Package gavo :: Package svcs

Package svcs

Services, cores, and support.

A Service is something that receives some sort of structured data (typically, a nevow context), processes it into input data using a grammar (default is the ContextGrammar), pipes it through a core to receive a data set and optionally tinkers with that data set.

A core receives a data set, processes it, and returns another data set.

Support code is in common. Most importantly, this is QueryMeta, a data structure carrying lots of information on the query being processed.

Submodules

gavo.svcs.common: Common functions and classes for services and cores.
gavo.svcs.computedcore: Cores wrapping some external program directly, or having some python code doing things.
gavo.svcs.core: Cores are the standard object for computing things in the DC.
gavo.svcs.customcore: User-defined cores
gavo.svcs.customwidgets: Nevow formal custom widgets used by the DC (enumerations, table options, etc)
gavo.svcs.dalipars: DALI-type input parameters.
gavo.svcs.inputdef: Description and handling of inputs to services.
gavo.svcs.outputdef: Output tables and their components.
gavo.svcs.pql: Code to support PQL syntax (as found in various DAL protocols).
gavo.svcs.renderers: A manual registry of renderers.
gavo.svcs.runner: Methods and classes to run programs described through DataDescriptors within a twisted event loop.
gavo.svcs.service: Services, i.e.
gavo.svcs.standardcores: Some standard cores for services.
gavo.svcs.streaming: Streaming out large computed things using twisted and threads.
gavo.svcs.uploadcores: Cores to alter the DB state from the Web.
gavo.svcs.vanity: Parsing and maintaining URL shortcuts.
gavo.svcs.vizierexprs: Classes and methods to support vizier-type specifications on fields.

Variables
	__package__ = `'gavo.svcs'`