Package com.singularsys.extensions.mathml.builder

Class NumberBuilder

java.lang.Object

com.singularsys.extensions.mathml.builder.NumberBuilder

All Implemented Interfaces:

MathMLFragmentBuilder

public class NumberBuilder
extends Object
implements MathMLFragmentBuilder

Converts numeric-constants to CN nodes. Can produce

• <cn type="integer">value</cn> if is an Integer, Long or Short
• <cn type="e-notation">mantissa<sep/>exponent</cn> if Double.toString(val) produces scientific notation.
• <cn type="complex-cartesian">real<sep/>imaginary</cn> if the value is complex
• <notanumber/> for Doubles representing NaN's
• <infinity/> for Doubles representing +Infinity
• <apply><minus><infinity/><apply/> for Doubles representing -Infinity
• <cn type="integer">value</cn> for all other types
• <cn>value</cn> for all other types

The format of Double values with integral values depends on the doubleBehaviour flag

• ALLWAYS_DOUBLE <cn>2.0</cn>
• NO_DECIMALPOINT <cn>2</cn>
• TYPE_INTEGER <cn type="integer">2</cn>

Author:

Richard Morris

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	NumberBuilder.DoubleBehaviour	How to format Double objects with integral values.

Constructor Summary

Constructors

Constructor	Description
NumberBuilder()

Method Summary

Modifier and Type	Method	Description
Element	build(Node n, Document d, MathMLDocumentBuilder db)	Builds a Element for a jep Node.
Element	buildAsComplex(Complex val, Document d, MathMLDocumentBuilder db)
Element	buildAsDouble(double val, Document d, MathMLDocumentBuilder db)
Element	buildAsInteger(long val, Document d, MathMLDocumentBuilder db)
NumberBuilder.DoubleBehaviour	getDoubleBehaviour()
protected boolean	isInteger(Object val)	Test if a number is an integer.
void	setDoubleBehaviour(NumberBuilder.DoubleBehaviour doubleBehaviour)

Methods inherited from class java.lang.Object

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

Constructor Details

NumberBuilder

public NumberBuilder()

Method Details

buildAsInteger

public Element buildAsInteger(long val,
 Document d,
 MathMLDocumentBuilder db)

buildAsDouble

public Element buildAsDouble(double val,
 Document d,
 MathMLDocumentBuilder db)

buildAsComplex

public Element buildAsComplex(Complex val,
 Document d,
 MathMLDocumentBuilder db)

build

public Element build(Node n,
 Document d,
 MathMLDocumentBuilder db)
              throws JepException

Description copied from interface: MathMLFragmentBuilder

Builds a Element for a jep Node.

Specified by:

build in interface MathMLFragmentBuilder

Parameters:

n - The jep sub expression.

d - The document to create the element in.

db - Used create elements and attributes and child nodes.

Returns:

element representing the node

Throws:

JepException

isInteger

protected boolean isInteger(Object val)

Test if a number is an integer.

Parameters:

val - the value to test, typically a Number

Returns:

true if val is an Integer, Short or Long or if the Math.rint(val) == val, false otherwise

getDoubleBehaviour

public NumberBuilder.DoubleBehaviour getDoubleBehaviour()

setDoubleBehaviour

public void setDoubleBehaviour(NumberBuilder.DoubleBehaviour doubleBehaviour)