org.openstreetmap.josm.tools

Class SubclassFilteredCollection<S,T extends S>

java.lang.Object

java.util.AbstractCollection<T>

org.openstreetmap.josm.tools.SubclassFilteredCollection<S,T>

Type Parameters:

S - element type of the underlying collection

T - element type of filtered collection (and subclass of S). The predicate must accept only objects of type T.

All Implemented Interfaces:

Iterable<T>, Collection<T>

Direct Known Subclasses:

FilteredCollection

public class SubclassFilteredCollection<S,T extends S>
extends AbstractCollection<T>

Filtered view of a collection. (read-only collection, but elements can be changed, of course) Lets you iterate through those elements of a given collection that satisfy a certain condition (imposed by a predicate).

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private class	SubclassFilteredCollection.FilterIterator

Field Summary

Fields

Modifier and Type	Field and Description
private Collection<? extends S>	collection
private Predicate<? super S>	predicate
(package private) int	size

Constructor Summary

Constructors

Constructor and Description
SubclassFilteredCollection(Collection<? extends S> collection, Predicate<? super S> predicate)

Method Summary

Modifier and Type	Method and Description
boolean	isEmpty()
Iterator<T>	iterator()
int	size()

Methods inherited from class java.util.AbstractCollection

add, addAll, clear, contains, containsAll, remove, removeAll, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

equals, hashCode, parallelStream, removeIf, spliterator, stream

Methods inherited from interface java.lang.Iterable

forEach

Field Detail

collection

private final Collection<? extends S> collection

predicate

private final Predicate<? super S> predicate

size

int size

Constructor Detail

SubclassFilteredCollection

public SubclassFilteredCollection(Collection<? extends S> collection,
                                  Predicate<? super S> predicate)

Method Detail

iterator

public Iterator<T> iterator()

Specified by:

iterator in interface Iterable<T extends S>

Specified by:

iterator in interface Collection<T extends S>

Specified by:

iterator in class AbstractCollection<T extends S>

size

public int size()

Specified by:

size in interface Collection<T extends S>

Specified by:

size in class AbstractCollection<T extends S>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<T extends S>

Overrides:

isEmpty in class AbstractCollection<T extends S>