关于SQL语句的自动生成!(二)
2008-04-02 09:20 $等待$ 阅读(137) 评论(0) 编辑 收藏 举报
基类实现接口,通过基类的实现,从而有效的实现的代码屏蔽。
private abstract class BaseClause : IClause
{
private string m_strTable = string.Empty;
private Where m_oWhere = new Where();
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protected BaseClause()
{
this.m_strTable = string.Empty;
this.Clear();
}
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public virtual void Add(string name, object val)
{
}
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public void AddWhere(string name, object val)
{
this.m_oWhere.Add(name, val);
}
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public void Clear()
{
this.m_oWhere.Clear();
this.auxClear();
}
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public string TableName
{
set { this.m_strTable = value; }
protected get { return this.m_strTable; }
}
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public sealed override string ToString()
{
return this.ToStr + this.m_oWhere.ToString();
}
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protected abstract string ToStr { get;}
protected virtual void auxClear() { }
}
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