- #Java interface multiple extends how to
- #Java interface multiple extends full
- #Java interface multiple extends code
It is past time to stop fooling ourselves that automation scripts are not customizations, any such suggestion probably started as IBM marketing. We make these tools freely available to give back to the Maximo community and to provide a solution to this significant problem.
#Java interface multiple extends code
Sharptree has spent several years developing our VS Code extension ( ) and corresponding command line utility ( ) to enable proper development practices, including automating deployments with DevOps pipelines and enabling release controls. We did this to highlight that automation scripts are as much a customization as a Java class is and to draw attention to the need to take automation scripting seriously.
#Java interface multiple extends how to
In this post we explored how to extend Java classes and implement Java interfaces in an automation script. For this reason we assign the service variable to the local localService variable so that the interface implementation has access to the service object after the script has executed. Interface implementations have access to the script local variables, but do not have access to the script's implicit variables such as the service implicit variable. In this case the Java type is provided as the first argument and the interface implementation as the second. JavaScript handles implementing interfaces in the same way as extending a class, the built in Java.extend function is again used. While this example completes after a minute, this could be used to run a background process indefinitely if desired. Note that this process starts when the script it called and continues to run in the background for one minute after the script was invoked.
The new BackgroundRunnable object will write a message to the log every 10 seconds for a minute after the script has been invoked to demonstrate that it is running in the background. For our second example will implement the interface to create a custom runnable object that can be run in a background thread. Note that in JavaScript, all objects are a map of properties and as such the number variable and read() function are properties of the object map.Īutomation scripts can also implement Java interfaces. Here we have extended the InputStream and defined a member variable of number and the necessary read() function to return the incrementing number member variable. The extend function takes a Java type object as the first argument and the class implementations in JavaScript as the second. To extend a Java class in JavaScript use the the built in Java.extend function. We will then create a loop to print 10 consecutive numbers to the log. To keep the example simple we will create a new class named IncrementInputStream that returns an ever incrementing number every time the read() function is called. Extending classesįor our first example we will extend the java.io.InputStream abstract Java class. It's true, custom Java classes never went away, they have just been cleverly disguised and repackaged in a more trendy form.
To demonstrate this point, in this post we are going to explore how to implement custom Java classes in an automation script. If there are lingering doubts that automation scripts are the same as Java, automation scripts even allow you to implement custom Java classes.
However, they are still a customization and need to be taken as seriously as any Java customization. You can quickly build, test and deploy solutions without downtime or system disruptions and generally the skill level needed to do so is much lower, making Maximo develop accessible to more people.
There are many great things about automation scripts. I am not arguing that automation scripts are bad.
#Java interface multiple extends full
This means that anyone with access to automation scripts also has full, unaudited access to the entire system since with full database and operating system access, audit tables and other such measures are easily bypassed. Automation scripts allow full access to every function in Maximo, the database and in many cases the underlying operating system. If you are not using source control to store and control the release of your automation scripts, combined with tight procedures for migration and promotion, this is a situation far worse than having Java customizations. That the language is JavaScript or Jython and is editable in a text box in Maximo instead of being compiled to a Java class merely provides the dangerous illusion of configuration. Since automation scripts are usually positioned as a configuration, the question arises, why not just use Migration Manager and the other tools provided with Maximo? The simple answer is that automation scripts are not configuration, but rather are customizations that should be treated with the rigor and seriousness of any development activity. We have spent the last few years progressively building tools and processes for managing and developing automation scripts.
0 kommentar(er)
