bool IndDBase::attach( const std::string & n )
{
if ( n == "-" || n == "." ) { dettach(); return false; }
if ( ! Helper::fileExists(n) )
{
new_db(n);
return true;
}
sql.open(n);
index();
init();
//
// Load new meta-information table
//
set_metatypes( );
return true;
}
bool NetDBase::attach( const std::string & name )
{
if ( name == "-" || name == "." ) { dettach(); return false; }
//if ( Helper::fileExists( name ) ) { sql.open( name ); return true; }
if ( attached() ) dettach();
sql.open( name );
// Create database
sql.synchronous(false);
// Edge table ( double-enter n1-n2 and n2-n1 )
sql.query(" CREATE TABLE IF NOT EXISTS edges("
" node1_id INTEGER , "
" node2_id INTEGER , "
" score REAL ) ; " );
sql.query( "CREATE TABLE IF NOT EXISTS nodes("
" node_id INTEGER PRIMARY KEY , "
" name VARCHAR(12) ); " );
// Indices
index();
stmt_insert_node = sql.prepare( " INSERT OR REPLACE INTO nodes( name ) values( :name ); " );
stmt_fetch_node = sql.prepare( " SELECT node_id FROM nodes WHERE name == :name ; " );
stmt_insert_edge = sql.prepare( " INSERT OR REPLACE INTO edges( node1_id , node2_id , score ) values( :n1 , :n2 , :score ); " );
stmt_fetch_connections = sql.prepare( " SELECT name FROM nodes WHERE node_id IN ( SELECT node2_id FROM edges WHERE node1_id == :n ) ; " );
return true;
}
void CSoundRender_Target::stop ()
{
dettach ();
pEmitter = NULL;
rendering = FALSE;
}
OSGLContextAttacher::~OSGLContextAttacher()
{
dettach();
}
~SharedMemory()
{
dettach();
}
void CSoundRender_TargetA::source_changed()
{
dettach();
attach();
}
