lccd::DBCondHandler Class Reference

Implementation of ConditionsHandlerBase that reads the conditions data from the database. More...

#include <DBCondHandler.hh>

Inheritance diagram for lccd::DBCondHandler:

List of all members.

Public Member Functions
	DBCondHandler (const std::string &dbInit, const std::string &folder, const std::string &name, const std::string &tag="")
	Default constructor.
virtual void	update (LCCDTimeStamp timeStamp)
	Retrieves the conditions data from the data base if time stamp exceeds current validity time range. Notifies all registered listeners if conditions have changed.
Protected Attributes
lccd::DBInterface *	_db
std::string	_dbInit
std::string	_folder
std::string	_tag

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Detailed Description

Implementation of ConditionsHandlerBase that reads the conditions data from the database.

On every call to update() it checks whether the provided time stamp exceeds the validity of the current conditions data. If so, new constants are retrieved from the data base.

Author:

F.Gaede, DESY

Version:

Id

DBCondHandler.hh,v 1.1.1.1 2005/02/10 12:17:54 gaede Exp

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Constructor & Destructor Documentation

lccd::DBCondHandler::DBCondHandler (  const std::string &  dbInit, const std::string &  folder, const std::string &  name, const std::string &  tag = "" )

Default constructor. You have to specify the following parameters: Parameters: dbInit:  initialization string for the database, e.g. "localhost:lccd_test:calvin:hobbes" folder:  name of the database folder name:  of this conditions data set - used, e.g. as collection name in update(LCEvent* evt) tag:  tag to be used for queries, HEAD if omitted

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

• DBCondHandler.hh

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