org.hibernate.procedure.internal.ProcedureOutputsImpl Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.procedure.internal;
import java.sql.CallableStatement;
import java.sql.ResultSet;
import java.util.List;
import java.util.function.Supplier;
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 getOutputParameterValue(ParameterRegistration parameterRegistration) {
return ( (ParameterRegistrationImplementor) 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 ) );
}
}
}
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