frostfs-node/pkg/local_object_storage/shard/select.go
Leonard Lyubich 383c483be7 [#176] localstore: Draft storage engine shard structure and ops
Implement the primary structure and operation of the local object
storage shard.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
2020-12-11 17:19:37 +03:00

42 lines
952 B
Go

package shard
import (
objectSDK "github.com/nspcc-dev/neofs-api-go/pkg/object"
)
// SelectPrm groups the parameters of Select operation.
type SelectPrm struct {
filters objectSDK.SearchFilters
}
// SelectRes groups resulting values of Select operation.
type SelectRes struct {
addrList []*objectSDK.Address
}
// WithFilters is a Select option to set the object filters.
func (p *SelectPrm) WithFilters(fs objectSDK.SearchFilters) *SelectPrm {
if p != nil {
p.filters = fs
}
return p
}
// AddressList returns list of addresses of the selected objects.
func (r *SelectRes) AddressList() []*objectSDK.Address {
return r.addrList
}
// Select selects the objects from shard that match select parameters.
//
// Returns any error encountered that
// did not allow to completely select the objects.
func (s *Shard) Select(prm *SelectPrm) (*SelectRes, error) {
s.mtx.RLock()
defer s.mtx.RUnlock()
// FIXME: implement me
return nil, nil
}