DoubleList (Commons Primitives 1.1-SNAPSHOT API)

All Superinterfaces:

DoubleCollection

All Known Implementing Classes:

ArrayDoubleList, ListDoubleList, RandomAccessDoubleList, RandomAccessDoubleList.RandomAccessDoubleSubList, UnmodifiableDoubleList
```
public interface DoubleList
extends DoubleCollection
```
An ordered collection of double values.

Since:

Commons Primitives 1.0

Version:

$Revision: 480460 $ $Date: 2006-11-29 03:14:21 -0500 (Wed, 29 Nov 2006) $

Author:

Rodney Waldhoff

See Also:
DoubleListList, ListDoubleList

Method Summary

Methods
Modifier and Type	Method and Description
`boolean`	`add(double element)` Appends the specified element to the end of me (optional operation).
`void`	`add(int index, double element)` Inserts the specified element at the specified position (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).
`boolean`	`equals(Object that)` Returns `true` iff that is an `DoubleList` that contains the same elements in the same order as me.
`double`	`get(int index)` Returns the value of the element at the specified position within me.
`int`	`hashCode()` Returns my hash code.
`int`	`indexOf(double element)` Returns the index of the first occurrence of the specified element within me, or `-1` if I do not contain the element.
`DoubleIterator`	`iterator()` Returns an `iterator` over all my elements, in the appropriate sequence.
`int`	`lastIndexOf(double element)` Returns the index of the last occurrence of the specified element within me, or -1 if I do not contain the element.
`DoubleListIterator`	`listIterator()` Returns a `bidirectional iterator` over all my elements, in the appropriate sequence.
`DoubleListIterator`	`listIterator(int index)` Returns a `bidirectional iterator` over all my elements, in the appropriate sequence, starting at the specified position.
`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).
`DoubleList`	`subList(int fromIndex, int toIndex)` Returns a view of the elements within me between the specified fromIndex, inclusive, and toIndex, exclusive.

Methods inherited from interface org.apache.commons.collections.primitives.DoubleCollection
addAll, clear, contains, containsAll, isEmpty, removeAll, removeElement, retainAll, size, toArray, toArray

- Method Detail
  - add
```
boolean add(double element)
```
    Appends the specified element to the end of me (optional operation). Returns true iff I changed as a result of this call.
    If a collection refuses to add the specified element for any reason other than that it already contains the element, it must throw an exception (rather than simply returning false). This preserves the invariant that a collection always contains the specified element after this call returns.
    
    Specified by:
    
    add in interface DoubleCollection
    
    Parameters:
    element - the value whose presence within me is to be ensured
    
    Returns:
    true iff I changed as a result of this call
    
    Throws:
    
    UnsupportedOperationException - when this operation is not supported
    
    IllegalArgumentException - may be thrown if some aspect of the specified element prevents it from being added to me
  - add
```
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.
    
    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
  - addAll
```
boolean addAll(int index,
             DoubleCollection collection)
```
    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.
    
    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
    
    Throws:
    
    UnsupportedOperationException - when this operation is not supported
    
    IndexOutOfBoundsException - if the specified index is out of range
  - equals
```
boolean equals(Object that)
```
    Returns true iff that is an DoubleList that contains the same elements in the same order as me. In other words, returns true iff that is a DoubleList that has the same size as me, and for which the elements returned by its iterator are equal (==) to the corresponding elements within me. (This contract ensures that this method works properly across different implementations of the DoubleList interface.)
    
    Overrides:
    
    equals in class Object
    
    Parameters:
    that - the object to compare to me
    
    Returns:
    true iff that is an DoubleList that contains the same elements in the same order as me
  - get
```
double get(int index)
```
    Returns the value of the element at the specified position within me.
    
    Parameters:
    index - the index of the element to return
    
    Returns:
    the value of the element at the specified position
    
    Throws:
    
    IndexOutOfBoundsException - if the specified index is out of range
  - hashCode
```
int hashCode()
```
    Returns my hash code.
    The hash code of an DoubleList is defined to be the result of the following calculation:
```
 int hash = 1;
 for(DoubleIterator iter = iterator(); iter.hasNext(); ) {
   double value = iter.next();
   hash = 31*hash + (int)(value ^ (value >>> 32));
 }
```
    This contract ensures that this method is consistent with equals and with the hashCode method of a List of Doubles.
    Overrides:
    
    hashCode in class Object
    
    Returns:
    my hash code
  - indexOf
```
int indexOf(double element)
```
    Returns the index of the first occurrence of the specified element within me, or -1 if I do not contain the element.
    
    Parameters:
    element - the element to search for
    
    Returns:
    the smallest index of an element matching the specified value, or -1 if no such matching element can be found
  - iterator
```
DoubleIterator iterator()
```
    Returns an iterator over all my elements, in the appropriate sequence.
    
    Specified by:
    
    iterator in interface DoubleCollection
    
    Returns:
    an iterator over all my elements.
  - lastIndexOf
```
int lastIndexOf(double element)
```
    Returns the index of the last occurrence of the specified element within me, or -1 if I do not contain the element.
    
    Parameters:
    element - the element to search for
    
    Returns:
    the largest index of an element matching the specified value, or -1 if no such matching element can be found
  - listIterator
```
DoubleListIterator listIterator()
```
    Returns a bidirectional iterator over all my elements, in the appropriate sequence.
  - listIterator
```
DoubleListIterator listIterator(int index)
```
    Returns a bidirectional iterator over all my elements, in the appropriate sequence, starting at the specified position. The specified index indicates the first element that would be returned by an initial call to the next method. An initial call to the previous method would return the element with the specified index minus one.
    
    Throws:
    
    IndexOutOfBoundsException - if the specified index is out of range
  - removeElementAt
```
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.
    
    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
```
double set(int index,
         double element)
```
    Replaces the element at the specified position in me with the specified element (optional operation).
    
    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
  - subList
```
DoubleList subList(int fromIndex,
                 int toIndex)
```
    Returns a view of the elements within me between the specified fromIndex, inclusive, and toIndex, exclusive. The returned DoubleList is backed by me, so that any changes in the returned list are reflected in me, and vice-versa. The returned list supports all of the optional operations that I support.
    Note that when fromIndex == toIndex, the returned list is initially empty, and when fromIndex == 0 && toIndex == size() the returned list is my "improper" sublist, containing all my elements.
    The semantics of the returned list become undefined if I am structurally modified in any way other than via the returned list.
    
    Parameters:
    fromIndex - the smallest index (inclusive) in me that appears in the returned list
    toIndex - the largest index (exclusive) in me that appears in the returned list
    
    Returns:
    a view of this list from fromIndex (inclusive) to toIndex (exclusive)
    
    Throws:
    
    IndexOutOfBoundsException - if either specified index is out of range

Interface DoubleList

Method Summary

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

Method Detail

add

add

addAll

equals

get

hashCode

indexOf

iterator

lastIndexOf

listIterator

listIterator

removeElementAt

set

subList