Flow properties | IBM Cloud Pak for Data as a Service

Flow properties

Note: Some of the information on this page is for stream files created in SPSS Modeler Desktop and doesn't apply to SPSS Modeler in Cloud Pak for Data.

You can control a variety of flow properties with scripting. To reference flow properties, you must set the execution method to use scripts:

stream = modeler.script.stream()
stream.setPropertyValue("execute_method", "Script")

Example

The node property is used to refer to the nodes in the current flow. The following flow script provides an example:

stream = modeler.script.stream()
annotation = stream.getPropertyValue("annotation")

annotation = annotation + "\n\nThis flow is called \"" + stream.getLabel() + "\" and
 contains the following nodes:\n"

for node in stream.iterator():
    annotation = annotation + "\n" + node.getTypeName() + " node called \"" + node.getLabel()
 + "\""

stream.setPropertyValue("annotation", annotation)

The previous example uses the node property to create a list of all nodes in the flow and write that list in the flow annotations. The annotation produced looks like this:

This flow is called "druglearn" and contains the following nodes:

type node called "Define Types"
derive node called "Na_to_K"
variablefile node called "DRUG1n"
neuralnetwork node called "Drug"
c50 node called "Drug"
filter node called "Discard Fields"

Flow properties are described in the following table.

Table 1. Flow properties
Property name	Data type	Property description
`execute_method`	`Normal` `Script`
`date_format`	`"DDMMYY" "MMDDYY" "YYMMDD" "YYYYMMDD" "YYYYDDD" DAY MONTH "DD-MM-YY" "DD-MM-YYYY" "MM-DD-YY" "MM-DD-YYYY" "DD-MON-YY" "DD-MON-YYYY" "YYYY-MM-DD" "DD.MM.YY" "DD.MM.YYYY" "MM.DD.YYYY" "DD.MON.YY" "DD.MON.YYYY" "DD/MM/YY" "DD/MM/YYYY" "MM/DD/YY" "MM/DD/YYYY" "DD/MON/YY" "DD/MON/YYYY" MON YYYY q Q YYYY ww WK YYYY`
`date_baseline`	number
`date_2digit_baseline`	number
`time_format`	`"HHMMSS" "HHMM" "MMSS" "HH:MM:SS" "HH:MM" "MM:SS" "(H)H:(M)M:(S)S" "(H)H:(M)M" "(M)M:(S)S" "HH.MM.SS" "HH.MM" "MM.SS" "(H)H.(M)M.(S)S" "(H)H.(M)M" "(M)M.(S)S"`
`time_rollover`	flag
`import_datetime_as_string`	flag
`decimal_places`	number
`decimal_symbol`	`Default` `Period` `Comma`
`angles_in_radians`	flag
`use_max_set_size`	flag
`max_set_size`	number
`ruleset_evaluation`	`Voting` `FirstHit`
`refresh_source_nodes`	flag	Use to refresh import nodes automatically upon flow execution.
`script`	string
`annotation`	string
`name`	string	This property is read-only. If you want to change the name of a flow, you should save it with a different name.
`parameters`		Use this property to update flow parameters from within a stand-alone script.
`nodes`		See detailed information that follows.
`encoding`	`SystemDefault` `"UTF-8"`
`stream_rewriting`	boolean
`stream_rewriting_maximise_sql`	boolean
`stream_rewriting_optimise_clem_ execution`	boolean
`stream_rewriting_optimise_syntax_ execution`	boolean
`enable_parallelism`	boolean
`sql_generation`	boolean
`database_caching`	boolean
`sql_logging`	boolean
`sql_generation_logging`	boolean
`sql_log_native`	boolean
`sql_log_prettyprint`	boolean
`record_count_suppress_input`	boolean
`record_count_feedback_interval`	integer
`use_stream_auto_create_node_ settings`	boolean	If true, then flow-specific settings are used, otherwise user preferences are used.
`create_model_applier_for_new_ models`	boolean	If true, when a model builder creates a new model, and it has no active update links, a new model applier is added.
`create_model_applier_update_links`	`createEnabled` `createDisabled` `doNotCreate`	Defines the type of link created when a model applier node is added automatically.
`create_source_node_from_builders`	boolean	If true, when a source builder creates a new source output, and it has no active update links, a new import node is added.
`create_source_node_update_links`	`createEnabled` `createDisabled` `doNotCreate`	Defines the type of link created when an import node is added automatically.
`has_coordinate_system`	boolean	If true, applies a coordinate system to the entire flow.
`coordinate_system`	string	The name of the selected projected coordinate system.
`deployment_area`	`modelRefresh` `Scoring` `None`	Choose how you want to deploy the flow. If this value is set to `None`, no other deployment entries are used.
`scoring_terminal_node_id`	string	Choose the scoring branch in the flow. It can be any terminal node in the flow.
`scoring_node_id`	string	Choose the nugget in the scoring branch.
`model_build_node_id`	string	Choose the modeling node in the flow.