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Creating and Running Workflows

from SpiffWorkflow.bpmn import BpmnWorkflow, BpmnEvent
from SpiffWorfkflow import TaskState

Parsing

Basic Parsing

from SpiffWorkflow.bpmn.parser import BpmnParser, BpmnValidator

Customized Parsing

from SpiffWorkflow.bpmn.parser import TaskParser, EventDefinitionParser

Examples

  • parsing
  • custom_task_spec

Script Engine

To modify the default execution environment

from SpiffWorkflow.bpmn.script_engine import TaskDataEnvironment

To control how the engine interacts with the workflow

from SpiffWorkflow.bpmn.script_engine import PythonScriptEngine

To implement custom exec/eval

from SpiffWorkflow.bpmn.script_engine import BasePythonScriptEngineEnvironment

Examples

  • script_engine

Specs

Using a Spec

from SpiffWorkflow.bpmn.specs import <TaskSpec>
from SpiffWorkflow.bpmn.specs.event_definition import <EventDefinition>

Extending a Spec

from SpiffWorkflow.bpmn.specs import BpmnTaskSpec           # Implements generic BPMN behavior
from SpiffWorkflow.bpmn.specs.mixins import <TaskSpecMixin> # Implements specific BPMN behavior

Implement a Datastore

from SpiffWorkflow.bpmn.spec import BpmnDataStoreSpecification

Examples

  • workflows
  • custom_task_spec

Serializer

Basic Usage

from SpiffWorkflow.bpmn.serializer import BpmnWorkflowSerializer

Custom Data

from SpiffWorkflow.bpmn.serializer import DefaultRegistry

Spec Customizations

from SpiffWorkflow.bpmn.serializer import DEFAULT_CONFIG
from SpiffWorkflow.bpmn.serializer.default import <TaskSpecConverter>
from SpiffWorkflow.bpmn.serializer.helpers import (
    TaskSpecConverter,
    EventDefinitionConverter,
    BpmnDataSpecificationConverter,
)

Examples

  • serialization
  • custom_task_spec

DMN

from SpiffWorkflow.dmn.parser import BpmnDmnParser
from SpiffWorkflow.dmn.specs import BusinessRuleTaskMixin
from SpiffWorkflow.dmn.serializer import BaseBusinessRuleTaskConverter

Spiff

from SpiffWorkflow.spiff.parser import SpiffBpmnParser, VALIDATOR
from SpiffWorkflow.spiff.specs import <TaskSpec>
from SpiffWorkflow.spiff.serializer import DEFAULT_CONFIG

Camunda

from SpiffWorkflow.camunda.parser import CamundaParser
from SpiffWorkflow.camunda.specs import <TaskSpec>
from SpiffWorkfllw.camunda.serializer import DEFAULT_CONFIG