L3 - Default Background:
There is the possibility to create so called "standalone tasks" by either using the Camunda Tasklist function "Create Task" or calling the REST-API ("POST /task/create").
Standalone tasks differ from regular process tasks e.g. by not belonging to a definition/not having an execution.
User Story (Required on creation):
As a developer, I want to be able to build a filter query that returns all existing standalone tasks using the task REST-API (e.g. Get List (POST))
Functional Requirements (Required before implementation):
- Query for standalone tasks via REST API
- Query for standalone tasks in filters
- Support querying within OR queries
Technical Requirements (Required before implementation):
- Add a new query option to the Task Query API like "isStandaloneTask"
- Consider the option in the task entity mappings
- Supported the option in task filters
- Make the option available in the REST APIs for querying (historic) tasks
Limitations of Scope (Optional):
Hints (optional):
Querying for the absence of a definition or execution by posting something like this to the REST-API:
#POST /task
{
"processDefinitionId": null,
"executionId": null
}
does not seem to do the job.
As a result, the query filter seems to be ignored and always all tasks are returned including the regular process tasks.