Package elki.index.tree.spatial.kd

Class MemoryKDTree.CountingRelation

java.lang.Object

elki.index.tree.spatial.kd.MemoryKDTree.CountingRelation

All Implemented Interfaces:

Relation<O>

Enclosing class:

MemoryKDTree<O extends NumberVector>

private class MemoryKDTree.CountingRelation
extends java.lang.Object
implements Relation<O>

Proxy to count accesses.

Author:

Erich Schubert

Constructor Summary

Constructors

Modifier	Constructor	Description
private	CountingRelation()

Method Summary

Modifier and Type	Method	Description
O	get(DBIDRef id)	Get the representation of an object.
SimpleTypeInformation<O>	getDataTypeInformation()	Get the data type of this representation
DBIDs	getDBIDs()	Get the IDs the query is defined for.
java.lang.String	getLongName()	Get a long (human readable) name for the relation.
DBIDIter	iterDBIDs()	Get an iterator access to the DBIDs.
int	size()	Get the number of DBIDs.

Methods inherited from class java.lang.Object

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

Methods inherited from interface elki.database.relation.Relation

forEach

Constructor Detail

CountingRelation

private CountingRelation()

Method Detail

get

public O get(DBIDRef id)

Description copied from interface: Relation

Get the representation of an object.

Specified by:

get in interface Relation<O extends NumberVector>

Parameters:

id - Object ID

Returns:

object instance

getDataTypeInformation

public SimpleTypeInformation<O> getDataTypeInformation()

Description copied from interface: Relation

Get the data type of this representation

Specified by:

getDataTypeInformation in interface Relation<O extends NumberVector>

Returns:

Data type

getDBIDs

public DBIDs getDBIDs()

Description copied from interface: Relation

Get the IDs the query is defined for.

If possible, prefer Relation.iterDBIDs().

Specified by:

getDBIDs in interface Relation<O extends NumberVector>

Returns:

IDs this is defined for

iterDBIDs

public DBIDIter iterDBIDs()

Description copied from interface: Relation

Get an iterator access to the DBIDs.

To iterate over all IDs, use the following code fragment:

 
 for(DBIDIter iter = relation.iterDBIDs(); iter.valid(); iter.advance()) {
    relation.get(iter); // Get the current element
 }
 
 

Specified by:

iterDBIDs in interface Relation<O extends NumberVector>

Returns:

iterator for the DBIDs.

size

public int size()

Description copied from interface: Relation

Get the number of DBIDs.

Specified by:

size in interface Relation<O extends NumberVector>

Returns:

Size

getLongName

public java.lang.String getLongName()

Description copied from interface: Relation

Get a long (human readable) name for the relation.

Specified by:

getLongName in interface Relation<O extends NumberVector>

Returns:

Relation name