com.holonplatform.core.query

Interface QueryFunction.Count

All Superinterfaces:

Expression, QueryFunction<Long>

Enclosing interface:

QueryFunction<T>

public static interface QueryFunction.Count
extends QueryFunction<Long>

A function which represents the count of a query result values.

The result type is always a Long.

Nested Class Summary

Nested classes/interfaces inherited from interface com.holonplatform.core.query.QueryFunction

QueryFunction.Avg, QueryFunction.Count, QueryFunction.Max<T>, QueryFunction.Min<T>, QueryFunction.Sum<T>

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
static QueryFunction.Count	create() Create a new QueryFunction.Count function instance.

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

getResultType

Methods inherited from interface com.holonplatform.core.Expression

validate

Method Detail

create

static QueryFunction.Count create()

Create a new QueryFunction.Count function instance.

Returns:

New QueryFunction.Count function instance