indra::util::named_query::NamedQueryManager Class Reference

List of all members.

Public Member Functions
def	__init__
def	sql
def	get
Private Attributes
	_dir
	_cached_queries

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Detailed Description

Manages the lifespan of NamedQuery objects, drawing from a
directory hierarchy of named query documents.

In practice this amounts to a memory cache of NamedQuery objects.

Definition at line 454 of file named_query.py.

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Member Function Documentation

def indra::util::named_query::NamedQueryManager::__init__	(		self,
			named_queries_dir
	)

Initializes a manager to look for named queries in a
directory.

Definition at line 460 of file named_query.py.

def indra::util::named_query::NamedQueryManager::sql	(		self,
			connection,
			name,
			params
	)

Definition at line 466 of file named_query.py.

def indra::util::named_query::NamedQueryManager::get	(		self,
			name
	)

Returns a NamedQuery instance based on the name, either
from memory cache, or by parsing from disk.

The name is simply a relative path to the directory associated
with the manager object.  Before returning the instance, the
NamedQuery object is cached in memory, so that subsequent
accesses don't have to read from disk or do any parsing.  This
means that NamedQuery objects returned by this method are
shared across all users of the manager object.
NamedQuery.refresh is used to bring the NamedQuery objects in
sync with the actual files on disk.

Definition at line 470 of file named_query.py.

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Member Data Documentation

indra::util::named_query::NamedQueryManager::_dir [private]

Definition at line 463 of file named_query.py.

indra::util::named_query::NamedQueryManager::_cached_queries [private]

Definition at line 464 of file named_query.py.

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The documentation for this class was generated from the following file:

• lib/python/indra/util/named_query.py