Package com.singularsys.jeptests.system

Class JepTest.MyNaryBinary

java.lang.Object

com.singularsys.jep.functions.PostfixMathCommand

com.singularsys.jep.functions.NaryBinaryFunction

com.singularsys.jeptests.system.JepTest.MyNaryBinary

All Implemented Interfaces:

PostfixMathCommandI, Serializable

Enclosing class:

JepTest

protected static class JepTest.MyNaryBinary
extends NaryBinaryFunction

An NaryBinary function

See Also:

• Serialized Form

Field Summary

Fields inherited from class com.singularsys.jep.functions.PostfixMathCommand

curNumberOfParameters, description, name, NaN, numberOfParameters

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	MyNaryBinary()

Method Summary

Modifier and Type	Method	Description
boolean	checkNumberOfParameters(int n)	Checks the number of parameters of the function.
Object	eval(Object l, Object r)	Evaluate given a pair of arguments.

Methods inherited from class com.singularsys.jep.functions.NaryBinaryFunction

eval, instanceOf, instanceOf, instanceOf, instanceOf, run

Methods inherited from class com.singularsys.jep.functions.PostfixMathCommand

asArray, asBool, asDouble, asInt, asLong, asStrictInt, asString, asType, getDescription, getDescription, getDescriptionWithType, getName, getNumberOfParameters, setCurNumberOfParameters, setDescription, setName, toString, toString

Methods inherited from class java.lang.Object

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

Constructor Details

MyNaryBinary

protected MyNaryBinary()

Method Details

checkNumberOfParameters

public boolean checkNumberOfParameters(int n)

Description copied from class: PostfixMathCommand

Checks the number of parameters of the function. Functions which set numberOfParameter=-1 should overload this method

Specified by:

checkNumberOfParameters in interface PostfixMathCommandI

Overrides:

checkNumberOfParameters in class NaryBinaryFunction

Parameters:

n - number of parameters function will be called with.

Returns:

false if an illegal number of parameters is supplied, true otherwise.

eval

public Object eval(Object l,
 Object r)
            throws EvaluationException

Description copied from class: NaryBinaryFunction

Evaluate given a pair of arguments. Must be specified for all implementing classes.

Specified by:

eval in class NaryBinaryFunction

Parameters:

l - lhs argument

r - rhs argument

Returns:

result of applying the function to the arguments

Throws:

EvaluationException - on error.