SwiftLMDB

This is a fork of agisboye/SwiftLMDB but the functionality has been altered to better suit its purpose in an internal project.

Features

Requirements

iOS 11.0+, macOS 10.11+ or Linux
Swift 4.1

Installation

Swift Package Manager

// swift-tools-version:4.0

import PackageDescription

let package = Package(
    ...
    dependencies: [
        .package(url: "https://github.com/jernejstrasner/SwiftLMDB.git", .branch("master"))
    ],
    ...
)

Usage

Start by importing the module.

import SwiftLMDB

Creating a database

Databases are contained within an environment. An environment may contain multiple databases, each identified by their name.

let environment: Environment
let database: Database

do {
    // The folder in which the environment is opened must already exist.
    try FileManager.default.createDirectory(at: envURL, withIntermediateDirectories: true, attributes: nil)

    environment = try Environment(path: envURL.path, flags: [], maxDBs: 32)
    database = try environment.openDatabase(named: "db1", flags: [.create])

} catch {
    print(error)
}

Put a value

do {
    let val = "Hello World!".data(using: .utf8)
    ley key = "key1".data(using: .utf8)
    try database.put(value: val, forKey: key)
} catch {
    print(error)
}

Get a value

do {
    ley key = "key1".data(using: .utf8)
    if let value = try database.get(forKey: key) {
        // Data
    }
} catch {
    print(error)
}

Delete a value

do {
    ley key = "key1".data(using: .utf8)
    try database.deleteValue(forKey: key)
} catch {
    print(error)
}

Contributing

Contributions are very welcome. Open an issue or submit a pull request.

License

SwiftLMDB is available under the MIT license. See the LICENSE file for more info. LMDB is licensen under the OpenLDAP Public License.