ApplyHandler (Jep with extensions API )

java.lang.Object
- com.singularsys.extensions.mathml.parser.AbstractHandler
- - com.singularsys.extensions.mathml.parser.ApplyHandler

All Implemented Interfaces:

TagHandler
```
public class ApplyHandler
extends AbstractHandler
```
Handles the <apply> container element. The first child node specifies a function or operator and the remaining child nodes are its arguments.
The default action for most operators and functions is to build an ASTOpNode/ASTFunNode from the function. Some functions require special behaviour and these should extend SpecialFunctionHandler implementing the apply method.

Author:

Richard Morris

Field Summary
- Fields inherited from class com.singularsys.extensions.mathml.parser.AbstractHandler
  ft, jep, nf, numf, ot, vt

Constructor Summary

Constructors
Constructor Description

ApplyHandler(Jep jep)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.Object`	`handle(StackFrame frame, org.xml.sax.Locator loc)`	Returns a Node representing the operator or function applied to the arguments.

Methods inherited from class com.singularsys.extensions.mathml.parser.AbstractHandler
convertChildrenToNodes, convertToNode, getFt, getJep, getNf, getNumf, getOt, jepNodesAsArray, jepNodesToFlatArray, jepNodesToFlatList

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ApplyHandler
```
public ApplyHandler(Jep jep)
```
    Parameters:
    
    jep -
- Method Detail
  - handle
```
public java.lang.Object handle(StackFrame frame,
                               org.xml.sax.Locator loc)
                        throws org.xml.sax.SAXParseException
```
    Returns a Node representing the operator or function applied to the arguments. The function is the first child of the node and subsaquent children are its arguments. For operators this will be an ASTOpNode, for Functions its an ASTFunNode For a SpecialFunctionHandler just call its apply method.
    
    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.
    
    Throws:
    
    org.xml.sax.SAXParseException