uk.ac.starlink.ttools.votlint

Class HandlerStack

java.lang.Object

uk.ac.starlink.ttools.votlint.HandlerStack

public class HandlerStack
extends Object

Data structure which keeps track of the elements currently in scope during the SAX parse.

Since:

7 Apr 2005

Author:

Mark Taylor (Starlink)

Constructor Summary

Constructors

Constructor and Description
HandlerStack()

Method Summary

Modifier and Type	Method and Description
Ancestry	getAncestry() Returns an ancestry object for the handler at the top of this stack.
ElementHandler	pop() Pops a handler off the top of the stack.
void	push(ElementHandler handler) Pushes a new handler onto the stack.
ElementHandler	top() Returns the handler at the top of the list without removing it.

Methods inherited from class java.lang.Object

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

Constructor Detail

HandlerStack

public HandlerStack()

Method Detail

pop

public ElementHandler pop()

Pops a handler off the top of the stack.

Returns:

the element which has just been removed

push

public void push(ElementHandler handler)

Pushes a new handler onto the stack.

Parameters:

handler - handler to push

top

public ElementHandler top()

Returns the handler at the top of the list without removing it.

Returns:

top element

getAncestry

public Ancestry getAncestry()

Returns an ancestry object for the handler at the top of this stack. This is only valid for as long as that object is still in the stack. An attempt to use it after that point will give garbage results or may result in an unchecked throwable.

Returns:

ancestry for the top element