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CdbHistoryBrowser Class Reference
[CdbAdmin]

This class provides a high level interface to the history records. More...

#include <CdbHistoryBrowser.hh>

List of all members.

Public Methods

 CdbHistoryBrowser (CdbPtr theCdb=0)
 The default and normal constructor.

 CdbHistoryBrowser (const CdbHistoryBrowser &theBrowser)
 The copy constructor.

virtual ~CdbHistoryBrowser ()
 The destructor.

CdbHistoryBrowser & operator= (const CdbHistoryBrowser &theBrowser)
 The assignment operator.

const CdbPtr & parent () const
 Return a pointer to the parent object.

CdbStatus iterator (CdbHistoryEventItr &theItr, const char *theQuery)
 Make a query defined in the SQL alike language.


Private Attributes

CdbPtr _myParent

Detailed Description

This class provides a high level interface to the history records.

This class provides various query interfaces to the persistent history records found at all levels of the Conditions/DB. One of the forms of making queries is to specify requests defined in SQL alike language. The other simpler forms are also provided. The history events obtained from different sources are joined and sorted according to their timestamps.

Note, that objects of this class operate in the context of a specific Cdb object passed to the constructor of the current class.

See also:
Cdb

Definition at line 21 of file CdbHistoryBrowser.hh.

Constructor & Destructor Documentation

CdbHistoryBrowser::CdbHistoryBrowser (  CdbPtr    theCdb = 0 ) 
 

The default and normal constructor.

Takes a backlink to the parent API object. It can be a pointer pointing onto the null object. Then a default object will be found.

See also:
Cdb , CdbPtr
Parameters:
thePtr  the back link to the parent object

Definition at line 12 of file CdbHistoryBrowser.cc.

CdbHistoryBrowser::CdbHistoryBrowser (  const CdbHistoryBrowser &    theBrowser ) 
 

The copy constructor.

Details...

Definition at line 16 of file CdbHistoryBrowser.cc.

CdbHistoryBrowser::~CdbHistoryBrowser (    )  [virtual]
 

The destructor.

More details...

Definition at line 20 of file CdbHistoryBrowser.cc.

Member Function Documentation

CdbStatus CdbHistoryBrowser::iterator (  CdbHistoryEventItr &    theItr,
const char *    theQuery
) 
 

Make a query defined in the SQL alike language.

Result is returned through a specified iterator to the history events. The iterator will be set into a "valid" state upon successfull completion.

See also:
CdbIItr::isValid() , CdbHistoryEventItr , CdbStatus
Returns:
completion status
Parameters:
theItr  an iterator to be initialized
theQuery  the query specification

Definition at line 39 of file CdbHistoryBrowser.cc.

References cout, and CdbStatus::Error.

CdbHistoryBrowser & CdbHistoryBrowser::operator= (  const CdbHistoryBrowser &    theBrowser ) 
 

The assignment operator.

Details...

Definition at line 24 of file CdbHistoryBrowser.cc.

References _myParent.

const CdbPtr & CdbHistoryBrowser::parent (    ) 
 

Return a pointer to the parent object.

See also:
Cdb , CdbPtr

Definition at line 33 of file CdbHistoryBrowser.cc.

References _myParent.

Referenced by CdbBdbTestCompilation::miscClasses().

Member Data Documentation

CdbPtr CdbHistoryBrowser::_myParent [private]
 

Definition at line 77 of file CdbHistoryBrowser.hh.

Referenced by operator=(), and parent().

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

 

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Page Owner: Jacek Becla
Last Update: October 04, 2002