Package com.singularsys.extensions.mathml.parser

Class AbstractHandler

java.lang.Object

com.singularsys.extensions.mathml.parser.AbstractHandler

All Implemented Interfaces:

TagHandler

Direct Known Subclasses:

AnnotationHandler, ApplyHandler, ConstantHandler, DeclareHandler, FnHandler, IdentifierHandler, MathTagHandler, MatrixHandler, NumericConstantHandler, SemanticHandler

public abstract class AbstractHandler
extends Object
implements TagHandler

Base class which provides access to Jep components

Author:

Richard Morris

Field Summary

Fields

Modifier and Type	Field	Description
protected final FunctionTable	ft
protected final Jep	jep
protected final NodeFactory	nf
protected final NumberFactory	numf
protected final OperatorTableI	ot
protected final VariableTable	vt

Constructor Summary

Constructors

Constructor	Description
AbstractHandler(Jep jep)

Method Summary

Modifier and Type	Method	Description
protected Node[]	convertChildrenToNodes(StackFrame frame, int start, Locator loc)	Converts the children of a StackFrame to an array of Nodes.
protected Node	convertToNode(StackFrame frame, Object arg, Locator loc)	Casts the argument to a Node.
FunctionTable	getFt()
Jep	getJep()
NodeFactory	getNf()
NumberFactory	getNumf()
OperatorTableI	getOt()
protected Node[]	jepNodesAsArray(StackFrame frame, Locator loc)	Convert those children which are nodes to a list, other nodes are ignored.
protected Node[]	jepNodesToFlatArray(StackFrame frame, Locator loc)	Convert those children which are nodes or arrays of nodes to a list.
protected List<Node>	jepNodesToFlatList(StackFrame frame)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.singularsys.extensions.mathml.parser.TagHandler

handle

Field Details

jep

protected final Jep jep

nf

protected final NodeFactory nf

ot

protected final OperatorTableI ot

numf

protected final NumberFactory numf

ft

protected final FunctionTable ft

vt

protected final VariableTable vt

Constructor Details

AbstractHandler

public AbstractHandler(Jep jep)

Method Details

convertToNode

protected Node convertToNode(StackFrame frame,
 Object arg,
 Locator loc)
                      throws SAXParseException

Casts the argument to a Node.

Parameters:

frame -

arg - the argument

loc -

Returns:

the argument cast as a Node.

Throws:

SAXParseException - if the argument is not a Node

convertChildrenToNodes

protected Node[] convertChildrenToNodes(StackFrame frame,
 int start,
 Locator loc)
                                 throws SAXParseException

Converts the children of a StackFrame to an array of Nodes.

Parameters:

frame - the StackFrame

start - the first child to convert

loc -

Returns:

an array of size (frame.getNumChildren - start)

Throws:

SAXParseException - if any of the arguments are not nodes

jepNodesAsArray

protected Node[] jepNodesAsArray(StackFrame frame,
 Locator loc)

Convert those children which are nodes to a list, other nodes are ignored.

Parameters:

frame -

loc -

Returns:

an array of nodes

jepNodesToFlatArray

protected Node[] jepNodesToFlatArray(StackFrame frame,
 Locator loc)

Convert those children which are nodes or arrays of nodes to a list.

Parameters:

frame -

loc -

Returns:

an array of nodes

jepNodesToFlatList

protected List<Node> jepNodesToFlatList(StackFrame frame)

getJep

public Jep getJep()

getNf

public NodeFactory getNf()

getOt

public OperatorTableI getOt()

getNumf

public NumberFactory getNumf()

getFt

public FunctionTable getFt()