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request.go
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request.go
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/*
* EliasDB
*
* Copyright 2016 Matthias Ladkau. All rights reserved.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
package cluster
import "encoding/gob"
func init() {
// Make sure we can use the relevant types in a gob operation
gob.Register(&DataRequest{})
gob.Register(make(map[string]string))
}
/*
RequestType is the type of a request
*/
type RequestType string
/*
List of all possible request types
*/
const (
// Main DB
RTGetMain RequestType = "GetMain"
RTSetMain = "SetMain"
// Roots
RTGetRoot = "GetRoot"
RTSetRoot = "SetRoot"
// Insert data
RTInsert = "Insert"
// Update data
RTUpdate = "Update"
// Free data
RTFree = "Free"
// Check for data
RTExists = "Exists"
// Retrieve data
RTFetch = "Fetch"
// Rebalance data
RTRebalance = "Rebalance"
)
/*
DataRequestArg is a data request argument
*/
type DataRequestArg string
/*
List of all possible data request parameters.
*/
const (
RPStoreName DataRequestArg = "StoreName" // Name of the store
RPLoc = "Loc" // Location of data
RPVer = "Ver" // Version of data
RPRoot = "Root" // Root id
RPSrc = "Src" // Request source member
)
/*
DataRequest data structure
*/
type DataRequest struct {
RequestType RequestType // Type of request
Args map[DataRequestArg]interface{} // Request arguments
Value interface{} // Request value
Transfer bool // Flag for data transfer request
}