Event components notify the system when something occurs that you want to trigger task execution. For example, an event component may monitor a directory to watch for files being added. When a file is added to the directory, the event component triggers execution of its downstream task components.
The output schema of an event component appears in the Source tree of each task component it is connected to. This allows the event to pass data to the task.
The content of the output schema depends on the event component type and may also depend on the event component properties.
Event components have no input schema – they are output-only components.