AbstractCharCollection (Commons Primitives 1.1-SNAPSHOT API)

java.lang.Object
- org.apache.commons.collections.primitives.AbstractCharCollection

All Implemented Interfaces:

CharCollection

Direct Known Subclasses:

RandomAccessCharList
```
public abstract class AbstractCharCollection
extends Object
implements CharCollection
```
Abstract base class for CharCollections.
Read-only subclasses must override iterator() and size(). Mutable subclasses should also override add(char) and CharIterator.remove. All other methods have at least some base implementation derived from these. Subclasses may choose to override these methods to provide a more efficient implementation.

Since:

Commons Primitives 1.0

Version:

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

Author:

Rodney Waldhoff

Constructor Summary

Constructors
Modifier Constructor and Description

protected AbstractCharCollection()

Constructors
Modifier	Constructor and Description
`protected`	`AbstractCharCollection()`

Method Summary

Methods
Modifier and Type	Method and Description
`boolean`	`add(char element)` Unsupported in this base implementation.
`boolean`	`addAll(CharCollection c)` `Adds` all of the elements in the specified collection to me (optional operation).
`void`	`clear()` Removes all my elements (optional operation).
`boolean`	`contains(char element)` Returns `true` iff I contain the specified element.
`boolean`	`containsAll(CharCollection c)` Returns `true` iff I `contain` all of the elements in the given collection.
`boolean`	`isEmpty()` Returns `true` iff I contain no elements.
`abstract CharIterator`	`iterator()` Returns an `iterator` over all my elements.
`boolean`	`removeAll(CharCollection c)` Removes all of my elements that are contained in the specified collection (optional operation).
`boolean`	`removeElement(char element)` Removes a single occurrence of the specified element (optional operation).
`boolean`	`retainAll(CharCollection c)` Removes all of my elements that are not contained in the specified collection (optional operation).
`abstract int`	`size()` Returns the number of elements I contain.
`char[]`	`toArray()` Returns an array containing all of my elements.
`char[]`	`toArray(char[] a)` Returns an array containing all of my elements, using the given array if it is large enough.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AbstractCharCollection
```
protected AbstractCharCollection()
```
- Method Detail
  - iterator
```
public abstract CharIterator iterator()
```
    Description copied from interface: CharCollection
    
    Returns an iterator over all my elements. This base interface places no constraints on the order in which the elements are returned by the returned iterator.
    
    Specified by:
    
    iterator in interface CharCollection
    
    Returns:
    an iterator over all my elements.
  - size
```
public abstract int size()
```
    Description copied from interface: CharCollection
    
    Returns the number of elements I contain.
    
    Specified by:
    
    size in interface CharCollection
    
    Returns:
    the number of elements I contain
  - add
```
public boolean add(char element)
```
    Unsupported in this base implementation.
    
    Specified by:
    
    add in interface CharCollection
    
    Parameters:
    element - the value whose presence within me is to be ensured
    
    Returns:
    true iff I changed as a result of this call
  - addAll
```
public boolean addAll(CharCollection c)
```
    Description copied from interface: CharCollection
    
    Adds all of the elements in the specified collection to me (optional operation).
    
    Specified by:
    
    addAll in interface CharCollection
    
    Parameters:
    c - the collection of elements whose presence within me is to be ensured
    
    Returns:
    true iff I changed as a result of this call
  - clear
```
public void clear()
```
    Description copied from interface: CharCollection
    
    Removes all my elements (optional operation). I will be empty after this method successfully returns.
    
    Specified by:
    
    clear in interface CharCollection
  - contains
```
public boolean contains(char element)
```
    Description copied from interface: CharCollection
    
    Returns true iff I contain the specified element.
    
    Specified by:
    
    contains in interface CharCollection
    
    Parameters:
    element - the value whose presence within me is to be tested
    
    Returns:
    true iff I contain the specified element
  - containsAll
```
public boolean containsAll(CharCollection c)
```
    Description copied from interface: CharCollection
    
    Returns true iff I contain all of the elements in the given collection.
    
    Specified by:
    
    containsAll in interface CharCollection
    
    Parameters:
    c - the collection of elements whose presence within me is to be tested
    
    Returns:
    true iff I contain the all the specified elements
  - isEmpty
```
public boolean isEmpty()
```
    Description copied from interface: CharCollection
    
    Returns true iff I contain no elements.
    
    Specified by:
    
    isEmpty in interface CharCollection
    
    Returns:
    true iff I contain no elements.
  - removeElement
```
public boolean removeElement(char element)
```
    Description copied from interface: CharCollection
    
    Removes a single occurrence of the specified element (optional operation).
    
    Specified by:
    
    removeElement in interface CharCollection
    
    Parameters:
    element - the element to remove, if present
    
    Returns:
    true iff I contained the specified element, in other words, iff I changed as a result of this call
  - removeAll
```
public boolean removeAll(CharCollection c)
```
    Description copied from interface: CharCollection
    
    Removes all of my elements that are contained in the specified collection (optional operation). The behavior of this method is unspecified if the given collection is modified while this method is executing. Note that this includes the case in which the given collection is this collection, and it is not empty.
    
    Specified by:
    
    removeAll in interface CharCollection
    
    Parameters:
    c - the collection of elements to remove
    
    Returns:
    true iff I contained the at least one of the specified elements, in other words, returns true iff I changed as a result of this call
  - retainAll
```
public boolean retainAll(CharCollection c)
```
    Description copied from interface: CharCollection
    
    Removes all of my elements that are not contained in the specified collection (optional operation). (In other words, retains only my elements that are contained in the specified collection.) The behavior of this method is unspecified if the given collection is modified while this method is executing.
    
    Specified by:
    
    retainAll in interface CharCollection
    
    Parameters:
    c - the collection of elements to retain
    
    Returns:
    true iff I changed as a result of this call
  - toArray
```
public char[] toArray()
```
    Description copied from interface: CharCollection
    
    Returns an array containing all of my elements. The length of the returned array will be equal to my size.
    The returned array will be independent of me, so that callers may modify that returned array without modifying this collection.
    When I guarantee the order in which elements are returned by an iterator, the returned array will contain elements in the same order.
    
    Specified by:
    
    toArray in interface CharCollection
    
    Returns:
    an array containing all my elements
  - toArray
```
public char[] toArray(char[] a)
```
    Description copied from interface: CharCollection
    
    Returns an array containing all of my elements, using the given array if it is large enough. When the length of the given array is larger than the number of elements I contain, values outside of my range will be unchanged.
    The returned array will be independent of me, so that callers may modify that returned array without modifying this collection.
    When I guarantee the order in which elements are returned by an iterator, the returned array will contain elements in the same order.
    
    Specified by:
    
    toArray in interface CharCollection
    
    Parameters:
    a - an array that may be used to contain the elements
    
    Returns:
    an array containing all my elements

Class AbstractCharCollection

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

AbstractCharCollection

Method Detail

iterator

size

add

addAll

clear

contains

containsAll

isEmpty

removeElement

removeAll

retainAll

toArray

toArray