Package org.hibernate.query.sqm.tree.expression

Class Conversion

java.lang.Object

org.hibernate.query.sqm.tree.expression.Conversion

All Implemented Interfaces:

DomainResultProducer, SqlSelectionProducer, Expression, SqlAstNode

public class Conversion
extends Object
implements Expression, DomainResultProducer

A conversion of a duration to a given temporal unit, as a result of applying the 'by unit' operator.

See Also:

• which does the opposite

Constructor Summary

Constructors

Constructor	Description
Conversion(Duration duration, TemporalUnit unit, BasicValuedMapping type)

Method Summary

Modifier and Type	Method	Description
void	accept(SqlAstWalker walker)
void	applySqlSelections(DomainResultCreationState creationState)	Used when this producer is a selection in a sub-query.
DomainResult	createDomainResult(String resultVariable, DomainResultCreationState creationState)	Produce the domain query
Duration	getDuration()
MappingModelExpressible	getExpressionType()	The type for this expression
TemporalUnit	getUnit()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.sql.ast.tree.expression.Expression

createDomainResultSqlSelection, createSqlSelection, getColumnReference

Constructor Details

Conversion

public Conversion(Duration duration,
 TemporalUnit unit,
 BasicValuedMapping type)

Method Details

getUnit

public TemporalUnit getUnit()

getDuration

public Duration getDuration()

accept

public void accept(SqlAstWalker walker)

Specified by:

accept in interface SqlAstNode

createDomainResult

public DomainResult createDomainResult(String resultVariable,
 DomainResultCreationState creationState)

Description copied from interface: DomainResultProducer

Produce the domain query

Specified by:

createDomainResult in interface DomainResultProducer

applySqlSelections

public void applySqlSelections(DomainResultCreationState creationState)

Description copied from interface: DomainResultProducer

Used when this producer is a selection in a sub-query. The DomainResult is only needed for root query of a SELECT statement. This default impl assumes this producer is a true (Sql)Expression

Specified by:

applySqlSelections in interface DomainResultProducer

getExpressionType

public MappingModelExpressible getExpressionType()

Description copied from interface: Expression

The type for this expression

Specified by:

getExpressionType in interface Expression