Simple Java component in Mule
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This document provides instructions for using a Java class in Mule, an integration platform. It describes creating a Java component that implements the Callable interface and overrides the onCall method. This method gets the current MuleMessage payload from the event context, casts it to a string, and returns a new string payload. Using a Java component allows manipulating or reformatting payload values.
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Simple Java component in Mule
- 1. Simple Java Component in Mule
- 2. How to use Java in Mule • Ever wonder how to use your own java class or utility in mule? Here is a simple sample on how to use a java component or class in mule. • This project used mule 3.8 and 6.0 anypointstudio.
- 3. Building your Java Component • Assuming that you already created a new project. In this sample, I created a project named “simplejavacomponent”.
- 4. • Also created a package for the java class i will create.
- 6. • Based from the previous slide, I created a class named “SimpleJavaComponent”. • Also implement an interface named “Callable” from org.mule.api.lifecycle. You need this inherit classes by overriding the method “onCall” with a parameter name “MuleEventContext”. • The override method simply returns any object or Object.
- 8. • In the previous slide, I simply get the current MuleMessage from the eventContext or MuleEventContext. • Then I get the current payload and Cast it in a String. Then I simply return a String payload just to showcase how to call a java component. You can return any objects in onCall. • You can used this functionality if you want to get values from current payload and manipulate those values to a new payload or simply regenerate the current payload to correct or format some values.
- 12. END