rc_t AlignRefTableCursor(const VTable* table, const VCursor *native_curs, const VCursor** ref_cursor,const VTable **reftbl)
{
rc_t rc = 0;
char ref_tbl_name[512] = "REFERENCE";
const KMetadata* meta;
const VCursor *curs;
if( (rc = VTableOpenMetadataRead(table, &meta)) == 0 ) {
const KMDataNode* node;
if( (rc = KMetadataOpenNodeRead(meta, &node, "CONFIG/REF_TABLE")) == 0 ) {
size_t sz;
rc = KMDataNodeReadCString(node, ref_tbl_name, sizeof(ref_tbl_name), &sz);
ref_tbl_name[sz] = '\0';
KMDataNodeRelease(node);
}
KMetadataRelease(meta);
}
rc = VCursorLinkedCursorGet(native_curs,ref_tbl_name,&curs);
if(rc != 0){
const VDatabase *db;
const VTable *tbl;
/* get at the parent database */
rc = VTableOpenParentRead ( table, & db );
if(rc != 0) return rc;
/* open the table */
rc = VDatabaseOpenTableRead ( db, &tbl, ref_tbl_name);
VDatabaseRelease ( db );
if(rc != 0) return rc;
/* create a cursor */
rc = VTableCreateCachedCursorRead(tbl, &curs,256*1024*1024);
if(reftbl){
*reftbl = tbl;
} else {
VTableRelease(tbl);
}
if(rc != 0) return rc;
rc = VCursorPermitPostOpenAdd( curs );
if(rc != 0) return rc;
rc = VCursorOpen( curs );
if(rc != 0) return rc;
if(native_curs){
rc = VCursorLinkedCursorSet(native_curs,ref_tbl_name,curs);
}
if(rc != 0) return rc;
} else {
VCursorAddRef(curs);
}
*ref_cursor = curs;
return 0;
}
rc_t SRATableFillOut ( SRATable *self, bool update )
{
rc_t rc;
/* require these operations to succeed */
rc = VCursorPermitPostOpenAdd(self->curs);
if ( rc != 0 )
return rc;
rc = VCursorOpen(self->curs);
if ( rc != 0 )
return rc;
self -> curs_open = true;
if ( ! update )
rc = SRATableLoadMetadata(self);
return rc;
}
void CVDBCursor::Init(const CVDBTable& table)
{
if ( *this ) {
NCBI_THROW2(CSraException, eInvalidState,
"Cannot init VDB cursor again",
RC(rcApp, rcCursor, rcConstructing, rcSelf, rcOpen));
}
if ( rc_t rc = VTableCreateCursorRead(table, x_InitPtr()) ) {
*x_InitPtr() = 0;
NCBI_THROW2(CSraException, eInitFailed,
"Cannot create VDB cursor", rc);
}
if ( rc_t rc = VCursorPermitPostOpenAdd(*this) ) {
NCBI_THROW2(CSraException, eInitFailed,
"Cannot allow VDB cursor post open column add", rc);
}
if ( rc_t rc = VCursorOpen(*this) ) {
NCBI_THROW2(CSraException, eInitFailed,
"Cannot open VDB cursor", rc);
}
m_Table = table;
}
