/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2012, 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.procedure.internal;
import java.sql.CallableStatement;
import java.sql.ResultSet;
import org.hibernate.engine.jdbc.cursor.spi.RefCursorSupport;
import org.hibernate.procedure.ParameterRegistration;
import org.hibernate.procedure.ProcedureOutputs;
import org.hibernate.procedure.spi.ParameterRegistrationImplementor;
import org.hibernate.result.Output;
import org.hibernate.result.internal.OutputsImpl;
/**
* Implementation of ProcedureResult. Defines centralized access to all of the results of a procedure call.
*
* @author Steve Ebersole
*/
public class ProcedureOutputsImpl extends OutputsImpl implements ProcedureOutputs {
private final ProcedureCallImpl procedureCall;
private final CallableStatement callableStatement;
private final ParameterRegistrationImplementor[] refCursorParameters;
private int refCursorParamIndex;
ProcedureOutputsImpl(ProcedureCallImpl procedureCall, CallableStatement callableStatement) {
super( procedureCall, callableStatement );
this.procedureCall = procedureCall;
this.callableStatement = callableStatement;
this.refCursorParameters = procedureCall.collectRefCursorParameters();
}
@Override
public <T> T getOutputParameterValue(ParameterRegistration<T> parameterRegistration) {
return ( (ParameterRegistrationImplementor<T>) parameterRegistration ).extract( callableStatement );
}
@Override
public Object getOutputParameterValue(String name) {
return procedureCall.getParameterRegistration( name ).extract( callableStatement );
}
@Override
public Object getOutputParameterValue(int position) {
return procedureCall.getParameterRegistration( position ).extract( callableStatement );
}
@Override
protected CurrentReturnState buildCurrentReturnState(boolean isResultSet, int updateCount) {
return new ProcedureCurrentReturnState( isResultSet, updateCount, refCursorParamIndex );
}
protected class ProcedureCurrentReturnState extends CurrentReturnState {
private final int refCursorParamIndex;
private ProcedureCurrentReturnState(boolean isResultSet, int updateCount, int refCursorParamIndex) {
super( isResultSet, updateCount );
this.refCursorParamIndex = refCursorParamIndex;
}
@Override
public boolean indicatesMoreOutputs() {
return super.indicatesMoreOutputs()
|| ProcedureOutputsImpl.this.refCursorParamIndex < ProcedureOutputsImpl.this.refCursorParameters.length;
}
@Override
protected boolean hasExtendedReturns() {
return refCursorParamIndex < refCursorParameters.length;
}
@Override
protected Output buildExtendedReturn() {
ProcedureOutputsImpl.this.refCursorParamIndex++;
final ParameterRegistrationImplementor refCursorParam = ProcedureOutputsImpl.this.refCursorParameters[refCursorParamIndex];
ResultSet resultSet;
if ( refCursorParam.getName() != null ) {
resultSet = ProcedureOutputsImpl.this.procedureCall.getSession().getFactory().getServiceRegistry()
.getService( RefCursorSupport.class )
.getResultSet( ProcedureOutputsImpl.this.callableStatement, refCursorParam.getName() );
}
else {
resultSet = ProcedureOutputsImpl.this.procedureCall.getSession().getFactory().getServiceRegistry()
.getService( RefCursorSupport.class )
.getResultSet( ProcedureOutputsImpl.this.callableStatement, refCursorParam.getPosition() );
}
return buildResultSetOutput( extractResults( resultSet ) );
}
}
}