com.udojava.evalex

Class Expression.Function

java.lang.Object

com.udojava.evalex.Expression.LazyFunction

com.udojava.evalex.Expression.Function

Enclosing class:

Expression

public abstract class Expression.Function
extends Expression.LazyFunction

Abstract definition of a supported expression function. A function is defined by a name, the number of parameters and the actual processing implementation.

Constructor Summary

Constructors

Constructor and Description
Expression.Function(String name, int numParams)

Method Summary

Methods

Modifier and Type	Method and Description
abstract BigDecimal	eval(List<BigDecimal> parameters) Implementation for this function.
com.udojava.evalex.Expression.LazyNumber	lazyEval(List<com.udojava.evalex.Expression.LazyNumber> lazyParams)

Methods inherited from class com.udojava.evalex.Expression.LazyFunction

getName, getNumParams, numParamsVaries

Methods inherited from class java.lang.Object

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

Constructor Detail

Expression.Function

public Expression.Function(String name,
                   int numParams)

Method Detail

lazyEval

public com.udojava.evalex.Expression.LazyNumber lazyEval(List<com.udojava.evalex.Expression.LazyNumber> lazyParams)

Specified by:

lazyEval in class Expression.LazyFunction

eval

public abstract BigDecimal eval(List<BigDecimal> parameters)

Implementation for this function.

Parameters:

parameters - Parameters will be passed by the expression evaluator as a List of BigDecimal values.

Returns:

The function must return a new BigDecimal value as a computing result.