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java.lang.Objectorg.apache.commons.collections.primitives.adapters.CollectionBooleanCollection
public final class CollectionBooleanCollection
Adapts a Boolean
-valued Collection
to the BooleanCollection
interface.
Collection
implementation in the "obvious" way.
Constructor Summary | |
---|---|
CollectionBooleanCollection(java.util.Collection collection)
Creates an BooleanCollection wrapping the specified Collection . |
Method Summary | |
---|---|
boolean |
add(boolean element)
Ensures that I contain the specified element (optional operation). |
boolean |
addAll(BooleanCollection c)
Adds all of the elements in the specified collection to
me (optional operation). |
void |
clear()
Removes all my elements (optional operation). |
boolean |
contains(boolean element)
Returns true iff I contain
the specified element. |
boolean |
containsAll(BooleanCollection c)
Returns true iff I contain
all of the elements in the given collection. |
protected java.util.Collection |
getCollection()
|
boolean |
isEmpty()
Returns true iff I contain no elements. |
BooleanIterator |
iterator()
wraps the Iterator returned by my underlying Collection , if any. |
boolean |
removeAll(BooleanCollection c)
Removes all of my elements that are contained in the specified collection (optional operation). |
boolean |
removeElement(boolean element)
Removes a single occurrence of the specified element (optional operation). |
boolean |
retainAll(BooleanCollection c)
Removes all of my elements that are not contained in the specified collection (optional operation). |
int |
size()
Returns the number of elements I contain. |
boolean[] |
toArray()
Returns an array containing all of my elements. |
boolean[] |
toArray(boolean[] dest)
Returns an array containing all of my elements, using the given array if it is large enough. |
java.lang.String |
toString()
|
static BooleanCollection |
wrap(java.util.Collection collection)
Create an BooleanCollection wrapping the specified Collection . |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
---|
public CollectionBooleanCollection(java.util.Collection collection)
BooleanCollection
wrapping the specified Collection
.
wrap(java.util.Collection)
Method Detail |
---|
public static BooleanCollection wrap(java.util.Collection collection)
BooleanCollection
wrapping the specified Collection
. When the given collection is null
,
returns null
.
collection
- the (possibly null
) Collection
to wrap
BooleanCollection
wrapping the given collection, or null
when collection is null
.protected java.util.Collection getCollection()
public boolean add(boolean element)
BooleanCollection
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.
add
in interface BooleanCollection
element
- the value whose presence within me is to be ensured
true
iff I changed as a result of this callpublic boolean addAll(BooleanCollection c)
BooleanCollection
Adds
all of the elements in the specified collection to
me (optional operation).
addAll
in interface BooleanCollection
c
- the collection of elements whose presence within me is to
be ensured
true
iff I changed as a result of this callpublic void clear()
BooleanCollection
empty
after this method successfully returns.
clear
in interface BooleanCollection
public boolean contains(boolean element)
BooleanCollection
true
iff I contain
the specified element.
contains
in interface BooleanCollection
element
- the value whose presence within me is to be tested
true
iff I contain the specified elementpublic boolean containsAll(BooleanCollection c)
BooleanCollection
true
iff I contain
all of the elements in the given collection.
containsAll
in interface BooleanCollection
c
- the collection of elements whose presence within me is to
be tested
true
iff I contain the all the specified elementspublic java.lang.String toString()
toString
in class java.lang.Object
public boolean isEmpty()
BooleanCollection
true
iff I contain no elements.
isEmpty
in interface BooleanCollection
true
iff I contain no elements.public BooleanIterator iterator()
wraps
the Iterator
returned by my underlying Collection
, if any.
iterator
in interface BooleanCollection
iterator
over all my elements.public boolean removeElement(boolean element)
BooleanCollection
removeElement
in interface BooleanCollection
element
- 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(BooleanCollection c)
BooleanCollection
removeAll
in interface BooleanCollection
c
- 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(BooleanCollection c)
BooleanCollection
retainAll
in interface BooleanCollection
c
- the collection of elements to retain
true
iff I changed as a result of this callpublic int size()
BooleanCollection
size
in interface BooleanCollection
public boolean[] toArray()
BooleanCollection
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.
toArray
in interface BooleanCollection
public boolean[] toArray(boolean[] dest)
BooleanCollection
iterator
, the returned array will contain elements in the
same order.
toArray
in interface BooleanCollection
dest
- an array that may be used to contain the elements
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