Join

Overview

The Join Component merges messages from the join port with each message on the in port, ensuring that data from both sources is combined before proceeding in the workflow.

Usage

This component is useful for synchronizing data streams, allowing separate inputs to be merged into a single structured message.

Input Ports

Port	Description
join	Receives a message that will be attached to every message arriving on the in port.
in	Receives primary input messages that will be merged with the join message.

Output Ports

Port	Description
out	Sends merged messages combining data from both input ports.

Processing Logic

1. Receives Join Message: Stores the message received on the join port.

2. Queues Incoming Messages: Messages from the in port are queued until a join message is available.

3. Merges Data: Once both inputs are received, messages are combined and sent to the out port.

4. Respects Execution Order: Ensures join data is only applied to messages from the current test execution.

Notes

• Ensures Data Synchronization: Prevents messages from being processed until a join message is received.

• Supports Test Automation: Works alongside BeforeAll and AfterAll to maintain test flow consistency.

• Efficient Message Processing: Queues and batches messages for optimal execution.

This component is essential for workflows requiring data synchronization across multiple input streams before further processing.