com.helger.commons.aggregate

Interface IAggregator<SRCTYPE,DSTTYPE>

Type Parameters:

SRCTYPE - The input type.

DSTTYPE - The output type.

All Known Implementing Classes:

AbstractAggregator, AggregatorAlwaysNull, AggregatorConstant, AggregatorString, AggregatorStringIgnoreNull, AggregatorStringWithSeparator, AggregatorStringWithSeparatorIgnoreNull, AggregatorUseAll, AggregatorUseFirst, AggregatorUseLast

public interface IAggregator<SRCTYPE,DSTTYPE>

Aggregate a list of input objects to an output object.

Author:

Philip Helger

Method Summary

Modifier and Type	Method and Description
DSTTYPE	aggregate(Collection<SRCTYPE> aObjects) Aggregate a collection of input objects to a single output object.
DSTTYPE	aggregate(SRCTYPE... aObjects) Aggregate a collection of input objects to a single output object.

Method Detail

aggregate

@Nullable
DSTTYPE aggregate(@Nonnull
                             Collection<SRCTYPE> aObjects)

Aggregate a collection of input objects to a single output object.

Parameters:

aObjects - Source objects. May not be null.

Returns:

The aggregated object. May be null.

aggregate

@Nullable
DSTTYPE aggregate(@Nonnull
                             SRCTYPE... aObjects)

Aggregate a collection of input objects to a single output object.

Parameters:

aObjects - Source objects. May not be null.

Returns:

The aggregated object. May be null.