Package com.globalmentor.collections

Class AbstractConverterCollection<S,D>

java.lang.Object

com.globalmentor.collections.CollectionDecorator<D>

com.globalmentor.collections.AbstractConverterCollection<S,D>

Type Parameters:

S - The type of element contained in the source collection.

D - The type of element contained in the destination collection.

All Implemented Interfaces:

Iterable<D>, Collection<D>

public abstract class AbstractConverterCollection<S,D>
extends CollectionDecorator<D>

A collection that provides access to another collection, automatically converting elements to objects possibly of a different type. The conversion is done on the fly as elements are requested, and not before.

Author:

Garret Wilson

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	AbstractConverterCollection.ConverterIterator	A custom proxied iterator that converts returned elements on the fly.

Field Summary

Fields inherited from class com.globalmentor.collections.CollectionDecorator

collection

Constructor Summary

Constructors

Constructor	Description
AbstractConverterCollection(Collection<S> collection)	Collection constructor.

Method Summary

Modifier and Type	Method	Description
protected abstract D	convert(S source)	Converts an object in the collection to another object.
Iterator<D>	iterator()

Methods inherited from class com.globalmentor.collections.CollectionDecorator

add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, parallelStream, remove, removeAll, removeIf, retainAll, size, spliterator, stream, toArray, toArray

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach

Constructor Details

AbstractConverterCollection

public AbstractConverterCollection(Collection<S> collection)

Collection constructor.

Parameters:

collection - The collection the elements of which this collection should convert.

Method Details

convert

protected abstract D convert(S source)

Converts an object in the collection to another object.

Parameters:

source - The object to convert.

Returns:

The converted object.

iterator

public Iterator<D> iterator()

Specified by:

iterator in interface Collection<S>

Specified by:

iterator in interface Iterable<S>

Overrides:

iterator in class CollectionDecorator<D>

Returns:

A custom proxied iterator that will convert returned elements on the fly.