Package com.singularsys.jep.misc.threadsafeeval

Class ThreadSafeAssign

java.lang.Object

com.singularsys.jep.functions.PostfixMathCommand

com.singularsys.jep.functions.Assign

com.singularsys.jep.misc.threadsafeeval.ThreadSafeAssign

All Implemented Interfaces:

CallbackEvaluationI, PostfixMathCommandI, java.io.Serializable

public class ThreadSafeAssign
extends Assign

An assignment operator so we can do x=3+4. This function implements the CallbackEvaluationI interface so that it handles setting the value of a variable. Any Variable or functions which implements LValueI can appear on the left hand side of the equation.

Since:

Jep 3.5

Author:

Rich Morris

See Also:

Assign, Serialized Form

Field Summary

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

curNumberOfParameters, name, NaN, numberOfParameters

Constructor Summary

Constructors

Constructor	Description
ThreadSafeAssign()

Method Summary

Modifier and Type	Method	Description
java.lang.Object	evaluate(Node node, Evaluator pv)	For assignment set the value of the variable on the lhs to value returned by evaluating the right-hand side.

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

asArray, asBool, asDouble, asInt, asLong, asStrictInt, asString, checkNumberOfParameters, getName, getNumberOfParameters, run, setCurNumberOfParameters, setName, toString, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ThreadSafeAssign

public ThreadSafeAssign()

Method Detail

evaluate

public java.lang.Object evaluate(Node node,
                                 Evaluator pv)
                          throws EvaluationException

For assignment set the value of the variable on the lhs to value returned by evaluating the right-hand side.

Specified by:

evaluate in interface CallbackEvaluationI

Overrides:

evaluate in class Assign

Parameters:

node - The current node

pv - The visitor, can be used evaluate the children

Returns:

the value after evaluation. This value will be passed to other functions higher up the node tree. The value can be any type including Double or Vector<Object>

Throws:

EvaluationException - if the calculation cannot be performed

See Also:

Evaluator