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write_policy.go
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write_policy.go
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// Copyright 2013-2014 Aerospike, Inc.
//
// 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
// Container object for policy attributes used in write operations.
// This object is passed into methods where database writes can occur.
type WritePolicy struct {
BasePolicy
// Qualify how to handle writes where the record already exists.
RecordExistsAction RecordExistsAction //= RecordExistsAction.UPDATE;
// Qualify how to handle record writes based on record generation. The default (NONE)
// indicates that the generation is not used to restrict writes.
GenerationPolicy GenerationPolicy //= GenerationPolicy.NONE;
// Expected generation. Generation is the number of times a record has been modified
// (including creation) on the server. If a write operation is creating a record,
// the expected generation would be 0
Generation int
// Record expiration. Also known as ttl (time to live).
// Seconds record will live before being removed by the server.
// Expiration values:
// -1: Never expire for Aerospike 2 server versions >= 2.7.2 and Aerospike 3 server
// versions >= 3.1.4. Do not use -1 for older servers.
// 0: Default to namespace configuration variable "default-ttl" on the server.
// > 0: Actual expiration in seconds.
Expiration int
// Send user defined key in addition to hash digest on a record put.
// The default is to not send the user defined key.
SendKey bool
}
func NewWritePolicy(generation, expiration int) *WritePolicy {
return &WritePolicy{
BasePolicy: *NewPolicy(),
RecordExistsAction: UPDATE,
GenerationPolicy: NONE,
Generation: generation,
Expiration: expiration,
SendKey: false,
}
}