org.eclipse.ocl.examples.eventmanager.util
Class CompositeCollection<E>

java.lang.Object
  org.eclipse.ocl.examples.eventmanager.CompositeIterable<E>
      org.eclipse.ocl.examples.eventmanager.util.CompositeCollection<E>

All Implemented Interfaces:

java.lang.Iterable<E>, java.util.Collection<E>

Direct Known Subclasses:

CompositeBag, CompositeSet

public abstract class CompositeCollection<E>
extends CompositeIterable<E>
implements java.util.Collection<E>

Forwards contains(Object) to the individual sets. Iterates by pulling the iterators of the individual sets. Just creating the composite set happens in O(1) by assigning the passed array of sets. The contains-check performs in O(n) is n is the number of sets held by this composite set and assuming that the individual sets can perform their contains-check in O(1). The composite set is unmodifiable. All modifying operations throw an exception.

Author:

Axel Uhl

Constructor Summary

CompositeCollection(java.util.Collection<? extends E>... collections)

CompositeCollection(java.util.Collection<java.lang.Iterable<? extends E>> collections)

Method Summary

boolean	add(E e)
boolean	addAll(java.util.Collection<? extends E> c)
void	clear()
boolean	contains(java.lang.Object o)
boolean	containsAll(java.util.Collection<?> c)
boolean	isEmpty()
java.util.Iterator<E>	iterator()
boolean	remove(java.lang.Object o)
boolean	removeAll(java.util.Collection<?> c)
boolean	retainAll(java.util.Collection<?> c)
int	size()
java.lang.Object[]	toArray()
<T> T[]	toArray(T[] a)

Methods inherited from class org.eclipse.ocl.examples.eventmanager.CompositeIterable

getIterables

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

Constructor Detail

CompositeCollection

public CompositeCollection(java.util.Collection<? extends E>... collections)

CompositeCollection

public CompositeCollection(java.util.Collection<java.lang.Iterable<? extends E>> collections)

Method Detail

contains

public boolean contains(java.lang.Object o)

Specified by:

contains in interface java.util.Collection<E>

removeAll

public boolean removeAll(java.util.Collection<?> c)

Specified by:

removeAll in interface java.util.Collection<E>

add

public boolean add(E e)

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>

addAll

public boolean addAll(java.util.Collection<? extends E> c)

Specified by:

addAll 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>

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>

Overrides:

iterator in class CompositeIterable<E>

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>

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>

containsAll

public boolean containsAll(java.util.Collection<?> c)

Specified by:

containsAll in interface java.util.Collection<E>