de.lmu.ifi.dbs.elki.database.ids
Class EmptyDBIDs

java.lang.Object
  java.util.AbstractCollection<E>
      java.util.AbstractList<DBID>
          de.lmu.ifi.dbs.elki.database.ids.EmptyDBIDs

All Implemented Interfaces:

ArrayDBIDs, ArrayStaticDBIDs, DBIDs, StaticDBIDs, Iterable<DBID>, Collection<DBID>, List<DBID>

 class EmptyDBIDs
extends AbstractList<DBID>
implements ArrayStaticDBIDs

Empty DBID collection.

Field Summary

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

EmptyDBIDs()

Method Summary

Collection<DBID>	asCollection() Retrieve collection access to the IDs
boolean	contains(Object o) Test whether an ID is contained.
DBID	get(int i)
boolean	isEmpty() Test for an empty DBID collection.
Iterator<DBID>	iterator() Retrieve Iterator access to the IDs.
int	size() Retrieve the collection / data size.

Methods inherited from class java.util.AbstractList

add, add, addAll, clear, equals, hashCode, indexOf, lastIndexOf, listIterator, listIterator, remove, removeRange, set, subList

Methods inherited from class java.util.AbstractCollection

addAll, containsAll, remove, removeAll, retainAll, toArray, toArray, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.List

add, add, addAll, addAll, clear, containsAll, equals, hashCode, indexOf, lastIndexOf, listIterator, listIterator, remove, remove, removeAll, retainAll, set, subList, toArray, toArray

Constructor Detail

EmptyDBIDs

EmptyDBIDs()

Method Detail

asCollection

public Collection<DBID> asCollection()

Description copied from interface: DBIDs

Retrieve collection access to the IDs

Specified by:

asCollection in interface DBIDs

Returns:

a collection of IDs

contains

public boolean contains(Object o)

Description copied from interface: DBIDs

Test whether an ID is contained. Signature compatible with Collection.

Specified by:

contains in interface DBIDs

Specified by:

contains in interface Collection<DBID>

Specified by:

contains in interface List<DBID>

Overrides:

contains in class AbstractCollection<DBID>

Parameters:

o - object to test

Returns:

true when contained

iterator

public Iterator<DBID> iterator()

Description copied from interface: DBIDs

Retrieve Iterator access to the IDs.

Specified by:

iterator in interface DBIDs

Specified by:

iterator in interface Iterable<DBID>

Specified by:

iterator in interface Collection<DBID>

Specified by:

iterator in interface List<DBID>

Overrides:

iterator in class AbstractList<DBID>

Returns:

an iterator for the IDs

size

public int size()

Description copied from interface: DBIDs

Retrieve the collection / data size.

Specified by:

size in interface DBIDs

Specified by:

size in interface Collection<DBID>

Specified by:

size in interface List<DBID>

Specified by:

size in class AbstractCollection<DBID>

Returns:

collection size

isEmpty

public boolean isEmpty()

Description copied from interface: DBIDs

Test for an empty DBID collection.

Specified by:

isEmpty in interface DBIDs

Specified by:

isEmpty in interface Collection<DBID>

Specified by:

isEmpty in interface List<DBID>

Overrides:

isEmpty in class AbstractCollection<DBID>

Returns:

true when empty.

get

public DBID get(int i)

Specified by:

get in interface List<DBID>

Specified by:

get in class AbstractList<DBID>