关系数据库元数据处理类(二) 定义查询元数据接口 

 1 /// <summary>
 2     /// 数据库元数据处理
 3     /// </summary>
 4     public interface IMetadata
 5     {
 6         #region DataBase
 7         /// <summary>
 8         /// 获取单个数据库对象
 9         /// </summary>
10         /// <param name="specification"></param>
11         /// <returns></returns>
12         Database GetDatabase(ISpecification<Database> specification);
13 
14         /// <summary>
15         /// 获取所有数据库对象
16         /// </summary>
17         /// <returns></returns>
18         List<Database> GetAllDatabase();
19 
20         /// <summary>
21         /// 根据规则查询数据库对象
22         /// </summary>
23         /// <returns></returns>
24         List<Database> FinDatabases(ISpecification<Database> specification);
25 
26         #endregion
27 
28         #region Table
29 
30         /// <summary>
31         /// 根据规则查询表对象
32         /// </summary>
33         /// <param name="specification"></param>
34         /// <returns></returns>
35         Table GeTable(ISpecification<Table> specification);
36 
37         /// <summary>
38         /// 获取所有数据库
39         /// </summary>      
40         /// <returns></returns>
41         List<Table> GetAllTable();
42 
43         /// <summary>
44         /// 根据规则查询表对象
45         /// </summary>
46         /// <param name="specification"></param>
47         /// <returns></returns>
48         List<Table> FindTables(ISpecification<Table> specification);
49 
50         #endregion
51 
52         #region Column
53 
54         /// <summary>
55         /// 根据规则，获取字段对象
56         /// </summary>
57         /// <param name="specification"></param>
58         /// <returns></returns>
59         Column GetColumn(ISpecification<Column> specification);
60 
61         /// <summary>
62         /// 获取字段对象
63         /// </summary>
64         /// <returns></returns>
65         List<Column> GetAllColumns();
66 
67         /// <summary>
68         /// 根据规则，查询所有字段对象
69         /// </summary>
70         /// <param name="specification"></param>
71         /// <returns></returns>
72         List<Column> FindColumns(ISpecification<Column> specification);
73 
74         #endregion
75 
76         #region Relation
77 
78         /// <summary>
79         /// 获取外键关系
80         /// </summary>
81         /// <returns></returns>
82         List<Relation> GetAllRelation();
83 
84         /// <summary>
85         /// 根据规则，获取外键关系
86         /// </summary>
87         /// <param name="specification"></param>
88         /// <returns></returns>
89         Relation GeRelation(ISpecification<Relation> specification);
90 
91         /// <summary>
92         /// 获取表的所有主外键关系
93         /// </summary>
94         /// <param name="specification"></param>
95         /// <returns></returns>
96         List<Relation> FindRelations(ISpecification<Relation> specification);
97 
98         #endregion
99     }

 

posted @ 2014-04-07 11:24  OneWork  阅读(303)  评论(0)    收藏  举报