We assume that you have already learned what is described in:
If you want to find the right Transformer for your purposes, see Transformers Comparison.
Concatenate gathers data records from multiple inputs.
Component | Same input metadata | Sorted inputs | Inputs | Outputs | Java | CTL |
---|---|---|---|---|---|---|
Concatenate | yes | no | 1-n | 1 | - | - |
Concatenate receives potentially unsorted data records through one or more input ports. (Metadata of all input ports must be the same.) Concatenate gathers all the records in the order of input ports and sends them to the single output port. It gathers input records starting with the first input port, continuing with the next one and ending with the last port. Within each input port the records order is preserved.
Port type | Number | Required | Description | Metadata |
---|---|---|---|---|
Input | 0 | yes | For input data records | Any |
1-n | no | For input data records | Input 01) | |
Output | 0 | yes | For gathered data records | Input 01) |
Legend:
1): Metadata can be propagated through this component. All output metadata must be the same.