org.licas.autonomic.script

Class LoopStack

java.lang.Object

org.licas.autonomic.script.LoopStack

public class LoopStack
extends java.lang.Object

This is a stack that stores script loop evaluators, from a While loop.

Author:

Kieran Greer

Constructor Summary

Constructors

Constructor and Description
LoopStack() Create a new instance of LoopStack.

Method Summary

Modifier and Type	Method and Description
protected void	addControlLoop(AutoEngineInfo autoInfo) Add the control loop element if not already on the stack.
protected boolean	isEmpty() Return true if the loop stack is empty.
protected AutoEngineInfo	peek() Looks at the object at the top of this stack without removing it from the stack.
protected java.lang.Object	pop() Removes the object at the top of this stack and returns that object as the value of this function.
protected void	popLastLoop(java.lang.String internalID) Pop the last control loop element, if the internal ID matches.
protected void	push(AutoEngineInfo item) Pushes an item onto the top of this stack.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LoopStack

public LoopStack()

Create a new instance of LoopStack.

Method Detail

isEmpty

protected boolean isEmpty()

Return true if the loop stack is empty.

Returns:

true if no element on the stack.

pop

protected java.lang.Object pop()

Removes the object at the top of this stack and returns that object as the value of this function.

Returns:

the object at the top of this stack.

peek

protected AutoEngineInfo peek()

Looks at the object at the top of this stack without removing it from the stack.

Returns:

the object at the top of this stack.

push

protected void push(AutoEngineInfo item)

Pushes an item onto the top of this stack.

Parameters:

item - the object to add.

addControlLoop

protected void addControlLoop(AutoEngineInfo autoInfo)

Add the control loop element if not already on the stack.

Parameters:

autoInfo - the info element to add.

popLastLoop

protected void popLastLoop(java.lang.String internalID)

Pop the last control loop element, if the internal ID matches.

Parameters:

internalID - internal ID of the element last evaluated.