Produced by OpenMix: https://openmix.org

Mix XDI

DI, IoC container

Overview

A library for creating objects and managing their dependencies. This library can be used for managing dependencies in a unified way, managing global objects, and refreshing dynamic configurations.

Installation

go get github.com/mix-go/xdi

Quick start

Create a singleton through dependency configuration

package main

import (
    "github.com/mix-go/xdi"
)

type Foo struct {
}

func init() {
    obj := &xdi.Object{
        Name: "foo",
        New: func() (interface{}, error) {
            i := &Foo{}
            return i, nil
        },
    }
    if err := xdi.Provide(obj); err != nil {
        panic(err)
    }
}

func main() {
    var foo *Foo
    if err := xdi.Populate("foo", &foo); err != nil {
        panic(err)
    }
    // use foo
}

Reference

Refer to another dependency configuration instance in the dependency configuration

package main

import (
    "github.com/mix-go/xdi"
)

type Foo struct {
    Bar *Bar
}

type Bar struct {
}

func init() {
    objs := []*xdi.Object{
        {
            Name: "foo",
            New: func() (interface{}, error) {
                // reference bar
                var bar *Bar
                if err := xdi.Populate("bar", &bar); err != nil {
                    return nil, err
                }

                i := &Foo{
                    Bar: bar,
                }
                return i, nil
            },
        },
        {
            Name: "bar",
            New: func() (interface{}, error) {
                i := &Bar{}
                return i, nil
            },
            NewEverytime: true,
        },
    }
    if err := xdi.Provide(objs...); err != nil {
        panic(err)
    }
}

func main() {
    var foo *Foo
    if err := xdi.Populate("foo", &foo); err != nil {
        panic(err)
    }
    // use foo
}

Refresh singleton

When the configuration information changes during program execution, Refresh() can refresh the singleton instance to switch to using the new configuration. It is commonly used in microservice configuration centers.

obj, err := xdi.DefaultContainer.Object("foo")
if err != nil {
    panic(err)
}
if err := obj.Refresh(); err != nil {
    panic(err)
}

License

Apache License Version 2.0, http://www.apache.org/licenses/