Call Workflow (Table Based)

This node can be used to call other workflows that reside either locally or remotely on the KNIME Hub. The called workflow may contain one or multiple of the following nodes to receive data from the workflow containing this node:

• Container Input (Table)
• Container Input (Variable)
• Container Input (Credentials)

It may also contain a Container Output (Table) node to define the interface between this workflow and the called workflow in the following way:

Send Table. The data table provided at the input of the Call Workflow (Table Based) node can be sent to a Container Input (Table) node in the called workflow via the input parameter defined in the Container Input (Table) node

Receive Table. After the execution of the called workflow, a data table can be received from a Container Output (Table) node in the called workflow via the output parameter defined in the Container Output (Table) node. The received data table will be made available at the output port of the Call Workflow (Table Based) node

Send Flow Variables. Certain flow variables available in the Call Workflow (Table Based) node can be sent to a Container Input (Variable) node in the called workflow. Currently, neither boolean, long, nor list or set flow variables are supported and will be ignored without warning. The supported types are mostly converted to string flow variables (e.g., path or URI flow variables), except for integer flow variables and non-NaN double flow variables. Note that the Call Workflow Service node supports all flow variable types.

Send Flow Credentials. All flow credentials available in the Call Workflow (Table Based) node can be sent to a Container Input (Credential) node in the called workflow via the credential-input defined in the Container Input (Credential) node

To call workflows on a KNIME Hub, a KNIME Space Connector node must be connected to this node. You can add a File System Connection port by clicking on the three dots on the node.

Input ports

1. Type: Table
   Input table
   The data to send to the callee workflow.

Output ports

1. Type: Table
   Output
   Data returned by the callee workflow.

File System Connection (Dynamic Inport)

An optional connection to a file system that contains the callee workflow or a hub instance that provides deployed workflows. The callee workflow will be executed where it is located, e.g., on the KNIME Hub. If a Hub Authenticator is connected, only workflows that have previously been deployed can be executed. If a Space Connector or Mountpoint connector is connected, any workflow can be selected and executed.

1. Type: File System
2. Type: AbstractHubAuthenticationPortObject