Package org.osid.installation

The Open Service Interface Definitions for the org.osid.installation service.

See: Description

Package org.osid.installation Description

The Open Service Interface Definitions for the org.osid.installation service.

The Installation OSID describes two categories of services. One service is to find, retrieve and manage installation packages in remote repositories, or Depots. The other service is to manage installations (downloaded packages) on Sites. Sites are generally, but not required to be, on local disk.

Packages

Packages define a set of core data and map to an independently retrieved and managed data stream. The data stream may be an archive file of a certain format. A Package may include multiple formats. Packages also may have other packages on which it depends for operation. Each version of a software package is a separate Package identified by a separate Id. Version chains may be defined to communicate newer available versions.

Installations

An installed package on a Site is an Installation. Installations are similar to Packages with a different set of core data and no access to the archive stream. Installations may also have dependencies and versioning.

Methods are defined to check for updates available in a Depot for an Installation, at which time the consumer may elect to install the new Package Id for the updated version. Depending on whether a provider keeps the older version around, delete operations may be available for outdated versions and allow for dependency management across versions.

Sites are assumed to be fixed to the runtime environment and are not manageable through the Installation OSID. As such, Sites are not modeled as OsidCatalogs and a single Installation may belong to only one Site.

Depot Cataloging

Packages are organized into Depots for categorization and federation using the OSID hierarchy pattern. Dynamic virtual Depots may be created by filtering on various Package attributes.

Versions

The Installation OSID defines an OsidPrimitive for a Version. A Version describes a version number.

Orchestration

The Installation OSID may be orchestrated with a Configuration OSID to retrieve or manage installation configurations.

Sub Packages

The Installation OSID contains an Installation Batch OSID for managing Packages and Installations in bulk.




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