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C#

Dependency Injection - Manual and Ninject Style

//	Manual example
public class Samurai
{
    private readonly IWeapon _weapon;
 
    public Samurai(IWeapon weapon)
    {
        _weapon = weapon;
    }
 
    public void Attack(string target)
    {
        _weapon.Hit(target);
    }
}
 
public class Program
{
    static void Main() {
        Samurai samurai = new Samurai(new Sword());
        samurai.Attack("bad programmers");
        Console.ReadLine();
    }
}

//	Using Ninject
public interface IWarrior
{
    void Attack(string target);
}
 
public class Samurai : IWarrior
{
    private readonly IWeapon _weapon;
 
    public Samurai(IWeapon weapon)
    {
        _weapon = weapon;
    }
 
    public void Attack(string target)
    {
        _weapon.Hit(target);
    }
}
 
public class Program
{
    static void Main()
    {
        IKernel kernel = new StandardKernel();
 
        kernel.Bind<IWarrior>().To<Samurai>();
        kernel.Bind<IWeapon>().To<Sword>();
 
        IWarrior samurai = kernel.Get<IWarrior>();
 
        samurai.Attack("bad programmers");
 
        Console.ReadLine();
    }
}
https://snipt.net/embed/f60ad5fff20120f9fd31e65628e7cf46/
/raw/f60ad5fff20120f9fd31e65628e7cf46/
f60ad5fff20120f9fd31e65628e7cf46
csharp
C#
62
2019-07-23T12:43:35
True
False
False
May 22, 2013 at 07:07 AM
/api/public/snipt/61928/
dependency-injection-manual-and-ninject-style
<table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><a href="#L-1"> 1</a> <a href="#L-2"> 2</a> <a href="#L-3"> 3</a> <a href="#L-4"> 4</a> <a href="#L-5"> 5</a> <a href="#L-6"> 6</a> <a href="#L-7"> 7</a> <a href="#L-8"> 8</a> <a href="#L-9"> 9</a> <a href="#L-10">10</a> <a href="#L-11">11</a> <a href="#L-12">12</a> <a href="#L-13">13</a> <a href="#L-14">14</a> <a href="#L-15">15</a> <a href="#L-16">16</a> <a href="#L-17">17</a> <a href="#L-18">18</a> <a href="#L-19">19</a> <a href="#L-20">20</a> <a href="#L-21">21</a> <a href="#L-22">22</a> <a href="#L-23">23</a> <a href="#L-24">24</a> <a href="#L-25">25</a> <a href="#L-26">26</a> <a href="#L-27">27</a> <a href="#L-28">28</a> <a href="#L-29">29</a> <a href="#L-30">30</a> <a href="#L-31">31</a> <a href="#L-32">32</a> <a href="#L-33">33</a> <a href="#L-34">34</a> <a href="#L-35">35</a> <a href="#L-36">36</a> <a href="#L-37">37</a> <a href="#L-38">38</a> <a href="#L-39">39</a> <a href="#L-40">40</a> <a href="#L-41">41</a> <a href="#L-42">42</a> <a href="#L-43">43</a> <a href="#L-44">44</a> <a href="#L-45">45</a> <a href="#L-46">46</a> <a href="#L-47">47</a> <a href="#L-48">48</a> <a href="#L-49">49</a> <a href="#L-50">50</a> <a href="#L-51">51</a> <a href="#L-52">52</a> <a href="#L-53">53</a> <a href="#L-54">54</a> <a href="#L-55">55</a> <a href="#L-56">56</a> <a href="#L-57">57</a> <a href="#L-58">58</a> <a href="#L-59">59</a> <a href="#L-60">60</a> <a href="#L-61">61</a> <a href="#L-62">62</a></pre></div></td><td class="code"><div class="highlight"><pre><span></span><span id="L-1"><a name="L-1"></a><span class="c1">// Manual example</span> </span><span id="L-2"><a name="L-2"></a><span class="k">public</span> <span class="k">class</span> <span class="nc">Samurai</span> </span><span id="L-3"><a name="L-3"></a><span class="p">{</span> </span><span id="L-4"><a name="L-4"></a> <span class="k">private</span> <span class="k">readonly</span> <span class="n">IWeapon</span> <span class="n">_weapon</span><span class="p">;</span> </span><span id="L-5"><a name="L-5"></a> </span><span id="L-6"><a name="L-6"></a> <span class="k">public</span> <span class="nf">Samurai</span><span class="p">(</span><span class="n">IWeapon</span> <span class="n">weapon</span><span class="p">)</span> </span><span id="L-7"><a name="L-7"></a> <span class="p">{</span> </span><span id="L-8"><a name="L-8"></a> <span class="n">_weapon</span> <span class="p">=</span> <span class="n">weapon</span><span class="p">;</span> </span><span id="L-9"><a name="L-9"></a> <span class="p">}</span> </span><span id="L-10"><a name="L-10"></a> </span><span id="L-11"><a name="L-11"></a> <span class="k">public</span> <span class="k">void</span> <span class="nf">Attack</span><span class="p">(</span><span class="kt">string</span> <span class="n">target</span><span class="p">)</span> </span><span id="L-12"><a name="L-12"></a> <span class="p">{</span> </span><span id="L-13"><a name="L-13"></a> <span class="n">_weapon</span><span class="p">.</span><span class="n">Hit</span><span class="p">(</span><span class="n">target</span><span class="p">);</span> </span><span id="L-14"><a name="L-14"></a> <span class="p">}</span> </span><span id="L-15"><a name="L-15"></a><span class="p">}</span> </span><span id="L-16"><a name="L-16"></a> </span><span id="L-17"><a name="L-17"></a><span class="k">public</span> <span class="k">class</span> <span class="nc">Program</span> </span><span id="L-18"><a name="L-18"></a><span class="p">{</span> </span><span id="L-19"><a name="L-19"></a> <span class="k">static</span> <span class="k">void</span> <span class="nf">Main</span><span class="p">()</span> <span class="p">{</span> </span><span id="L-20"><a name="L-20"></a> <span class="n">Samurai</span> <span class="n">samurai</span> <span class="p">=</span> <span class="k">new</span> <span class="n">Samurai</span><span class="p">(</span><span class="k">new</span> <span class="n">Sword</span><span class="p">());</span> </span><span id="L-21"><a name="L-21"></a> <span class="n">samurai</span><span class="p">.</span><span class="n">Attack</span><span class="p">(</span><span class="s">&quot;bad programmers&quot;</span><span class="p">);</span> </span><span id="L-22"><a name="L-22"></a> <span class="n">Console</span><span class="p">.</span><span class="n">ReadLine</span><span class="p">();</span> </span><span id="L-23"><a name="L-23"></a> <span class="p">}</span> </span><span id="L-24"><a name="L-24"></a><span class="p">}</span> </span><span id="L-25"><a name="L-25"></a> </span><span id="L-26"><a name="L-26"></a><span class="c1">// Using Ninject</span> </span><span id="L-27"><a name="L-27"></a><span class="k">public</span> <span class="k">interface</span> <span class="n">IWarrior</span> </span><span id="L-28"><a name="L-28"></a><span class="p">{</span> </span><span id="L-29"><a name="L-29"></a> <span class="k">void</span> <span class="nf">Attack</span><span class="p">(</span><span class="kt">string</span> <span class="n">target</span><span class="p">);</span> </span><span id="L-30"><a name="L-30"></a><span class="p">}</span> </span><span id="L-31"><a name="L-31"></a> </span><span id="L-32"><a name="L-32"></a><span class="k">public</span> <span class="k">class</span> <span class="nc">Samurai</span> <span class="p">:</span> <span class="n">IWarrior</span> </span><span id="L-33"><a name="L-33"></a><span class="p">{</span> </span><span id="L-34"><a name="L-34"></a> <span class="k">private</span> <span class="k">readonly</span> <span class="n">IWeapon</span> <span class="n">_weapon</span><span class="p">;</span> </span><span id="L-35"><a name="L-35"></a> </span><span id="L-36"><a name="L-36"></a> <span class="k">public</span> <span class="nf">Samurai</span><span class="p">(</span><span class="n">IWeapon</span> <span class="n">weapon</span><span class="p">)</span> </span><span id="L-37"><a name="L-37"></a> <span class="p">{</span> </span><span id="L-38"><a name="L-38"></a> <span class="n">_weapon</span> <span class="p">=</span> <span class="n">weapon</span><span class="p">;</span> </span><span id="L-39"><a name="L-39"></a> <span class="p">}</span> </span><span id="L-40"><a name="L-40"></a> </span><span id="L-41"><a name="L-41"></a> <span class="k">public</span> <span class="k">void</span> <span class="nf">Attack</span><span class="p">(</span><span class="kt">string</span> <span class="n">target</span><span class="p">)</span> </span><span id="L-42"><a name="L-42"></a> <span class="p">{</span> </span><span id="L-43"><a name="L-43"></a> <span class="n">_weapon</span><span class="p">.</span><span class="n">Hit</span><span class="p">(</span><span class="n">target</span><span class="p">);</span> </span><span id="L-44"><a name="L-44"></a> <span class="p">}</span> </span><span id="L-45"><a name="L-45"></a><span class="p">}</span> </span><span id="L-46"><a name="L-46"></a> </span><span id="L-47"><a name="L-47"></a><span class="k">public</span> <span class="k">class</span> <span class="nc">Program</span> </span><span id="L-48"><a name="L-48"></a><span class="p">{</span> </span><span id="L-49"><a name="L-49"></a> <span class="k">static</span> <span class="k">void</span> <span class="nf">Main</span><span class="p">()</span> </span><span id="L-50"><a name="L-50"></a> <span class="p">{</span> </span><span id="L-51"><a name="L-51"></a> <span class="n">IKernel</span> <span class="n">kernel</span> <span class="p">=</span> <span class="k">new</span> <span class="n">StandardKernel</span><span class="p">();</span> </span><span id="L-52"><a name="L-52"></a> </span><span id="L-53"><a name="L-53"></a> <span class="n">kernel</span><span class="p">.</span><span class="n">Bind</span><span class="p">&lt;</span><span class="n">IWarrior</span><span class="p">&gt;().</span><span class="n">To</span><span class="p">&lt;</span><span class="n">Samurai</span><span class="p">&gt;();</span> </span><span id="L-54"><a name="L-54"></a> <span class="n">kernel</span><span class="p">.</span><span class="n">Bind</span><span class="p">&lt;</span><span class="n">IWeapon</span><span class="p">&gt;().</span><span class="n">To</span><span class="p">&lt;</span><span class="n">Sword</span><span class="p">&gt;();</span> </span><span id="L-55"><a name="L-55"></a> </span><span id="L-56"><a name="L-56"></a> <span class="n">IWarrior</span> <span class="n">samurai</span> <span class="p">=</span> <span class="n">kernel</span><span class="p">.</span><span class="n">Get</span><span class="p">&lt;</span><span class="n">IWarrior</span><span class="p">&gt;();</span> </span><span id="L-57"><a name="L-57"></a> </span><span id="L-58"><a name="L-58"></a> <span class="n">samurai</span><span class="p">.</span><span class="n">Attack</span><span class="p">(</span><span class="s">&quot;bad programmers&quot;</span><span class="p">);</span> </span><span id="L-59"><a name="L-59"></a> </span><span id="L-60"><a name="L-60"></a> <span class="n">Console</span><span class="p">.</span><span class="n">ReadLine</span><span class="p">();</span> </span><span id="L-61"><a name="L-61"></a> <span class="p">}</span> </span><span id="L-62"><a name="L-62"></a><span class="p">}</span> </span></pre></div> </td></tr></table>
c#, dependency-injection, ioc