Package index • blockr.process

The process table

A process definition is one wide table; these read it. Pure R.

example_process(): Example: a quarterly data collection as a wide process table
process_tasks(): Per-task metadata for a wide process table
process_status(): Computed display status for every task of a wide process table
process_groups() process_scopes() process_collection() process_complete_when() process_sequential() process_body(): Multi-instance groups of a wide process table
process_version(): Short content hash of a process definition

Instances and the event log

An instance is an append-only event log; opening one stamps the definition and the element list into it. Current state is a fold over the lines. Pure R.

start_instance(): Open an instance: stamp definition and elements into the store
instance_event(): Append one event to an instance store
instance_events(): Read an instance store's events
instance_view(): An instance as people should see it
instance_table(): An instance's expanded table, rebuilt from the store alone
instance_status(): Status of every row of an expanded instance
instance_log(): An instance's events, newest first
instance_latest(): The newest instance in a store
instance_definition(): The definition an instance was opened with
instance_collection(): The element list an instance was opened with
expand_instance(): Expand a definition into the instance-shaped table
apply_events(): Overlay an instance's events onto a process definition

The worker

The only thing in the package that executes anything – a plain R process, deliberately outside the app.

run_worker(): Run a process until it needs a person (or finishes)
process_act(): A person acts on a task
worker_alive(): Is a worker running on this store?
process_interpreters(): How a script file is executed, by extension
code_version(): Which version of the code ran

The inbox

How a system that is not R moves a process forward: one JSON file per message, the file name is the idempotency key.

inbox_dir(): The inbox directory of a store
write_inbox_message(): Write one inbox message
ingest_inbox(): Ingest the inbox: turn waiting messages into events

Blocks

The process on a blockr board.

new_process_block(): Process block (JS-driven editor)
new_start_instance_block(): Open-instance block
new_tasks_block(): Tasks block
new_bpmn_block(): BPMN block
new_runstate_block(): Instance state block
new_event_log_block(): Instance log block
new_assign_block(): Instance block (JS-driven)

BPMN

The diagram half – tidy model, interchange XML in both directions, auto-layout with lanes and pools, widget. Pure R plus a bundled JS renderer; depends on nothing else in the package.

bpmn(): Create a tidy BPMN model
as_bpmn(): Convert a wide process table to a tidy BPMN model
read_bpmn(): Read a BPMN 2.0 XML file into a tidy BPMN model
bpmn_to_table(): Convert a tidy BPMN model to a wide process-table scaffold
bpmn_xml(): Generate BPMN 2.0 XML from a tidy BPMN model
write_bpmn(): Write a tidy BPMN model to a .bpmn file
layout_bpmn(): Add auto-computed diagram layout to a BPMN model
bpmn_widget(): Render a tidy BPMN model as an interactive diagram
bpmnWidgetOutput() renderBpmnWidget(): Shiny bindings for bpmn_widget