info.michaelwittig.javaq.query.column

Interface AggregatingNominal<T extends Type<?>>

Type Parameters:

T - Type

All Known Subinterfaces:

AggregatingOrdinal<T>

All Known Implementing Classes:

ASimpleNominalColumn, ASimpleOrdinalColumn, BooleanColumn, DateColumn, DateTimeColumn, FloatColumn, IntegerColumn, LongColumn, RealColumn, SymbolColumn, TimeColumn, TimestampColumn

public interface AggregatingNominal<T extends Type<?>>

Aggregating.

Author:

mwittig

Method Summary

Methods

Modifier and Type	Method and Description
AggregateColumn<T>	count()
AggregateColumn<T>	first()
AggregateColumn<T>	last()

Method Detail

first

AggregateColumn<T> first()

Returns:

First

last

AggregateColumn<T> last()

Returns:

Last

count

AggregateColumn<T> count()

Returns:

Count