Script

class systemds.script_building.script.DMLScript(context: SystemDSContext)

DMLScript is the class used to describe our intended behavior in DML. This script can be then executed to get the results.

add_code(code: str) → None

Add a dml code line to our script

Parameters:

code – the dml code line

add_input_from_python(var_name: str, input_var: DAGNode) → None

Add an input for our preparedScript. Should only be executed for data that is python local.

Parameters:

• var_name – name of variable

• input_var – the DAGNode object which has data

build_code(dag_root: DAGNode) → None

Builds code from our DAG

Parameters:

dag_root – the topmost operation of our DAG, result of operation will be output

execute() → JavaObject

If not already created, create a preparedScript from our DMLCode, pass python local data to our prepared script, then execute our script and return the resultVariables

Returns:

resultVariables of our execution

execute_with_lineage() → Tuple[JavaObject, str]

If not already created, create a preparedScript from our DMLCode, pass python local data to our prepared script, then execute our script and return the resultVariables

Returns:

resultVariables of our execution and the string lineage trace