Package gavo :: Package utils :: Module serializers

Module serializers

A framework for pluggable serialisation of (python) values.

This module collects a set of basic (looking primarily towards VOTables) serialiser factories. These are just functions receiving AnnotatedColumn objects and returning either None ("not responsible") or a function taking a value and returning a string. They may change the AnnotatedColumn objects, for instance, when an MJD (float) becomes a datetime.

These factories are registered in ValueMapperFactoryRegistry classes; the one used for "normal" VOTables is the defaultMFRegistry.

Most factories are created here. However, some depend on advance functionality not available here; they will be registered on import of the respective modules (for instance, stc).

In DaCHS, a second such factory registry is created in web.htmltable.

Classes
	ValueMapperFactoryRegistry An object clients can ask for functions fixing up values for encoding.
	AnnotatedColumn A collection of annotations for a column.

Functions

registerDefaultMF(factory)

source code

getMapperRegistry()
returns a copy of the default value mapper registry.

source code

Variables
	defaultMFRegistry = `<gavo.utils.serializers.ValueMapperFactory...`
	GEOMETRY_ARRAY_TYPES = `set(['sbox', 'scircle', 'spoint', 'spol...`
	__package__ = `'gavo.utils'`

Variables Details

defaultMFRegistry

Value:

<gavo.utils.serializers.ValueMapperFactoryRegistry object>

GEOMETRY_ARRAY_TYPES

Value:

set(['sbox', 'scircle', 'spoint', 'spoly'])