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java.lang.Objectorg.apache.commons.collections.primitives.AbstractCharCollection
Abstract base class for CharCollections.
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.
| Constructor Summary | |
protected |
AbstractCharCollection()
|
| Method Summary | |
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 |
protected AbstractCharCollection()
| Method Detail |
public abstract CharIterator iterator()
CharCollectioniterator over all my elements.
This base interface places no constraints on the order
in which the elements are returned by the returned iterator.
iterator in interface CharCollectioniterator over all my elements.public abstract int size()
CharCollection
size in interface CharCollectionpublic boolean add(char element)
add in interface CharCollectionelement - the value whose presence within me is to be ensured
true iff I changed as a result of this callpublic boolean addAll(CharCollection c)
CharCollectionAdds all of the elements in the
specified collection to me (optional operation).
addAll in interface CharCollectionc - the collection of elements whose presence within me is to
be ensured
true iff I changed as a result of this callpublic void clear()
CharCollectionempty after this
method successfully returns.
clear in interface CharCollectionpublic boolean contains(char element)
CharCollectiontrue iff I contain
the specified element.
contains in interface CharCollectionelement - the value whose presence within me is to be tested
true iff I contain the specified elementpublic boolean containsAll(CharCollection c)
CharCollectiontrue iff I contain
all of the elements in the given collection.
containsAll in interface CharCollectionc - the collection of elements whose presence within me is to
be tested
true iff I contain the all the specified elementspublic boolean isEmpty()
CharCollectiontrue iff I contain no elements.
isEmpty in interface CharCollectiontrue iff I contain no elements.public boolean removeElement(char element)
CharCollection
removeElement in interface CharCollectionelement - the element to remove, if present
true iff I contained the specified element,
in other words, iff I changed as a result of this callpublic boolean removeAll(CharCollection c)
CharCollection
removeAll in interface CharCollectionc - the collection of elements to remove
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 callpublic boolean retainAll(CharCollection c)
CharCollection
retainAll in interface CharCollectionc - the collection of elements to retain
true iff I changed as a result
of this callpublic char[] toArray()
CharCollectionsize.
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.
toArray in interface CharCollectionpublic char[] toArray(char[] a)
CharCollectioniterator,
the returned array will contain elements in the
same order.
toArray in interface CharCollectiona - an array that may be used to contain the elements
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