de.lmu.ifi.dbs.elki.database.relation

Class RelationUtil.CollectionFromRelation<O>

java.lang.Object

java.util.AbstractCollection<O>

de.lmu.ifi.dbs.elki.database.relation.RelationUtil.CollectionFromRelation<O>

All Implemented Interfaces:

java.lang.Iterable<O>, java.util.Collection<O>

Enclosing class:

RelationUtil

public static class RelationUtil.CollectionFromRelation<O>
extends java.util.AbstractCollection<O>
implements java.util.Collection<O>

Collection view on a database that retrieves the objects when needed.

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
(package private) Relation<? extends O>	db The database we query.

Constructor Summary

Constructors

Constructor and Description
CollectionFromRelation(Relation<? extends O> db) Constructor.

Method Summary

Modifier and Type	Method and Description
java.util.Iterator<O>	iterator()
int	size()

Methods inherited from class java.util.AbstractCollection

add, addAll, clear, contains, containsAll, isEmpty, 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

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

Methods inherited from interface java.lang.Iterable

forEach

Field Detail

db

Relation<? extends O> db

The database we query.

Constructor Detail

CollectionFromRelation

public CollectionFromRelation(Relation<? extends O> db)

Constructor.

Parameters:

db - Database

Method Detail

iterator

public java.util.Iterator<O> iterator()

Specified by:

iterator in interface java.lang.Iterable<O>

Specified by:

iterator in interface java.util.Collection<O>

Specified by:

iterator in class java.util.AbstractCollection<O>

size

public int size()

Specified by:

size in interface java.util.Collection<O>

Specified by:

size in class java.util.AbstractCollection<O>