void BtreeCursor::init( const shared_ptr< FieldRangeVector > &bounds, int singleIntervalLimit, int direction ) {
_finishConstructorInit();
_bounds = bounds;
verify( _bounds );
_direction = direction;
_endKeyInclusive = true;
_boundsIterator.reset( new FieldRangeVectorIterator( *_bounds , singleIntervalLimit ) );
_independentFieldRanges = true;
dassert( d->idxNo((IndexDetails&) indexDetails) == idxNo );
startKey = _bounds->startKey();
_boundsIterator->advance( startKey ); // handles initialization
_boundsIterator->prepDive();
_indexDescriptor.reset(CatalogHack::getDescriptor(d, idxNo));
_indexAM.reset(CatalogHack::getBtreeIndex(_indexDescriptor.get()));
IndexCursor *cursor;
_indexAM->newCursor(&cursor);
_indexCursor.reset(cursor);
CursorOptions opts;
opts.direction = _direction == 1 ? CursorOptions::INCREASING : CursorOptions::DECREASING;
_indexCursor->setOptions(opts);
_indexCursor->seek(_boundsIterator->cmp(), _boundsIterator->inc());
_hitEnd = false;
skipAndCheck();
dassert( _dups.size() == 0 );
}
void BtreeCursor::init( const BSONObj& sk, const BSONObj& ek, bool endKeyInclusive, int direction ) {
_finishConstructorInit();
startKey = sk;
endKey = ek;
_endKeyInclusive = endKeyInclusive;
_direction = direction;
_independentFieldRanges = false;
audit();
}
void BtreeCursor::init( const shared_ptr< FieldRangeVector > &bounds, int singleIntervalLimit, int direction ) {
_finishConstructorInit();
_bounds = bounds;
verify( _bounds );
_direction = direction;
_endKeyInclusive = true;
_boundsIterator.reset( new FieldRangeVectorIterator( *_bounds , singleIntervalLimit ) );
_independentFieldRanges = true;
audit();
startKey = _bounds->startKey();
_boundsIterator->advance( startKey ); // handles initialization
_boundsIterator->prepDive();
bucket = indexDetails.head;
keyOfs = 0;
}
void BtreeCursor::init( const BSONObj& sk, const BSONObj& ek, bool endKeyInclusive, int direction ) {
_finishConstructorInit();
startKey = sk;
endKey = ek;
_endKeyInclusive = endKeyInclusive;
_direction = direction;
_independentFieldRanges = false;
dassert( d->idxNo((IndexDetails&) indexDetails) == idxNo );
_indexDescriptor.reset(CatalogHack::getDescriptor(d, idxNo));
_indexAM.reset(CatalogHack::getBtreeIndex(_indexDescriptor.get()));
IndexCursor *cursor;
_indexAM->newCursor(&cursor);
_indexCursor.reset(cursor);
CursorOptions opts;
opts.direction = _direction == 1 ? CursorOptions::INCREASING : CursorOptions::DECREASING;
cursor->setOptions(opts);
_hitEnd = false;
}
