org.sql.generation.api.grammar.booleans
Interface ExistsPredicate

All Superinterfaces:

BooleanExpression, Predicate, org.atp.api.Typeable<ValueExpression>, UnaryPredicate, ValueExpression

public interface ExistsPredicate
extends UnaryPredicate

The interface for syntax element representing existence test (EXISTS).

Author:

Stanislav Muhametsin

Nested Class Summary

Nested classes/interfaces inherited from interface org.sql.generation.api.grammar.booleans.Predicate

Predicate.EmptyPredicate

Nested classes/interfaces inherited from interface org.sql.generation.api.grammar.booleans.BooleanExpression

BooleanExpression.False, BooleanExpression.True

Method Summary

QueryExpression

getValueExpression() Returns the query on which EXISTS operates on.

Methods inherited from interface org.atp.api.Typeable

getImplementedType

Method Detail

getValueExpression

QueryExpression getValueExpression()

Returns the query on which EXISTS operates on.

Specified by:

getValueExpression in interface UnaryPredicate

Returns:

The value expression for this predicate.