Interface Predicate

All Superinterfaces:

DomainResultProducer<Boolean>, Expression, SqlAstNode, SqlSelectionProducer

All Known Implementing Classes:

AbstractPredicate, BetweenPredicate, BooleanExpressionPredicate, ComparisonPredicate, ExistsPredicate, FilterPredicate, FilterPredicate.FilterFragmentPredicate, GroupedPredicate, InArrayPredicate, InListPredicate, InSubQueryPredicate, Junction, LikePredicate, NegatedPredicate, NullnessPredicate, SelfRenderingPredicate, SqlFragmentPredicate, ThruthnessPredicate

public interface Predicate
extends Expression, DomainResultProducer<Boolean>

Models a predicate in the SQL AST

Method Summary

Modifier and Type	Method	Description
default void	applySqlSelections(DomainResultCreationState creationState)	Used when this producer is a selection in a sub-query.
static Predicate	combinePredicates(Predicate p1, Predicate p2)	Short-cut for SqlAstTreeHelper.combinePredicates(Predicate, Predicate)
default DomainResult<Boolean>	createDomainResult(String resultVariable, DomainResultCreationState creationState)	Produce the domain query
boolean	isEmpty()

Methods inherited from interface Expression

createDomainResultSqlSelection, createSqlSelection, getColumnReference, getExpressionType

Methods inherited from interface SqlAstNode

accept

Method Details

combinePredicates

static Predicate combinePredicates(Predicate p1,
 Predicate p2)

Short-cut for SqlAstTreeHelper.combinePredicates(Predicate, Predicate)

isEmpty

boolean isEmpty()

createDomainResult

default DomainResult<Boolean> createDomainResult(String resultVariable,
 DomainResultCreationState creationState)

Description copied from interface: DomainResultProducer

Produce the domain query

Specified by:

createDomainResult in interface DomainResultProducer<Boolean>

applySqlSelections

default 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<Boolean>