com.singularsys.jep.misc.functions
Class IsType

java.lang.Object
  com.singularsys.jep.functions.PostfixMathCommand
      com.singularsys.jep.functions.UnaryFunction
          com.singularsys.jep.misc.functions.IsType

All Implemented Interfaces:

PostfixMathCommandI, java.io.Serializable

public class IsType
extends UnaryFunction

Tests if a value is an instance of a specified type. The result is true if the argument is an instance of the specified type, false otherwise. For example

jep.addFunction("isNumber",new IsType(Number.class));

Author:

Richard Morris

See Also:

Serialized Form

Field Summary

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

curNumberOfParameters, name, NaN, numberOfParameters

Constructor Summary

IsType(java.lang.Class<?> classType)

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

IsType

public IsType(java.lang.Class<?> classType)

Parameters:

classType - the class to test with

Method Detail

eval

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

Specified by:

eval in class UnaryFunction

Throws:

EvaluationException