Package com.singularsys.extensions.mathml.parser

Class NullHandler

java.lang.Object

com.singularsys.extensions.mathml.parser.NullHandler

All Implemented Interfaces:

TagHandler

public class NullHandler
extends Object
implements TagHandler

Just returns null.

Author:

Richard Morris

Constructor Summary

Constructors

Constructor	Description
NullHandler()

Method Summary

Modifier and Type	Method	Description
static NullHandler	getInstance()
Object	handle(StackFrame frame, Locator loc)	Transform the element, called when a closing tag is encountered.

Methods inherited from class java.lang.Object

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

Constructor Details

NullHandler

public NullHandler()

Method Details

handle

public Object handle(StackFrame frame,
 Locator loc)

Description copied from interface: TagHandler

Transform the element, called when a closing tag is encountered.

Specified by:

handle in interface TagHandler

Parameters:

frame - StackFrame representing the element

loc - location in input

Returns:

typically a Node, other types of objects may also be returned when the tag has a special meaning for its parent node.

getInstance

public static NullHandler getInstance()