org.hibernate.loader.plan.spi

Class ScalarReturn

java.lang.Object

org.hibernate.loader.plan.spi.AbstractPlanNode

org.hibernate.loader.plan.spi.ScalarReturn

All Implemented Interfaces:

Return

public class ScalarReturn
extends AbstractPlanNode
implements Return

Represent a simple scalar return within a query result. Generally this would be values of basic (String, Integer, etc) or composite types.

Constructor Summary

Constructors

Constructor and Description
ScalarReturn(SessionFactoryImplementor factory, Type type)

Method Summary

Methods

Modifier and Type	Method and Description
Type	getType()
void	hydrate(ResultSet resultSet, ResultSetProcessingContext context)
Object	read(ResultSet resultSet, ResultSetProcessingContext context) Essentially performs the second phase of two-phase loading.
void	resolve(ResultSet resultSet, ResultSetProcessingContext context) Effectively performs first phase of two-phase loading.

Methods inherited from class org.hibernate.loader.plan.spi.AbstractPlanNode

sessionFactory

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ScalarReturn

public ScalarReturn(SessionFactoryImplementor factory,
            Type type)

Method Detail

getType

public Type getType()

hydrate

public void hydrate(ResultSet resultSet,
           ResultSetProcessingContext context)

Specified by:

hydrate in interface Return

resolve

public void resolve(ResultSet resultSet,
           ResultSetProcessingContext context)

Description copied from interface: Return

Effectively performs first phase of two-phase loading. For scalar results first/second phase is one. For entities, first phase is to resolve identifiers; second phase is to resolve the entity instances.

Specified by:

resolve in interface Return

Parameters:

resultSet - The result set being processed

context - The context for the processing

read

public Object read(ResultSet resultSet,
          ResultSetProcessingContext context)
            throws SQLException

Description copied from interface: Return

Essentially performs the second phase of two-phase loading.

Specified by:

read in interface Return

Parameters:

resultSet - The result set being processed

context - The context for the processing

Returns:

The read object

Throws:

SQLException - Indicates a problem access the JDBC result set