org.apache.commons.collections.primitives
Class ArrayDoubleList

java.lang.Object
  org.apache.commons.collections.primitives.AbstractDoubleCollection
      org.apache.commons.collections.primitives.RandomAccessDoubleList
          org.apache.commons.collections.primitives.ArrayDoubleList

All Implemented Interfaces:

DoubleCollection, DoubleList, Serializable

public class ArrayDoubleList

extends RandomAccessDoubleList

implements DoubleList, Serializable

An DoubleList backed by an array of doubles. This implementation supports all optional methods.

Since:

Commons Primitives 1.0

Version:

$Revision: 1.3 $ $Date: 2003/10/16 20:49:36 $

Author:

Rodney Waldhoff

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class org.apache.commons.collections.primitives.RandomAccessDoubleList

RandomAccessDoubleList.RandomAccessDoubleListIterator, RandomAccessDoubleList.RandomAccessDoubleSubList

Constructor Summary

ArrayDoubleList()
Construct an empty list with the default initial capacity.

ArrayDoubleList(DoubleCollection that)
Constructs a list containing the elements of the given collection, in the order they are returned by that collection's iterator.

ArrayDoubleList(int initialCapacity)
Construct an empty list with the given initial capacity.

Method Summary

void	add(int index, double element) Inserts the specified element at the specified position (optional operation).
void	ensureCapacity(int mincap) Increases my capacity, if necessary, to ensure that I can hold at least the number of elements specified by the minimum capacity argument without growing.
double	get(int index) Returns the value of the element at the specified position within me.
double	removeElementAt(int index) Removes the element at the specified position in (optional operation).
double	set(int index, double element) Replaces the element at the specified position in me with the specified element (optional operation).
int	size() Returns the number of elements I contain.
void	trimToSize() Reduce my capacity, if necessary, to match my current size.

Methods inherited from class org.apache.commons.collections.primitives.RandomAccessDoubleList

add, addAll, equals, getModCount, hashCode, incrModCount, indexOf, iterator, lastIndexOf, listIterator, listIterator, subList, toString

Methods inherited from class org.apache.commons.collections.primitives.AbstractDoubleCollection

addAll, clear, contains, containsAll, isEmpty, removeAll, removeElement, retainAll, toArray, toArray

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.commons.collections.primitives.DoubleList

add, addAll, equals, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, subList

Methods inherited from interface org.apache.commons.collections.primitives.DoubleCollection

addAll, clear, contains, containsAll, isEmpty, removeAll, removeElement, retainAll, toArray, toArray

Constructor Detail

ArrayDoubleList

public ArrayDoubleList()

Construct an empty list with the default initial capacity.

ArrayDoubleList

public ArrayDoubleList(int initialCapacity)

Construct an empty list with the given initial capacity.

Throws:

IllegalArgumentException - when initialCapacity is negative

ArrayDoubleList

public ArrayDoubleList(DoubleCollection that)

Constructs a list containing the elements of the given collection, in the order they are returned by that collection's iterator.

Parameters:

that - the non-null collection of doubles to add

Throws:

NullPointerException - if that is null

See Also:

AbstractDoubleCollection.addAll(org.apache.commons.collections.primitives.DoubleCollection)

Method Detail

get

public double get(int index)

Description copied from interface: DoubleList

Returns the value of the element at the specified position within me.

Specified by:

get in interface DoubleList

Specified by:

get in class RandomAccessDoubleList

size

public int size()

Description copied from interface: DoubleCollection

Returns the number of elements I contain.

Specified by:

size in interface DoubleCollection

Specified by:

size in class RandomAccessDoubleList

removeElementAt

public double removeElementAt(int index)

Removes the element at the specified position in (optional operation). Any subsequent elements are shifted to the left, subtracting one from their indices. Returns the element that was removed.

Specified by:

removeElementAt in interface DoubleList

Overrides:

removeElementAt in class RandomAccessDoubleList

Parameters:

index - the index of the element to remove

Returns:

the value of the element that was removed

Throws:

UnsupportedOperationException - when this operation is not supported

IndexOutOfBoundsException - if the specified index is out of range

set

public double set(int index,
                  double element)

Replaces the element at the specified position in me with the specified element (optional operation).

Specified by:

set in interface DoubleList

Overrides:

set in class RandomAccessDoubleList

Parameters:

index - the index of the element to change

element - the value to be stored at the specified position

Returns:

the value previously stored at the specified position

Throws:

UnsupportedOperationException - when this operation is not supported

IndexOutOfBoundsException - if the specified index is out of range

add

public void add(int index,
                double element)

Inserts the specified element at the specified position (optional operation). Shifts the element currently at that position (if any) and any subsequent elements to the right, increasing their indices.

Specified by:

add in interface DoubleList

Overrides:

add in class RandomAccessDoubleList

Parameters:

index - the index at which to insert the element

element - the value to insert

Throws:

UnsupportedOperationException - when this operation is not supported

IllegalArgumentException - if some aspect of the specified element prevents it from being added to me

IndexOutOfBoundsException - if the specified index is out of range

ensureCapacity

public void ensureCapacity(int mincap)

Increases my capacity, if necessary, to ensure that I can hold at least the number of elements specified by the minimum capacity argument without growing.

trimToSize

public void trimToSize()

Reduce my capacity, if necessary, to match my current size.