Package all of the resources in your message flow into a broker archive (BAR) file, for deployment.
You cannot deploy a message flow application directly to an execution group. Instead, you package all of the relevant resources into a BAR file, which you then deploy. When you add files to the broker archive, they are automatically compiled as part of the process. JAR files that are required by JavaCompute nodes in message flows are added automatically from your Java™ project.
The broker archive file is a compressed file, which is sent to the Configuration Manager, where its contents are extracted and distributed to execution groups. If an execution group has not been initialized on the broker (that is, if the broker has only just been created), the execution group is created as part of the deployment.
Completely deploying a BAR file tells the Configuration Manager to extract the deployable content of the BAR file and to send the contents to an execution group, first removing any existing deployed contents of the execution group.