com.singularsys.jep.misc.nullwrapper
Class NullWrapperNary

java.lang.Object
  extended by com.singularsys.jep.functions.PostfixMathCommand
      extended by com.singularsys.jep.functions.NaryFunction
          extended by com.singularsys.jep.misc.nullwrapper.NullWrapperNary
All Implemented Interfaces:
PostfixMathCommandI, java.io.Serializable

public class NullWrapperNary
extends NaryFunction

Wrap an NaryFunction with a new function so that if any argument is null null is returned.

Since:
3.4
Author:
Richard Morris
See Also:
Serialized Form

Field Summary
 
Fields inherited from class com.singularsys.jep.functions.PostfixMathCommand
curNumberOfParameters, name, NaN, numberOfParameters
 
Constructor Summary
NullWrapperNary(NaryFunction fun)
           
 
Method Summary
 java.lang.Object eval(java.lang.Object[] args)
          Evaluate the function
 
Methods inherited from class com.singularsys.jep.functions.NaryFunction
run
 
Methods inherited from class com.singularsys.jep.functions.PostfixMathCommand
asArray, asBool, asDouble, asInt, asLong, asStrictInt, asString, checkNumberOfParameters, checkStack, getName, getNumberOfParameters, setCurNumberOfParameters, setName, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

NullWrapperNary

public NullWrapperNary(NaryFunction fun)
Parameters:
fun -
Method Detail

eval

public java.lang.Object eval(java.lang.Object[] args)
                      throws EvaluationException
Description copied from class: NaryFunction
Evaluate the function

Specified by:
eval in class NaryFunction
Parameters:
args - arguments to the function
Returns:
value returned by the function
Throws:
EvaluationException


Copyright © 2010 Singular Systems http://www.singularsys.com/jep