it.amattioli.workstate.actions
Class BeanShellGuard

Show UML class diagram

java.lang.Object
  it.amattioli.workstate.actions.AbstractGuard
      it.amattioli.workstate.actions.BeanShellGuard

All Implemented Interfaces:

Guard

public class BeanShellGuard
extends AbstractGuard

A guard implemented using a BeanShell script. This class allows to create a guard using a Java expression written in a string without creating a new class. The expression:

• must be BeanShell compatible
• must have a boolean return value
• can use state attributes and event parameters as variables

For example, if "attr1" is the name of a state attribute and "param1" is the name of an event parameter you can create a guard with:

new BeanShellGuard("attr1.equals(param1)");

Field Summary

Fields inherited from class it.amattioli.workstate.actions.AbstractGuard

USER_PRIORITY

Constructor Summary

BeanShellGuard(String code)
Build a guard using a BeanShell expression written in a string

Method Summary

boolean	check(AttributeReader event, AttributeReader state) Check if the condition is satisfied or not.
boolean	equals(Object o)
int	hashCode()
String	toString()

Methods inherited from class it.amattioli.workstate.actions.AbstractGuard

getPriority

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

BeanShellGuard

public BeanShellGuard(String code)

Build a guard using a BeanShell expression written in a string

Parameters:

code - a BeanShell expression with boolean return value

Method Detail

check

public boolean check(AttributeReader event,
                     AttributeReader state)

Description copied from interface: Guard

Check if the condition is satisfied or not. The check can be performed using event parameters and state attributes.

Parameters:

event - the event that triggered the transition to which this guard is associated

state - the state that completely contains the transition to which this guard is associated

toString

public String toString()

Overrides:

toString in class AbstractGuard

equals

public boolean equals(Object o)

Overrides:

equals in class AbstractGuard

hashCode

public int hashCode()

Overrides:

hashCode in class AbstractGuard