com.holonplatform.core.query

Interface NumericQueryExpression<N extends Number>

Type Parameters:

N - Numeric expression type

All Superinterfaces:

Expression, QueryExpression<N>, TypedExpression<N>

All Known Subinterfaces:

NumericBeanProperty<N>, NumericProperty<N>, NumericProperty.NumericPropertyBuilder<N>, QueryFunction.Avg, QueryFunction.Count, QueryFunction.Sum<T>, TemporalFunction.Day, TemporalFunction.Hour, TemporalFunction.Month, TemporalFunction.Year

public interface NumericQueryExpression<N extends Number>
extends QueryExpression<N>

A QueryExpression of Number type.

Since:

5.1.0

Nested Class Summary

Nested classes/interfaces inherited from interface com.holonplatform.core.Expression

Expression.ExpressionResolverFunction<E extends Expression,R extends Expression>, Expression.InvalidExpressionException

Method Summary

Modifier and Type	Method and Description
default QueryFunction.Avg	avg() Creates an aggregation function which returns the average value of expression.
default QueryFunction.Sum<N>	sum() Creates an aggregation function which returns the sum of the expression values.

Methods inherited from interface com.holonplatform.core.query.QueryExpression

between, count, eq, eq, goe, goe, gt, gt, in, in, in, isNotNull, isNull, loe, loe, lt, lt, max, min, neq, neq, nin, nin, nin

Methods inherited from interface com.holonplatform.core.TypedExpression

getTemporalType, getType, isCollectionExpression, isConverterExpression

Methods inherited from interface com.holonplatform.core.Expression

validate

Method Detail

avg

default QueryFunction.Avg avg()

Creates an aggregation function which returns the average value of expression.

The returned function is a QueryFunction.PropertyQueryFunction, to allow inclusion in property sets and handling within a PropertyBox.

Returns:

A new QueryFunction.Avg aggregation function expression

sum

default QueryFunction.Sum<N> sum()

Creates an aggregation function which returns the sum of the expression values.

The returned function is a QueryFunction.PropertyQueryFunction, to allow inclusion in property sets and handling within a PropertyBox.

Returns:

A new QueryFunction.Sum aggregation function expression