinition {
private final String registeredName;
private final String procedureName;
private final Class[] resultClasses;
private final String[] resultSetMappings;
private final ParameterDefinitions parameterDefinitions;
private final Map hints;
NamedProcedureCallDefinition(NamedStoredProcedureQuery annotation) {
this.registeredName = annotation.name();
this.procedureName = annotation.procedureName();
this.resultClasses = annotation.resultClasses();
this.resultSetMappings = annotation.resultSetMappings();
this.parameterDefinitions = new ParameterDefinitions( annotation.parameters() );
this.hints = new QueryHintDefinition( annotation.hints() ).getHintsMap();
final boolean specifiesResultClasses = resultClasses != null && resultClasses.length > 0;
final boolean specifiesResultSetMappings = resultSetMappings != null && resultSetMappings.length > 0;
if ( specifiesResultClasses && specifiesResultSetMappings ) {
throw new MappingException(
String.format(
"NamedStoredProcedureQuery [%s] specified both resultClasses and resultSetMappings",
registeredName
)
);
}
}
public String getRegisteredName() {
return registeredName;
}
public String getProcedureName() {
return procedureName;
}
public ProcedureCallMemento toMemento(
final SessionFactoryImpl sessionFactory,
final Map resultSetMappingDefinitions) {
final List collectedQueryReturns = new ArrayList();
final Set collectedQuerySpaces = new HashSet();
final boolean specifiesResultClasses = resultClasses != null && resultClasses.length > 0;
final boolean specifiesResultSetMappings = resultSetMappings != null && resultSetMappings.length > 0;
if ( specifiesResultClasses ) {
Util.resolveResultClasses(
new Util.ResultClassesResolutionContext() {
@Override
public SessionFactoryImplementor getSessionFactory() {
return sessionFactory;
}
@Override
public void addQueryReturns(NativeSQLQueryReturn... queryReturns) {
Collections.addAll( collectedQueryReturns, queryReturns );
}
@Override
public void addQuerySpaces(String... spaces) {
Collections.addAll( collectedQuerySpaces, spaces );
}
},
resultClasses
);
}
else if ( specifiesResultSetMappings ) {
Util.resolveResultSetMappings(
new Util.ResultSetMappingResolutionContext() {
@Override
public SessionFactoryImplementor getSessionFactory() {
return sessionFactory;
}
@Override
public ResultSetMappingDefinition findResultSetMapping(String name) {
return resultSetMappingDefinitions.get( name );
}
@Override
public void addQueryReturns(NativeSQLQueryReturn... queryReturns) {
Collections.addAll( collectedQueryReturns, queryReturns );
}
@Override
public void addQuerySpaces(String... spaces) {
Collections.addAll( collectedQuerySpaces, spaces );
}
},
resultSetMappings
);
}
return new ProcedureCallMementoImpl(
procedureName,
collectedQueryReturns.toArray( new NativeSQLQueryReturn[ collectedQueryReturns.size() ] ),
parameterDefinitions.getParameterStrategy(),
parameterDefinitions.toMementos( sessionFactory ),
collectedQuerySpaces,
hints
);
}
static class ParameterDefinitions {
private final ParameterStrategy parameterStrategy;
private final ParameterDefinition[] parameterDefinitions;
ParameterDefinitions(StoredProcedureParameter[] parameters) {
if ( parameters == null || parameters.length == 0 ) {
parameterStrategy = ParameterStrategy.POSITIONAL;
parameterDefinitions = new ParameterDefinition[0];
}
else {
parameterStrategy = StringHelper.isNotEmpty( parameters[0].name() )
? ParameterStrategy.NAMED
: ParameterStrategy.POSITIONAL;
parameterDefinitions = new ParameterDefinition[ parameters.length ];
for ( int i = 0; i < parameters.length; i++ ) {
// i+1 for the position because the apis say the numbers are 1-based, not zero
parameterDefinitions[i] = new ParameterDefinition( i+1, parameters[i] );
}
}
}
public ParameterStrategy getParameterStrategy() {
return parameterStrategy;
}
public List toMementos(SessionFactoryImpl sessionFactory) {
final List mementos = new ArrayList();
for ( ParameterDefinition definition : parameterDefinitions ) {
mementos.add(definition.toMemento( sessionFactory ));
}
return mementos;
}
}
static class ParameterDefinition {
private final Integer position;
private final String name;
private final ParameterMode parameterMode;
private final Class type;
ParameterDefinition(int position, StoredProcedureParameter annotation) {
this.position = position;
this.name = normalize( annotation.name() );
this.parameterMode = annotation.mode();
this.type = annotation.type();
}
public ParameterMemento toMemento(SessionFactoryImpl sessionFactory) {
return new ParameterMemento(
position,
name,
parameterMode,
type,
sessionFactory.getTypeResolver().heuristicType( type.getName() )
);
}
}
private static String normalize(String name) {
return StringHelper.isNotEmpty( name ) ? name : null;
}
}
