net.sf.bddbddb.order
Class StackQueue

java.lang.Object
  java.util.AbstractCollection<E>
      java.util.AbstractList<E>
          java.util.Vector<E>
              java.util.Stack
                  net.sf.bddbddb.order.StackQueue

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.lang.Iterable, java.util.Collection, java.util.List, java.util.RandomAccess, Queue

public class StackQueue
extends java.util.Stack
implements Queue

See Also:

Serialized Form

Field Summary

Fields inherited from class java.util.Vector

capacityIncrement, elementCount, elementData

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

StackQueue()

Method Summary

java.lang.Object	element() Retrieves, but does not remove, the head of this queue.
boolean	offer(java.lang.Object arg0) Inserts the specified element into this queue, if possible.
java.lang.Object	poll() Retrieves and removes the head of this queue, or null if this queue is empty.
java.lang.Object	remove() Retrieves and removes the head of this queue.

Methods inherited from class java.util.Stack

empty, peek, pop, push, search

Methods inherited from class java.util.Vector

add, add, addAll, addAll, addElement, capacity, clear, clone, contains, containsAll, copyInto, elementAt, elements, ensureCapacity, equals, firstElement, get, hashCode, indexOf, indexOf, insertElementAt, isEmpty, lastElement, lastIndexOf, lastIndexOf, remove, remove, removeAll, removeAllElements, removeElement, removeElementAt, removeRange, retainAll, set, setElementAt, setSize, size, subList, toArray, toArray, toString, trimToSize

Methods inherited from class java.util.AbstractList

iterator, listIterator, listIterator

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface net.sf.bddbddb.order.Queue

peek

Methods inherited from interface java.util.Collection

add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray

Methods inherited from interface java.util.List

iterator, listIterator, listIterator

Constructor Detail

StackQueue

public StackQueue()

Method Detail

offer

public boolean offer(java.lang.Object arg0)

Description copied from interface: Queue

Inserts the specified element into this queue, if possible. When using queues that may impose insertion restrictions (for example capacity bounds), method offer is generally preferable to method Collection.add(E), which can fail to insert an element only by throwing an exception.

Specified by:

offer in interface Queue

Parameters:

arg0 - the element to insert.

Returns:

true if it was possible to add the element to this queue, else false

poll

public java.lang.Object poll()

Description copied from interface: Queue

Retrieves and removes the head of this queue, or null if this queue is empty.

Specified by:

poll in interface Queue

Returns:

the head of this queue, or null if this queue is empty.

remove

public java.lang.Object remove()

Description copied from interface: Queue

Retrieves and removes the head of this queue. This method differs from the poll method in that it throws an exception if this queue is empty.

Specified by:

remove in interface Queue

Returns:

the head of this queue.

element

public java.lang.Object element()

Description copied from interface: Queue

Retrieves, but does not remove, the head of this queue. This method differs from the peek method only in that it throws an exception if this queue is empty.

Specified by:

element in interface Queue

Returns:

the head of this queue.