org.eclipse.ocl.examples.eventmanager.util
Class SingleSetAsBag<E>
java.lang.Object
org.eclipse.ocl.examples.eventmanager.util.SingleSetAsBag<E>
- All Implemented Interfaces:
- java.lang.Iterable<E>, java.util.Collection<E>, Bag<E>
public class SingleSetAsBag<E>
- extends java.lang.Object
- implements Bag<E>
Wraps a single Set
as a Bag
. If the set's Collection.contains(Object)
operation is fast then so will be this bag's contains(Object)
operation.
According to the specification of Bag
, all modifying operations throw an
UnsupportedOperationException
.
The underlying Set
, however, can be obtained using getWrappedSet()
and
modified. As the iterator()
on this bag is obtained from the underlying set,
modifications to the set while iterating over this bag will cause a
ConcurrentModificationException
.
- Author:
- Axel Uhl
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface java.util.Collection |
equals, hashCode |
SingleSetAsBag
public SingleSetAsBag(java.util.Set<E> set)
- Parameters:
set
- must not be null
, or else, a NullPointerException
will be thrown.
getWrappedSet
public java.util.Set<E> getWrappedSet()
size
public int size()
- Specified by:
size
in interface java.util.Collection<E>
isEmpty
public boolean isEmpty()
- Specified by:
isEmpty
in interface java.util.Collection<E>
contains
public boolean contains(java.lang.Object o)
- Specified by:
contains
in interface java.util.Collection<E>
iterator
public java.util.Iterator<E> iterator()
- Specified by:
iterator
in interface java.lang.Iterable<E>
- Specified by:
iterator
in interface java.util.Collection<E>
toArray
public java.lang.Object[] toArray()
- Specified by:
toArray
in interface java.util.Collection<E>
toArray
public <T> T[] toArray(T[] a)
- Specified by:
toArray
in interface java.util.Collection<E>
add
public boolean add(E o)
- Specified by:
add
in interface java.util.Collection<E>
remove
public boolean remove(java.lang.Object o)
- Specified by:
remove
in interface java.util.Collection<E>
containsAll
public boolean containsAll(java.util.Collection<?> c)
- Specified by:
containsAll
in interface java.util.Collection<E>
addAll
public boolean addAll(java.util.Collection<? extends E> c)
- Specified by:
addAll
in interface java.util.Collection<E>
removeAll
public boolean removeAll(java.util.Collection<?> c)
- Specified by:
removeAll
in interface java.util.Collection<E>
retainAll
public boolean retainAll(java.util.Collection<?> c)
- Specified by:
retainAll
in interface java.util.Collection<E>
clear
public void clear()
- Specified by:
clear
in interface java.util.Collection<E>
count
public int count(java.lang.Object o)
- Description copied from interface:
Bag
- Queries how many times the specified object occurs in me.
If I do not contain the object, then the count is zero.
- Specified by:
count
in interface Bag<E>
- Parameters:
o
- an object
- Returns:
- the number of times that it occurs in me