Package org.exolab.adaptx.util
Class QuickStack
java.lang.Object
org.exolab.adaptx.util.QuickStack
A representation of a Stack that does not use Synchronization.
For compatibility this class supports the same methods as a
java.util.Stack (JDK)
- Version:
- $Revision: 3633 $ $Date: 2003-03-01 08:38:44 +0100 (Sat, 01 Mar 2003) $
- Author:
- Keith Visco
-
Nested Class Summary
Nested Classes -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionboolean
empty()
Tests for an empty Stackiterator()
Returns an Iterator for this Stack.peek()
Returns the Object that is currently on top of the Stack.pop()
Removes and returns the Object that is currently on top of the Stack.void
Adds the given Object to the top of the Stackint
Searches for the given Object in the stack and returns it's position relative to the top of the Stack (ie the number of calls to #pop() before the object is returned by #pop())int
size()
Returns the number of items on the Stack
-
Constructor Details
-
QuickStack
public QuickStack()Creates an empty Stack
-
-
Method Details
-
empty
public boolean empty()Tests for an empty Stack- Returns:
- true if there are no elements on the stack, otherwise false.
-
iterator
Returns an Iterator for this Stack. The iterator will iterate from the top of the stack, to the bottom -
peek
Returns the Object that is currently on top of the Stack. Unlike #pop the Object is not removed from the Stack.- Returns:
- the Object that is currently the top of the stack
- Throws:
EmptyStackException
- when there are no elements currently on the Stack
-
pop
Removes and returns the Object that is currently on top of the Stack.- Returns:
- the Object that is currently the top of the stack
- Throws:
EmptyStackException
- when there are no elements currently on the Stack
-
push
Adds the given Object to the top of the Stack -
search
Searches for the given Object in the stack and returns it's position relative to the top of the Stack (ie the number of calls to #pop() before the object is returned by #pop()) -
size
public int size()Returns the number of items on the Stack- Returns:
- the number of items on the Stack
-