de.lmu.ifi.dbs.elki.utilities.datastructures.arraylike

Class SubsetArrayAdapter<T,A>

java.lang.Object

de.lmu.ifi.dbs.elki.utilities.datastructures.arraylike.SubsetArrayAdapter<T,A>

Type Parameters:

T - Entry type

A - Array type

All Implemented Interfaces:

ArrayAdapter<T,A>

public class SubsetArrayAdapter<T,A>
extends Object
implements ArrayAdapter<T,A>

Subset array adapter (allows reordering and projection).

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
(package private) int[]	offs Offsets to return.
(package private) ArrayAdapter<T,? super A>	wrapped Wrapped adapter.

Constructor Summary

Constructors

Constructor and Description
SubsetArrayAdapter(ArrayAdapter<T,? super A> wrapped, int[] offs) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
T	get(A array, int off) Get the off'th item from the array.
int	size(A array) Get the size of the array.

Methods inherited from class java.lang.Object

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

Field Detail

wrapped

ArrayAdapter<T,? super A> wrapped

Wrapped adapter.

offs

int[] offs

Offsets to return.

Constructor Detail

SubsetArrayAdapter

public SubsetArrayAdapter(ArrayAdapter<T,? super A> wrapped,
                  int[] offs)

Constructor.

Parameters:

wrapped - Wrapped adapter

offs - Offsets

Method Detail

size

public int size(A array)

Description copied from interface: ArrayAdapter

Get the size of the array.

Specified by:

size in interface ArrayAdapter<T,A>

Parameters:

array - Array-like thing

Returns:

Size

get

public T get(A array,
    int off)
      throws IndexOutOfBoundsException

Description copied from interface: ArrayAdapter

Get the off'th item from the array.

Specified by:

get in interface ArrayAdapter<T,A>

Parameters:

array - Array to get from

off - Offset

Returns:

Item at offset off

Throws:

IndexOutOfBoundsException - for an invalid index.