Package elki.database.ids.integer

Class FastutilIntOpenHashSetModifiableDBIDs

java.lang.Object

elki.database.ids.integer.FastutilIntOpenHashSetModifiableDBIDs

All Implemented Interfaces:

DBIDs, HashSetDBIDs, HashSetModifiableDBIDs, IntegerDBIDs, ModifiableDBIDs, SetDBIDs

class FastutilIntOpenHashSetModifiableDBIDs
extends java.lang.Object
implements HashSetModifiableDBIDs, IntegerDBIDs

Implementation using Fastutil IntSet.

Since:

0.5.0

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	FastutilIntOpenHashSetModifiableDBIDs.IntOpenHashSet	Customized table.
protected static class	FastutilIntOpenHashSetModifiableDBIDs.Itr	Iterator over Fastutil hashs.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) FastutilIntOpenHashSetModifiableDBIDs.IntOpenHashSet	store	The actual store.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	FastutilIntOpenHashSetModifiableDBIDs()	Constructor.
protected	FastutilIntOpenHashSetModifiableDBIDs(int size)	Constructor.
protected	FastutilIntOpenHashSetModifiableDBIDs(DBIDs existing)	Constructor.

Method Summary

Modifier and Type	Method	Description
boolean	add(DBIDRef e)	Add a single DBID to the collection.
boolean	addDBIDs(DBIDs ids)	Add DBIDs to collection.
FastutilIntOpenHashSetModifiableDBIDs	clear()	Clear this collection.
boolean	contains(DBIDRef o)	Test whether an ID is contained.
boolean	isEmpty()	Test for an empty DBID collection.
FastutilIntOpenHashSetModifiableDBIDs.Itr	iter()	Get a DBID iterator (a more efficient API).
DBIDVar	pop(DBIDVar outvar)	Pop (get and remove) one DBID from the set, into a variable.
boolean	remove(DBIDRef o)	Remove a single DBID from the collection.
boolean	removeDBIDs(DBIDs ids)	Remove DBIDs from collection.
boolean	retainAll(DBIDs set)	Retain all elements that also are in the second set.
int	size()	Retrieve the collection / data size.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface elki.database.ids.DBIDs

forEach

Field Detail

store

FastutilIntOpenHashSetModifiableDBIDs.IntOpenHashSet store

The actual store.

Constructor Detail

FastutilIntOpenHashSetModifiableDBIDs

protected FastutilIntOpenHashSetModifiableDBIDs(int size)

Constructor.

Parameters:

size - Initial size

FastutilIntOpenHashSetModifiableDBIDs

protected FastutilIntOpenHashSetModifiableDBIDs()

Constructor.

FastutilIntOpenHashSetModifiableDBIDs

protected FastutilIntOpenHashSetModifiableDBIDs(DBIDs existing)

Constructor.

Parameters:

existing - Existing IDs

Method Detail

iter

public FastutilIntOpenHashSetModifiableDBIDs.Itr iter()

Description copied from interface: DBIDs

Get a DBID iterator (a more efficient API).

Example:

 
 for(DBIDIter iter = ids.iter(); iter.valid(); iter.advance()) {
   NumberVector vec = relation.get(iter); // iter is a temporary object reference
 }
 
 

Specified by:

iter in interface DBIDs

Specified by:

iter in interface HashSetModifiableDBIDs

Specified by:

iter in interface IntegerDBIDs

Specified by:

iter in interface ModifiableDBIDs

Returns:

iterator

addDBIDs

public boolean addDBIDs(DBIDs ids)

Description copied from interface: ModifiableDBIDs

Add DBIDs to collection.

Specified by:

addDBIDs in interface ModifiableDBIDs

Parameters:

ids - IDs to add.

Returns:

true if the collection changed.

removeDBIDs

public boolean removeDBIDs(DBIDs ids)

Description copied from interface: ModifiableDBIDs

Remove DBIDs from collection.

Specified by:

removeDBIDs in interface ModifiableDBIDs

Parameters:

ids - IDs to remove.

Returns:

true if the collection changed.

add

public boolean add(DBIDRef e)

Description copied from interface: ModifiableDBIDs

Add a single DBID to the collection.

Specified by:

add in interface ModifiableDBIDs

Parameters:

e - ID to add

Returns:

true if the collection changed.

remove

public boolean remove(DBIDRef o)

Description copied from interface: ModifiableDBIDs

Remove a single DBID from the collection.

Specified by:

remove in interface ModifiableDBIDs

Parameters:

o - ID to remove

Returns:

true if the collection changed.

retainAll

public boolean retainAll(DBIDs set)

Description copied from interface: HashSetModifiableDBIDs

Retain all elements that also are in the second set.

Specified by:

retainAll in interface HashSetModifiableDBIDs

Parameters:

set - second set

Returns:

true when modified

size

public int size()

Description copied from interface: DBIDs

Retrieve the collection / data size.

Specified by:

size in interface DBIDs

Returns:

collection size

isEmpty

public boolean isEmpty()

Description copied from interface: DBIDs

Test for an empty DBID collection.

Specified by:

isEmpty in interface DBIDs

Returns:

true when empty.

clear

public FastutilIntOpenHashSetModifiableDBIDs clear()

Description copied from interface: ModifiableDBIDs

Clear this collection.

Specified by:

clear in interface HashSetModifiableDBIDs

Specified by:

clear in interface ModifiableDBIDs

contains

public boolean contains(DBIDRef o)

Description copied from interface: DBIDs

Test whether an ID is contained.

Specified by:

contains in interface DBIDs

Parameters:

o - object to test

Returns:

true when contained

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

pop

public DBIDVar pop(DBIDVar outvar)

Description copied from interface: ModifiableDBIDs

Pop (get and remove) one DBID from the set, into a variable.

Specified by:

pop in interface ModifiableDBIDs

Parameters:

outvar - Output variable

Returns:

Always outvar, for inlining