org.apache.commons.collections.primitives
Class ArrayDoubleList

java.lang.Object
  extended by org.apache.commons.collections.primitives.AbstractDoubleCollection
      extended by org.apache.commons.collections.primitives.RandomAccessDoubleList
          extended by org.apache.commons.collections.primitives.ArrayDoubleList
All Implemented Interfaces:
Serializable, DoubleCollection, DoubleList

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: 480460 $ $Date: 2006-11-29 09:14:21 +0100 (Wed, 29 Nov 2006) $
Author:
Rodney Waldhoff
See Also:
Serialized Form

Nested Class Summary
 
Nested classes/interfaces 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(double[] array)
          Constructs a list by copying the specified array.
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).
 boolean addAll(DoubleCollection collection)
          Adds all of the elements in the specified collection to me (optional operation).
 boolean addAll(int index, DoubleCollection collection)
          Inserts all of the elements in the specified collection into me, at the specified position (optional operation).
 void clear()
          Removes all my elements (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, equals, getModCount, hashCode, incrModCount, indexOf, iterator, lastIndexOf, listIterator, listIterator, subList, toString
 
Methods inherited from class org.apache.commons.collections.primitives.AbstractDoubleCollection
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, equals, hashCode, indexOf, iterator, lastIndexOf, listIterator, listIterator, subList
 
Methods inherited from interface org.apache.commons.collections.primitives.DoubleCollection
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:
addAll(org.apache.commons.collections.primitives.DoubleCollection)

ArrayDoubleList

public ArrayDoubleList(double[] array)
Constructs a list by copying the specified array.

Parameters:
array - the array to initialize the collection with
Throws:
NullPointerException - if the array is null
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
Parameters:
index - the index of the element to return
Returns:
the value of the element at the specified position

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
Returns:
the number of elements I contain

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

clear

public void clear()
Description copied from interface: DoubleCollection
Removes all my elements (optional operation). I will be empty after this method successfully returns.

Specified by:
clear in interface DoubleCollection
Overrides:
clear in class AbstractDoubleCollection

addAll

public boolean addAll(DoubleCollection collection)
Description copied from interface: DoubleCollection
Adds all of the elements in the specified collection to me (optional operation).

Specified by:
addAll in interface DoubleCollection
Overrides:
addAll in class AbstractDoubleCollection
Parameters:
collection - the collection of elements whose presence within me is to be ensured
Returns:
true iff I changed as a result of this call

addAll

public boolean addAll(int index,
                      DoubleCollection collection)
Description copied from interface: DoubleList
Inserts all of the elements in the specified collection into me, 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. The new elements will appear in the order that they are returned by the given collection's iterator.

Specified by:
addAll in interface DoubleList
Overrides:
addAll in class RandomAccessDoubleList
Parameters:
index - the index at which to insert the first element from the specified collection
collection - the DoubleCollection of elements to add
Returns:
true iff I changed as a result of this call

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.



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