可选组件功能vs SRP
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我目前遇到一个设计问题。
假设有一个组件层次结构。这些组件中的每一个都派生自抽象的
Component
public abstract class Component
{
public abstract Component Parent { get; }
public abstract ComponentCollection Children { get; }
}
public abstract class Component
{
// Other members
public abstract bool IsSearchable { get; }
public abstract bool Search(string searchTerm);
public abstract bool IsSelectable { get; }
public abstract bool Select();
}
public bool Search(Component component, string searchTerm)
{
ISearchable searchable = component as ISearchable;
if(searchable != null)
{
searchable.Search(searchTerm);
}
}
没有找到相关结果
已邀请:
3 个回复
捐焦
敦肌
谷靛
public interface IHasExtensions { List<Extension> Extensions { get; } void Extend (Extension ext); } public class Component : IHasExtensions { List<Extension> exts = new List<Extension> (); public List<Extension> Extensions { get { return exts; } } public void Extend (Extension ext) { exts.Add (ext); } void Draw() { } } public abstract class Extension { readonly protected Component _Component; public Extension(Component component) { _Component = component; } } public class SearchExtension : Extension { public SearchExtension (Component component) : base (component) { } } public class SelectionExtension : Extension { public SelectionExtension (Component component) : base (component) { } } public class test_fly { void start () { Component c = new Component (); c.Extend (new SearchExtension (c)); c.Extend (new SelectionExtension (c)); var exts = c.Extensions; // I Know the extensions now } }