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基于统一插件接口的WEB程序设计

王朝c#·作者佚名  2006-12-17
宽屏版  字体: |||超大  

由于前一阵子自学设计模式时看到了一些很不错的代码,但基于JAVA的代码居多,后来在微软的网站上下载了一个C#写的采用插件更新的软件(具体链接记不得了,以后会贴上的).所以自已就动了用插件开发WEB站点程序的念头,但是在网上进行搜索后没有找到相关的文章,我就闭门写了一些,发表在这里,希望大家多多指教.

本文基本上的设计结构是插件模式,对于每一个数据库表,都有一个插件相对应,但对方便起见,真是将其写成.CS的文件格式,并在WEBCONFIG配置文件中加以声明,如下就是全局接口文件[请原谅我的术语并不标准],

文件名:IPlugStarClub.cs

using System;

using System.Data;

using System.Data.OleDb;

namespace clubstar.IPlug

{

/// <summary>

/// IPlugStarClub 的摘要说明。

/// </summary>

public interface IPlugStarClub

{

string Name{get;} //所调用的PLUG的名字,如用户类或朋友类等

OleDbDataReader PerformSelect (IPlugSql sql);

void PerformDelete (IPlugSql sql);

void PerformInsert (IPlugSql sql);

void PerformUpdate (IPlugSql sql);

}

}

按接口的定义要求,下面是的IPlugSql文件

文件名:IPlugSql.cs

using System;

namespace clubstar.IPlug

{

/// <summary>

/// IPlugSql 的摘要说明。

/// </summary>

public interface IPlugSql

{

string SqlString{get;set;}

}

}

而如下的文件是在接口文件运行时的收集与操作类[我是这么认为]:[此处的代码就是前面所说的那个软件中的代码,我原版引用了

]

文件名:PluginCollection.cs

using System;

using System.Collections;

namespace clubstar.IPlug

{

//This class was generated using CodeSmith (http://www.ericjsmith.net/codesmith/)

/// <summary>

/// Represents a collection of <see cref="IPlugin">IPlugin</see> objects.

/// </summary>

public class PluginCollection: CollectionBase

{

/// <summary>

/// Initializes a new instance of the <see cref="PluginCollection">PluginCollection</see> class.

/// </summary>

public PluginCollection()

{

}

/// <summary>

/// Initializes a new instance of the <see cref="PluginCollection">PluginCollection</see> class containing the elements of the specified source collection.

/// </summary>

/// <param name="value">A <see cref="PluginCollection">PluginCollection</see> with which to initialize the collection.</param>

public PluginCollection(PluginCollection value)

{

this.AddRange(value);

}

/// <summary>

/// Initializes a new instance of the <see cref="PluginCollection">PluginCollection</see> class containing the specified array of <see cref="IPlugin">IPlugin</see> objects.

/// </summary>

/// <param name="value">An array of <see cref="IPlugin">IPlugin</see> objects with which to initialize the collection. </param>

public PluginCollection(IPlugStarClub[] value)

{

this.AddRange(value);

}

/// <summary>

/// Gets the <see cref="PluginCollection">PluginCollection</see> at the specified index in the collection.

/// <para>

/// In C#, this property is the indexer for the <see cref="PluginCollection">PluginCollection</see> class.

/// </para>

/// </summary>

public IPlugStarClub this[int index]

{

get {return ((IPlugStarClub)(this.List[index]));}

}

public int Add(IPlugStarClub value)

{

return this.List.Add(value);

}

/// <summary>

/// Copies the elements of the specified <see cref="IPlugin">IPlugin</see> array to the end of the collection.

/// </summary>

/// <param name="value">An array of type <see cref="IPlugin">IPlugin</see> containing the objects to add to the collection.</param>

public void AddRange(IPlugStarClub[] value)

{

for (int i = 0; (i < value.Length); i = (i + 1))

{

this.Add(value[i]);

}

}

/// <summary>

/// Adds the contents of another <see cref="PluginCollection">PluginCollection</see> to the end of the collection.

/// </summary>

/// <param name="value">A <see cref="PluginCollection">PluginCollection</see> containing the objects to add to the collection. </param>

public void AddRange(PluginCollection value)

{

for (int i = 0; (i < value.Count); i = (i + 1))

{

this.Add((IPlugStarClub)value.List[i]);

}

}

/// <summary>

/// Gets a value indicating whether the collection contains the specified <see cref="PluginCollection">PluginCollection</see>.

/// </summary>

/// <param name="value">The <see cref="PluginCollection">PluginCollection</see> to search for in the collection.</param>

/// <returns><b>true</b> if the collection contains the specified object; otherwise, <b>false</b>.</returns>

public bool Contains(IPlugStarClub value)

{

return this.List.Contains(value);

}

/// <summary>

/// Copies the collection objects to a one-dimensional <see cref="T:System.Array">Array</see> instance beginning at the specified index.

/// </summary>

/// <param name="array">The one-dimensional <see cref="T:System.Array">Array</see> that is the destination of the values copied from the collection.</param>

/// <param name="index">The index of the array at which to begin inserting.</param>

public void CopyTo(IPlugStarClub[] array, int index)

{

this.List.CopyTo(array, index);

}

/// <summary>

/// Creates a one-dimensional <see cref="T:System.Array">Array</see> instance containing the collection items.

/// </summary>

/// <returns>Array of type IPlugin</returns>

public IPlugStarClub[] ToArray()

{

IPlugStarClub[] array = new IPlugStarClub[this.Count];

this.CopyTo(array, 0);

return array;

}

/// <summary>

/// Gets the index in the collection of the specified <see cref="PluginCollection">PluginCollection</see>, if it exists in the collection.

/// </summary>

/// <param name="value">The <see cref="PluginCollection">PluginCollection</see> to locate in the collection.</param>

/// <returns>The index in the collection of the specified object, if found; otherwise, -1.</returns>

public int IndexOf(IPlugStarClub value)

{

return this.List.IndexOf(value);

}

public void Insert(int index, IPlugStarClub value)

{

List.Insert(index, value);

}

public void Remove(IPlugStarClub value)

{

List.Remove(value);

}

/// <summary>

/// Returns an enumerator that can iterate through the <see cref="PluginCollection">PluginCollection</see> instance.

/// </summary>

/// <returns>An <see cref="PluginCollectionEnumerator">PluginCollectionEnumerator</see> for the <see cref="PluginCollection">PluginCollection</see> instance.</returns>

public new PluginCollectionEnumerator GetEnumerator()

{

return new PluginCollectionEnumerator(this);

}

/// <summary>

/// Supports a simple iteration over a <see cref="PluginCollection">PluginCollection</see>.

/// </summary>

public class PluginCollectionEnumerator : IEnumerator

{

private IEnumerator _enumerator;

private IEnumerable _temp;

/// <summary>

/// Initializes a new instance of the <see cref="PluginCollectionEnumerator">PluginCollectionEnumerator</see> class referencing the specified <see cref="PluginCollection">PluginCollection</see> object.

/// </summary>

/// <param name="mappings">The <see cref="PluginCollection">PluginCollection</see> to enumerate.</param>

public PluginCollectionEnumerator(PluginCollection mappings)

{

_temp = ((IEnumerable)(mappings));

_enumerator = _temp.GetEnumerator();

}

/// <summary>

/// Gets the current element in the collection.

/// </summary>

public IPlugStarClub Current

{

get {return ((IPlugStarClub)(_enumerator.Current));}

}

object IEnumerator.Current

{

get {return _enumerator.Current;}

}

/// <summary>

/// Advances the enumerator to the next element of the collection.

/// </summary>

/// <returns><b>true</b> if the enumerator was successfully advanced to the next element; <b>false</b> if the enumerator has passed the end of the collection.</returns>

public bool MoveNext()

{

return _enumerator.MoveNext();

}

bool IEnumerator.MoveNext()

{

return _enumerator.MoveNext();

}

/// <summary>

/// Sets the enumerator to its initial position, which is before the first element in the collection.

/// </summary>

public void Reset()

{

_enumerator.Reset();

}

void IEnumerator.Reset()

{

_enumerator.Reset();

}

}

}

}

 
 
 
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