github.com/cockroachdb/cockroach@v20.2.0-alpha.1+incompatible/pkg/kv/kvbase/range_cache.go (about) 1 // Copyright 2019 The Cockroach Authors. 2 // 3 // Use of this software is governed by the Business Source License 4 // included in the file licenses/BSL.txt. 5 // 6 // As of the Change Date specified in that file, in accordance with 7 // the Business Source License, use of this software will be governed 8 // by the Apache License, Version 2.0, included in the file 9 // licenses/APL.txt. 10 11 // Package kvbase exports kv level interfaces to avoid dependency cycles. 12 package kvbase 13 14 import ( 15 "context" 16 17 "github.com/cockroachdb/cockroach/pkg/roachpb" 18 ) 19 20 // RangeDescriptorCache is a simplified interface to the kv.RangeDescriptorCache 21 // for use at lower levels of the stack like storage. 22 type RangeDescriptorCache interface { 23 24 // LookupRangeDescritor looks up a range descriptor based on a key. 25 LookupRangeDescriptor( 26 ctx context.Context, key roachpb.RKey, 27 ) (*roachpb.RangeDescriptor, error) 28 }