org.openjdk.jmc.common.item

Interface IItemCollection

All Superinterfaces:

Iterable<IItemIterable>

public interface IItemCollection
extends Iterable<IItemIterable>

An immutable collection of items.

Method Summary

Modifier and Type	Method and Description
IItemCollection	apply(IItemFilter filter) Creates a new item collection with all items in this collection that pass through the filter.
<V,C extends IItemConsumer<C>> V	getAggregate(IAggregator<V,C> aggregator) Calculates an aggregated value for the items in this collection.
boolean	hasItems()

Methods inherited from interface java.lang.Iterable

forEach, iterator, spliterator

Method Detail

apply

IItemCollection apply(IItemFilter filter)

Creates a new item collection with all items in this collection that pass through the filter. The collection may be eagerly or lazily evaluated.

Parameters:

filter - the filter to use when selecting items for the new collection

Returns:

a new collection of items

getAggregate

<V,C extends IItemConsumer<C>> V getAggregate(IAggregator<V,C> aggregator)

Calculates an aggregated value for the items in this collection.

Type Parameters:

V - aggregate result value type

C - Item consumer type. See IAggregator.

Returns:

the aggregated value

hasItems

boolean hasItems()

Returns:

true if the collections contains items, false otherwise