com.singularsys.jep.functions
Class Identity

java.lang.Object
  com.singularsys.jep.functions.PostfixMathCommand
      com.singularsys.jep.functions.UnaryFunction
          com.singularsys.jep.functions.Identity

All Implemented Interfaces:

PostfixMathCommandI, java.io.Serializable

public class Identity
extends UnaryFunction

A Unary operator which does nothing, used for unary plus +x.

Author:

Richard Morris

See Also:

Serialized Form

Field Summary

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

curNumberOfParameters, name, NaN, numberOfParameters

Constructor Summary

Identity()

Method Summary

java.lang.Object

eval(java.lang.Object arg)

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

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

Identity

public Identity()

Method Detail

eval

public java.lang.Object eval(java.lang.Object arg)
                      throws EvaluationException

Specified by:

eval in class UnaryFunction

Throws:

EvaluationException