Class Duration

java.lang.Object

org.hibernate.sql.ast.spi.query.expression.Duration

All Implemented Interfaces:

SqlSelectionProducer, Expression, DomainResultProducer, SqlAstNode

public class Duration
extends Object
implements Expression, DomainResultProducer

A duration expressed in terms of a given temporal unit. Represents a conversion of a scalar value to a Duration, by providing a duration unit.

See Also:

• which does the opposite

Constructor Summary

Constructors

Constructor	Description
Duration(Expression magnitude, 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
BasicValuedMapping	getExpressionType()	The type for this expression
Expression	getMagnitude()
TemporalUnit	getUnit()

Methods inherited from class Object

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

Methods inherited from interface Expression

createDomainResultSqlSelection, createSqlSelection, getColumnReference

Constructor Details

Duration

public Duration(Expression magnitude,
 TemporalUnit unit,
 BasicValuedMapping type)

Method Details

getUnit

public TemporalUnit getUnit()

getMagnitude

public Expression getMagnitude()

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 BasicValuedMapping getExpressionType()

Description copied from interface: Expression

The type for this expression

Specified by:

getExpressionType in interface Expression