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read_mode_sc.go
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read_mode_sc.go
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/*
* Copyright 2014-2022 Aerospike, Inc.
*
* Portions may be licensed to Aerospike, Inc. under one or more contributor
* license agreements.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package aerospike
import kvs "github.com/aerospike/aerospike-client-go/v7/proto/kvs"
// ReadModeSC is the read policy in SC (strong consistency) mode namespaces.
// Determines SC read consistency options.
type ReadModeSC int
const (
// ReadModeSCSession ensures this client will only see an increasing sequence of record versions.
// Server only reads from master. This is the default.
ReadModeSCSession ReadModeSC = iota
// ReadModeSCLinearize ensures ALL clients will only see an increasing sequence of record versions.
// Server only reads from master.
ReadModeSCLinearize
// ReadModeSCAllowReplica indicates that the server may read from master or any full (non-migrating) replica.
// Increasing sequence of record versions is not guaranteed.
ReadModeSCAllowReplica
// ReadModeSCAllowUnavailable indicates that the server may read from master or any full (non-migrating) replica or from unavailable
// partitions. Increasing sequence of record versions is not guaranteed.
ReadModeSCAllowUnavailable
)
func (rm ReadModeSC) grpc() kvs.ReadModeSC {
switch rm {
case ReadModeSCSession:
return kvs.ReadModeSC_SESSION
case ReadModeSCLinearize:
return kvs.ReadModeSC_LINEARIZE
case ReadModeSCAllowReplica:
return kvs.ReadModeSC_ALLOW_REPLICA
case ReadModeSCAllowUnavailable:
return kvs.ReadModeSC_ALLOW_UNAVAILABLE
}
panic(unreachable)
}