What exactly is a jira component

Trying to figure out the terms here and how they're used. Are the components just jira classes? Why are they called components and what's the difference between a component and osgi component?

2 answers

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Hi John,

JIRA components are sub-sections of a project. They are used to group issues within a project into smaller parts.  I would take a look at Managing components and Defining a Component for more information.  The Stackoverflow post titled What is the difference between OSGi Components and Services provides this explanation in regards to OSGI Components:

A "component" tends to be an object whose lifecycle is managed, usually by a component framework such as Declarative Services (DS), Blueprint or iPOJO. See this page on the OSGi Community Wiki for a discussion of the different component frameworks available.

A component may have any of the following features, in combination or alone:

  • A component may be started and stopped; this would be considered an "active" component, though that is also an informal term. A component that doesn't need to be started or stopped is called passive.
  • A component may publish itself as an OSGi service.
  • A component may bind to or consume OSGi services.


Hopefully that provides a bit more clarity.

Cheers,

Branden

So it has nothing to do with the PICO container. I saw another answer that said,
"Components" can refer either to Pico components or to OSGi services.

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Joe Pitt Community Champion Jun 14, 2017

JIRA components as Branden said are simply a way to categorize work in a project. They can also have a different default assignee than the project lead. They have nothing to do with PICO or OSGi except you could use them to segregate work

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