dballe::DB Class Reference

#include <db.h>


Detailed Description

Wrap a dba_db.

Public Member Functions

 DB (dba_db db)
 Wraps an existing dba_db, taking charge of memory allocation.
 DB (const std::string &dsn, const std::string &user, const std::string &password)
 Create a dba_db connecting to a database with the given parameters.
void disconnect ()
 Explicitly disconnect from the database.
void reset (const std::string &repinfo_file=std::string())
 Wipe the database and reinitialize it, taking the initial repinfo values from the given file, or from the default repinfo.csv.
Cursor queryAna (const Record &query)
 Query pseudoana information, retrieving the extra pseudoana info for every station.
Cursor query (const Record &query)
 Query data values.
Cursor queryAnaSummary (const Record &query)
 Query pseudoana information, without retrieving the extra pseudoana info.
Cursor queryLevels (const Record &query)
 Query the list of levels present in the database.
Cursor queryTimeRanges (const Record &query)
 Query the list of time ranges for which there is data in the database.
Cursor queryLevelsAndTimeRanges (const Record &query)
 Query the list of levels and time ranges for which there is data in the database.
Cursor queryVariableTypes (const Record &query)
 Query the list of variable types present in the database.
Cursor queryIdents (const Record &query)
 Query the list of movable station identifiers present in the database.
Cursor queryReports (const Record &query)
 Query the report information for which there is data in the database.
Cursor queryDateTimes (const Record &query)
 Query the list of date and times for which there is data in the database.
int attrQuery (int context, dba_varcode var, Record &res) const
 Query the attributes for the given variable in the given context.
int attrQuery (int context, dba_varcode var, const std::vector< dba_varcode > &wanted, Record &res) const
 Query the attributes for the given variable in the given context.
int insert (Record &rec, bool canReplace, bool addToPseudoana, int *anaid=NULL)
 Insert values from a record into the database.
void attrInsert (int context, dba_varcode var, Record &data)
void attrInsertCurrent (const Cursor &cur, Record &data)
void attrInsertNew (int context, dba_varcode var, Record &data)
void attrInsertNewCurrent (const Cursor &cur, Record &data)
void remove (const Record &query)
 Remove from the database all the values that match the given query.
void removeOrphans ()
 Remove all the pseudoana and context entries which have no data.
void attrRemove (int context, dba_varcode var, dba_varcode attr)
void attrRemoveAll (int context, dba_varcode var)
void attrRemoveList (int context, dba_varcode var, const std::vector< dba_varcode > &attrs)
void exportResults (Record &query, dba_encoding encoding, const std::string &file)
 Export the results of a query to a file, using the given encoding.
void exportResultsAsGeneric (Record &query, dba_encoding encoding, const std::string &file)
 Export the results of a query to a file, using the given encoding and a generic BUFR and CREX template.
const dba_db db () const
 Access the underlying dba_db.
dba_db db ()
 Access the underlying dba_db.

Member Function Documentation

void dballe::DB::disconnect (  )  [inline]

Explicitly disconnect from the database.

This is normally performed in the contructor, but an explicit disconnect is needed to support language bindings, such as python previously to 2.5, with unpredictable object destruction patterns.

int dballe::DB::insert ( Record rec,
bool  canReplace,
bool  addToPseudoana,
int *  anaid = NULL 
) [inline]

Insert values from a record into the database.

Parameters:
rec The record with the values to insert.
canReplace True if existing values can be replaced.
addToPseudoana True if a nonexisting pseudoana entry can be created.
Return values:
anaid If a pseudoana entry has been created, this is its database ID.
Returns:
The context id of the values that have been inserted.

References dballe::Record::rec().


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

Generated on Fri Aug 1 15:23:03 2008 for dballe++ by  doxygen 1.5.6