de.lmu.ifi.dbs.elki.database.ids.integer

Class IntArrayStaticDBIDs

java.lang.Object

de.lmu.ifi.dbs.elki.database.ids.integer.IntArrayStaticDBIDs

All Implemented Interfaces:

ArrayDBIDs, ArrayStaticDBIDs, DBIDs, IntegerArrayStaticDBIDs, IntegerDBIDs, StaticDBIDs

public class IntArrayStaticDBIDs
extends Object
implements IntegerArrayStaticDBIDs

Static (no modifications allowed) set of Database Object IDs.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	IntArrayStaticDBIDs.DBIDItr DBID iterator in ELKI/C style.

Field Summary

Fields

Modifier and Type	Field and Description
protected int[]	ids The actual storage.

Constructor Summary

Constructors

Constructor and Description
IntArrayStaticDBIDs(int... ids) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	assign(int i, DBIDVar var) Assign a DBID variable the value of position index.
int	binarySearch(DBIDRef key) Search for the position of the given key, assuming that the data set is sorted.
boolean	contains(DBIDRef o) Test whether an ID is contained.
DBID	get(int i) Get the i'th entry (starting at 0) If possible, use an DBIDArrayIter via ArrayDBIDs.iter() instead!
boolean	isEmpty() Test for an empty DBID collection.
IntegerDBIDArrayIter	iter() Iterable
int	size() Size of the DBID "collection".

Methods inherited from class java.lang.Object

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

Field Detail

ids

protected int[] ids

The actual storage.

Constructor Detail

IntArrayStaticDBIDs

public IntArrayStaticDBIDs(int... ids)

Constructor.

Parameters:

ids - Array of ids.

Method Detail

iter

public IntegerDBIDArrayIter iter()

Description copied from interface: ArrayDBIDs

Iterable

Specified by:

iter in interface ArrayDBIDs

Specified by:

iter in interface DBIDs

Specified by:

iter in interface IntegerArrayStaticDBIDs

Specified by:

iter in interface IntegerDBIDs

Returns:

Iterator

size

public int size()

Description copied from interface: ArrayDBIDs

Size of the DBID "collection".

Specified by:

size in interface ArrayDBIDs

Specified by:

size in interface DBIDs

Returns:

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.

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

get

public DBID get(int i)

Description copied from interface: ArrayDBIDs

Get the i'th entry (starting at 0) If possible, use an DBIDArrayIter via ArrayDBIDs.iter() instead!

Specified by:

get in interface ArrayDBIDs

Parameters:

i - Index

Returns:

DBID of i'th entry.

assign

public void assign(int i,
          DBIDVar var)

Description copied from interface: ArrayDBIDs

Assign a DBID variable the value of position index.

Specified by:

assign in interface ArrayDBIDs

Parameters:

i - Position

var - Variable to assign the value to.

binarySearch

public int binarySearch(DBIDRef key)

Description copied from interface: ArrayDBIDs

Search for the position of the given key, assuming that the data set is sorted. For keys not found, -(1+insertion position) is returned, as for Java Collections.binarySearch(java.util.List<? extends java.lang.Comparable<? super T>>, T)

Specified by:

binarySearch in interface ArrayDBIDs

Parameters:

key - Key to search for

Returns:

Offset of key