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

Class ExtendedArray<T>

java.lang.Object

de.lmu.ifi.dbs.elki.utilities.datastructures.arraylike.ExtendedArray<T>

Type Parameters:

T - Object type

All Implemented Interfaces:

ArrayAdapter<T,ExtendedArray<T>>

public class ExtendedArray<T>
extends java.lang.Object
implements ArrayAdapter<T,ExtendedArray<T>>

Class to extend an array with a single element virtually.

Since:

0.5.0

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
(package private) java.lang.Object	array The array
(package private) T	extra The extra element
(package private) ArrayAdapter<T,java.lang.Object>	getter The array adapter
(package private) int	size Our size

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ExtendedArray(java.lang.Object array, ArrayAdapter<T,java.lang.Object> getter, T extra) Constructor.

Method Summary

Modifier and Type	Method and Description
static <T,A> ExtendedArray<T>	extend(A array, ArrayAdapter<T,A> getter, T extra) Static wrapper that has a nicer generics signature.
T	get(ExtendedArray<T> array, int off) Get the off'th item from the array.
int	size(ExtendedArray<T> 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

array

final java.lang.Object array

The array

getter

final ArrayAdapter<T,java.lang.Object> getter

The array adapter

extra

final T extra

The extra element

size

final int size

Our size

Constructor Detail

ExtendedArray

protected ExtendedArray(java.lang.Object array,
                        ArrayAdapter<T,java.lang.Object> getter,
                        T extra)

Constructor.

Parameters:

array - Original array

getter - Adapter for array

extra - Extra element

Method Detail

size

public int size(ExtendedArray<T> array)

Description copied from interface: ArrayAdapter

Get the size of the array.

Specified by:

size in interface ArrayAdapter<T,ExtendedArray<T>>

Parameters:

array - Array-like thing

Returns:

Size

get

public T get(ExtendedArray<T> array,
             int off)
      throws java.lang.IndexOutOfBoundsException

Description copied from interface: ArrayAdapter

Get the off'th item from the array.

Specified by:

get in interface ArrayAdapter<T,ExtendedArray<T>>

Parameters:

array - Array to get from

off - Offset

Returns:

Item at offset off

Throws:

java.lang.IndexOutOfBoundsException - for an invalid index.

extend

public static <T,A> ExtendedArray<T> extend(A array,
                                            ArrayAdapter<T,A> getter,
                                            T extra)

Static wrapper that has a nicer generics signature.

Parameters:

array - Array to extend

getter - Getter for array

extra - Extra element

Returns:

Extended array