Merge Join

This component joins all received objects and merges them. If there are any overlapping keys, the last object that came in will be leading.

Configuration

Count

Specifies the number of objects that it should receive for a specific key.

Example: 2

Timeout in ms

Specifies an optional timeout in which all the objects for a specific key should be received. 0 means disabled.

Example: 0

Join key

They key it should use for joining the incoming messages.

Example: _id

Inputs

• Name: Input

  • Description: Any data in object form.

  • Example 1:

    {
      "_id":"12345",
      "name" : {
        "systemName": "My system name"
      }
    }

  • Example 2:

    {
      "_id":"12345",
      "name" : {
        "displayName": "My display name"
      },
      "description": "My Description"
    }

Force Merge Button

• Description: Ignores the count or timeout and merges pending objects.

Outputs

• Name: Output

  • Description: The merged object.

  • Example:

    Consider that example input 1 came in first and example input 2 came in second.

    {
      "_id":"12345",
      "name" : {
        "displayName": "My display name"
      },
      "description": "My Description"
    }