com.singularsys.jep.misc.functions
Class IsType

java.lang.Object
  extended by com.singularsys.jep.functions.PostfixMathCommand
      extended by com.singularsys.jep.functions.UnaryFunction
          extended by 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


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