The Combine Collections Transformer takes a payload that is a collection of collections and combines them into a single list. For example, if the payload contains one collection with elements A and B and another with C and D, it will output a single collection with elements A, B, C, D. It is often used after the Scatter-Gather component to flatten the collection of collections returned into a single collection. The transformer converts a MuleMessageCollection into a MuleMessage.

1. Combine Collections Transformer
- By Rahul Kumar

2. Combine Collections Transformer
Takes a payload which is a Collection of Collections and turns into a single
List. For example, if the payload is a Collection which contains a Collection
with elements A and B and another Collection with elements C and D, this
will turn them into a single Collection with elements A, B, C and D.
Often used after the Scatter-Gather component which sends the message to
each route concurrently and returns a collections of all result. Flattens a
collection of collections into one collection

3. Combine Collections Transformer
Often used after the Scatter-Gather component which sends the message to
each route concurrently and returns a collections of all result. Flattens a
collection of collections into one collection
Converts MuleMessageCollection into a MuleMessage

4. Usage
Place Combine Collections Transformer from the place where you want to use
transformation on multiple Collections.

5. Thank You