Interface BooleanExpression

All Superinterfaces:

ComparableExpression<Boolean>, Expression<Boolean>, Selection<Boolean>, TupleElement<Boolean>

All Known Subinterfaces:

BooleanPath, CriteriaBuilder.In<T>, Predicate

public interface BooleanExpression
extends ComparableExpression<Boolean>

Type for boolean query expressions.

Since:

4.0

Method Summary

Modifier and Type	Method	Description
Predicate	and(Expression<Boolean> y)	Create a conjunction of this and the given boolean expressions.
BooleanExpression	coalesce(Expression<? extends Boolean> y)	Create an expression that returns null if this and the argument evaluate to null, and the value of the first non-null expression otherwise.
BooleanExpression	coalesce(Boolean y)	Create an expression that returns null if this and the argument evaluate to null, and the value of the first non-null expression otherwise.
Predicate	not()	Create a negation of this restriction.
BooleanExpression	nullif(Expression<? extends Boolean> y)	Create an expression that tests whether this expression is equal to the argument, returning null if they are and the value of the first expression if they are not.
BooleanExpression	nullif(Boolean y)	Create an expression that tests whether this expression is equal to the argument, returning null if they are and the value of the first expression if they are not.
Predicate	or(Expression<Boolean> y)	Create a disjunction of this and the given boolean expressions.

Methods inherited from interface ComparableExpression

asc, asc, between, between, desc, desc, greaterThan, greaterThan, greaterThanOrEqualTo, greaterThanOrEqualTo, lessThan, lessThan, lessThanOrEqualTo, lessThanOrEqualTo, max, min

Methods inherited from interface Expression

as, cast, count, countDistinct, equalTo, equalTo, in, in, in, in, in, isMember, isNotMember, isNotNull, isNull, notEqualTo, notEqualTo, selectCase

Methods inherited from interface Selection

alias, getCompoundSelectionItems, isCompoundSelection

Methods inherited from interface TupleElement

getAlias, getJavaType

Method Details

and

Predicate and(Expression<Boolean> y)

Create a conjunction of this and the given boolean expressions.

Parameters:

y - boolean expression

Returns:

and predicate

See Also:

• CriteriaBuilder.and(Expression, Expression)

or

Predicate or(Expression<Boolean> y)

Create a disjunction of this and the given boolean expressions.

Parameters:

y - boolean expression

Returns:

or predicate

See Also:

• CriteriaBuilder.or(Expression, Expression)

not

Predicate not()

Create a negation of this restriction.

Returns:

not predicate

See Also:

• CriteriaBuilder.not(Expression)

coalesce

BooleanExpression coalesce(Boolean y)

Description copied from interface: Expression

Create an expression that returns null if this and the argument evaluate to null, and the value of the first non-null expression otherwise.

Specified by:

coalesce in interface ComparableExpression<Boolean>

Specified by:

coalesce in interface Expression<Boolean>

Parameters:

y - value

Returns:

coalesce expression

coalesce

BooleanExpression coalesce(Expression<? extends Boolean> y)

Description copied from interface: Expression

Create an expression that returns null if this and the argument evaluate to null, and the value of the first non-null expression otherwise.

Specified by:

coalesce in interface ComparableExpression<Boolean>

Specified by:

coalesce in interface Expression<Boolean>

Parameters:

y - expression

Returns:

coalesce expression

nullif

BooleanExpression nullif(Boolean y)

Description copied from interface: Expression

Create an expression that tests whether this expression is equal to the argument, returning null if they are and the value of the first expression if they are not.

Specified by:

nullif in interface ComparableExpression<Boolean>

Specified by:

nullif in interface Expression<Boolean>

Parameters:

y - value

Returns:

nullif expression

nullif

BooleanExpression nullif(Expression<? extends Boolean> y)

Description copied from interface: Expression

Create an expression that tests whether this expression is equal to the argument, returning null if they are and the value of the first expression if they are not.

Specified by:

nullif in interface ComparableExpression<Boolean>

Specified by:

nullif in interface Expression<Boolean>

Parameters:

y - expression

Returns:

nullif expression