org.epics.pvmanager.formula

Class StatefulFormulaFunction

java.lang.Object

org.epics.pvmanager.formula.StatefulFormulaFunction

All Implemented Interfaces:

FormulaFunction

Direct Known Subclasses:

DynamicFormulaFunction

public abstract class StatefulFormulaFunction
extends Object
implements FormulaFunction

A formula function that maintains a state. Each instance of the function will have its own instance.

One object will be created for each instance of the function. The member variable can be accessed with the guarantee that each object will be isolated from the others. There is no need of synchronization.

Author:

carcassi

Constructor Summary

Constructors

Constructor and Description
StatefulFormulaFunction()

Method Summary

Modifier and Type	Method and Description
void	dispose() Called when this instance of the formula is not needed anymore.
boolean	isPure() Whether the function is a pure function, given the same arguments always returns the same result.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.epics.pvmanager.formula.FormulaFunction

calculate, getArgumentNames, getArgumentTypes, getDescription, getName, getReturnType, isVarArgs

Constructor Detail

StatefulFormulaFunction

public StatefulFormulaFunction()

Method Detail

isPure

public final boolean isPure()

Description copied from interface: FormulaFunction

Whether the function is a pure function, given the same arguments always returns the same result.

Specified by:

isPure in interface FormulaFunction

Returns:

true if it's a pure function

dispose

public void dispose()

Called when this instance of the formula is not needed anymore.