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

Class SubsetNumberArrayAdapter<T extends java.lang.Number,A>

java.lang.Object

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

Type Parameters:

T - Entry type

A - Array type

All Implemented Interfaces:

ArrayAdapter<T,A>, NumberArrayAdapter<T,A>

public class SubsetNumberArrayAdapter<T extends java.lang.Number,A>
extends java.lang.Object
implements NumberArrayAdapter<T,A>

Subset array adapter (allows reordering and projection)

Since:

0.5.0

Author:

Erich Schubert

Field Summary

Fields

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

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
T	get(A array, int off) Get the off'th item from the array.
byte	getByte(A array, int off) Get the off'th item from the array as byte.
double	getDouble(A array, int off) Get the off'th item from the array as double.
float	getFloat(A array, int off) Get the off'th item from the array as float.
int	getInteger(A array, int off) Get the off'th item from the array as integer.
long	getLong(A array, int off) Get the off'th item from the array as long.
short	getShort(A array, int off) Get the off'th item from the array as short.
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

NumberArrayAdapter<T extends java.lang.Number,? super A> wrapped

Wrapped adapter

offs

int[] offs

Offsets to return

Constructor Detail

SubsetNumberArrayAdapter

public SubsetNumberArrayAdapter(NumberArrayAdapter<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 extends java.lang.Number,A>

Specified by:

size in interface NumberArrayAdapter<T extends java.lang.Number,A>

Parameters:

array - Array-like thing

Returns:

Size

get

public T get(A 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 extends java.lang.Number,A>

Specified by:

get in interface NumberArrayAdapter<T extends java.lang.Number,A>

Parameters:

array - Array to get from

off - Offset

Returns:

Item at offset off

Throws:

java.lang.IndexOutOfBoundsException - for an invalid index.

getDouble

public double getDouble(A array,
                        int off)
                 throws java.lang.IndexOutOfBoundsException

Description copied from interface: NumberArrayAdapter

Get the off'th item from the array as double.

Specified by:

getDouble in interface NumberArrayAdapter<T extends java.lang.Number,A>

Parameters:

array - Array to get from

off - Offset

Returns:

Item at offset off

Throws:

java.lang.IndexOutOfBoundsException - for an invalid index.

getFloat

public float getFloat(A array,
                      int off)
               throws java.lang.IndexOutOfBoundsException

Description copied from interface: NumberArrayAdapter

Get the off'th item from the array as float.

Specified by:

getFloat in interface NumberArrayAdapter<T extends java.lang.Number,A>

Parameters:

array - Array to get from

off - Offset

Returns:

Item at offset off

Throws:

java.lang.IndexOutOfBoundsException - for an invalid index.

getInteger

public int getInteger(A array,
                      int off)
               throws java.lang.IndexOutOfBoundsException

Description copied from interface: NumberArrayAdapter

Get the off'th item from the array as integer.

Specified by:

getInteger in interface NumberArrayAdapter<T extends java.lang.Number,A>

Parameters:

array - Array to get from

off - Offset

Returns:

Item at offset off

Throws:

java.lang.IndexOutOfBoundsException - for an invalid index.

getShort

public short getShort(A array,
                      int off)
               throws java.lang.IndexOutOfBoundsException

Description copied from interface: NumberArrayAdapter

Get the off'th item from the array as short.

Specified by:

getShort in interface NumberArrayAdapter<T extends java.lang.Number,A>

Parameters:

array - Array to get from

off - Offset

Returns:

Item at offset off

Throws:

java.lang.IndexOutOfBoundsException - for an invalid index.

getLong

public long getLong(A array,
                    int off)
             throws java.lang.IndexOutOfBoundsException

Description copied from interface: NumberArrayAdapter

Get the off'th item from the array as long.

Specified by:

getLong in interface NumberArrayAdapter<T extends java.lang.Number,A>

Parameters:

array - Array to get from

off - Offset

Returns:

Item at offset off

Throws:

java.lang.IndexOutOfBoundsException - for an invalid index.

getByte

public byte getByte(A array,
                    int off)
             throws java.lang.IndexOutOfBoundsException

Description copied from interface: NumberArrayAdapter

Get the off'th item from the array as byte.

Specified by:

getByte in interface NumberArrayAdapter<T extends java.lang.Number,A>

Parameters:

array - Array to get from

off - Offset

Returns:

Item at offset off

Throws:

java.lang.IndexOutOfBoundsException - for an invalid index.