Source code for gavo.rsc.tables

Common interface to table implementations.

#c Copyright 2008-2022, the GAVO project <>
#c This program is free software, covered by the GNU GPL.  See the
#c COPYING file in the source distribution.

from gavo.rsc import common
from gavo.rsc import dbtable
from gavo.rsc import table

[docs]def TableForDef(tableDef, suppressIndex=False, parseOptions=common.parseNonValidating, **kwargs): """returns a table instance suitable for holding data described by tableDef. This is the main interface to table instancation. suppressIndex=True can be used to suppress index generation on in-memory tables with primary keys. Use it when you are sure you will not need the index (e.g., if staging an on-disk table). See the `function getParseOptions`_ for what you can pass in as ``parseOptions``; arguments there can also be used here. """ if tableDef.onDisk: if tableDef.viewStatement: cls = dbtable.View else: cls = dbtable.DBTable return cls(tableDef, suppressIndex=suppressIndex, validateRows=parseOptions.validateRows, commitAfterMeta=parseOptions.commitAfterMeta, tableUpdates=parseOptions.doTableUpdates, **kwargs) elif tableDef.dupePolicy: return table.UniqueForcedTable(tableDef, validateRows=parseOptions.validateRows, **kwargs) elif tableDef.primary and not suppressIndex: return table.InMemoryIndexedTable(tableDef, validateRows=parseOptions.validateRows, **kwargs) else: return table.InMemoryTable(tableDef, validateRows=parseOptions.validateRows, **kwargs)