javax.jdo.query

Interface ComparableExpression<T>

Type Parameters:

T - Java type being represented here

All Superinterfaces:

Expression<T>

All Known Subinterfaces:

BooleanExpression, ByteExpression, CharacterExpression, DateExpression, DateTimeExpression, EnumExpression<T>, IfThenElseExpression<T>, LocalDateExpression, LocalDateTimeExpression, LocalTimeExpression, NumericExpression<T>, OptionalExpression<T>, StringExpression, TimeExpression

public interface ComparableExpression<T>
extends Expression<T>

Representation of an expression for a Java type that implements java.lang.Comparable.

Method Summary

Modifier and Type	Method and Description
OrderExpression<T>	asc() Method to return an order expression for this expression in ascending order.
OrderExpression<T>	desc() Method to return an order expression for this expression in descending order.
BooleanExpression	gt(ComparableExpression<? extends T> expr) Method returning whether this expression is greater than the other expression.
BooleanExpression	gt(T t) Method returning whether this expression is greater than the literal.
BooleanExpression	gteq(ComparableExpression<? extends T> expr) Method returning whether this expression is greater than or equal the other expression.
BooleanExpression	gteq(T t) Method returning whether this expression is greater than or equal the literal.
BooleanExpression	lt(ComparableExpression<? extends T> expr) Method returning whether this expression is less than the other expression.
BooleanExpression	lt(T t) Method returning whether this expression is less than the literal.
BooleanExpression	lteq(ComparableExpression<? extends T> expr) Method returning whether this expression is less than or equal the other expression.
BooleanExpression	lteq(T t) Method returning whether this expression is less than or equal the literal.
ComparableExpression<T>	max() Method to return a numeric expression representing the aggregated maximum of this expression.
ComparableExpression<T>	min() Method to return a numeric expression representing the aggregated minimum of this expression.

Methods inherited from interface javax.jdo.query.Expression

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

Method Detail

lt

BooleanExpression lt(ComparableExpression<? extends T> expr)

Method returning whether this expression is less than the other expression.

Parameters:

expr - Other expression

Returns:

Whether this is less than the other

lt

BooleanExpression lt(T t)

Method returning whether this expression is less than the literal.

Parameters:

t - literal

Returns:

Whether this is less than the other

lteq

BooleanExpression lteq(ComparableExpression<? extends T> expr)

Method returning whether this expression is less than or equal the other expression.

Parameters:

expr - Other expression

Returns:

Whether this is less than or equal the other

lteq

BooleanExpression lteq(T t)

Method returning whether this expression is less than or equal the literal.

Parameters:

t - literal

Returns:

Whether this is less than or equal the other

gt

BooleanExpression gt(ComparableExpression<? extends T> expr)

Method returning whether this expression is greater than the other expression.

Parameters:

expr - Other expression

Returns:

Whether this is greater than the other

gt

BooleanExpression gt(T t)

Method returning whether this expression is greater than the literal.

Parameters:

t - literal

Returns:

Whether this is greater than the other

gteq

BooleanExpression gteq(ComparableExpression<? extends T> expr)

Method returning whether this expression is greater than or equal the other expression.

Parameters:

expr - Other expression

Returns:

Whether this is greater than or equal to the other

gteq

BooleanExpression gteq(T t)

Method returning whether this expression is greater than or equal the literal.

Parameters:

t - literal

Returns:

Whether this is greater than or equal to the other

min

ComparableExpression<T> min()

Method to return a numeric expression representing the aggregated minimum of this expression.

Returns:

expression for the minimum

max

ComparableExpression<T> max()

Method to return a numeric expression representing the aggregated maximum of this expression.

Returns:

expression for the maximum

asc

OrderExpression<T> asc()

Method to return an order expression for this expression in ascending order.

Returns:

The order expression

desc

OrderExpression<T> desc()

Method to return an order expression for this expression in descending order.

Returns:

The order expression