What Is FLUSH?

The FLUSH method is a real-life saver when it comes to SAP ABAP. While unsuitable for every object, it can be highly effective for GUI communications like JavaBean form screens and navigator objects. In short, the FLUSH method is worth knowing if you want to get the most out of SAP ABAP. FLUSH is used in SAP ABAP classes to handle communications between objects, logic controllers and automation controllers. The FLUSH method plays an essential role in the communication between ABAP/JavaBean components. It can also pass importing parameters from generated proxies to an associated Java server. The FLUSH feature of ABAP is essential, and as its name implies, it removes method calls from the queue that SAP uses to limit the number of remote function calls. The program then picks up these methods from the column, ensuring no alterations to their execution sequence. FLUSH determines the synchronization point for all forms in the process. If you use the FLUSH method to communicate with a Java server, you might need to provide a request parameter each time you invoke a request. If you are working with an asynchronous Java server, you must provide a request parameter, the request-id, each time you gather a request. When it comes to automating tasks, the FLUSH method is an essential tool used to streamline the process. Once the transactions in the automation queue have been executed, FLUSH sends all command lines and keystrokes to the screen without waiting for a user's response or other command lines. This means that it can save time and effort for those working with automated processes. However, as with any tool, issues can arise when using the FLUSH method. Sometimes, errors can occur when sharing the methods from the automation queue with the front end. In these cases, exceptions are generated within the FLUSH function. While this is not a common occurrence, it is something to be aware of when using this method.