javax.jdo.query

Interface BooleanExpression

All Superinterfaces:

ComparableExpression<Boolean>, Expression<Boolean>

public interface BooleanExpression
extends ComparableExpression<Boolean>

Representation of a boolean expression.

Method Summary

Modifier and Type	Method and Description
BooleanExpression	and(BooleanExpression expr) Method to return the AND of this expression and the other expression.
BooleanExpression	neg() Method to return an expression that is the current expression negated.
BooleanExpression	not() Method to negate this expression.
BooleanExpression	or(BooleanExpression expr) Method to return the OR of this expression and the other expression.

Methods inherited from interface javax.jdo.query.ComparableExpression

asc, desc, gt, gt, gteq, gteq, lt, lt, lteq, lteq, max, min

Methods inherited from interface javax.jdo.query.Expression

as, cast, count, countDistinct, eq, eq, instanceOf, ne, ne

Method Detail

and

BooleanExpression and(BooleanExpression expr)

Method to return the AND of this expression and the other expression.

Parameters:

expr - The other expression

Returns:

The resultant (boolean) expression

or

BooleanExpression or(BooleanExpression expr)

Method to return the OR of this expression and the other expression.

Parameters:

expr - The other expression

Returns:

The resultant (boolean) expression

not

BooleanExpression not()

Method to negate this expression.

Returns:

The negated expression

neg

BooleanExpression neg()

Method to return an expression that is the current expression negated.

Returns:

The negated expression