关系数据库元数据处理类(三) 创建查询元数据代理类

 public class MetadataManager : IMetadata
    {
        private readonly IMetadata _metadata;

        public MetadataManager(IMetadata metadata)
        {
            _metadata = metadata;        
        }

        public Database CurrentDatabase { get; set; }

        public Database GetDatabase(ISpecification<Database> specification)
        {
            return _metadata.GetDatabase(specification);
        }

        public List<Database> GetAllDatabase()
        {
            return _metadata.GetAllDatabase();
        }

        public List<Database> FinDatabases(ISpecification<Database> specification)
        {
            return _metadata.FinDatabases(specification);
        }

        public Table GeTable(ISpecification<Table> specification)
        {
            return _metadata.GeTable(specification);
        }

        public List<Table> GetAllTable()
        {
            return _metadata.GetAllTable();
        }

        public List<Table> FindTables(ISpecification<Table> specification)
        {
            return _metadata.FindTables(specification);
        }

        public Column GetColumn(ISpecification<Column> specification)
        {
            return _metadata.GetColumn(specification);
        }

        public List<Column> GetAllColumns()
        {
            return _metadata.GetAllColumns();
        }

        public List<Column> FindColumns(ISpecification<Column> specification)
        {
            return _metadata.FindColumns(specification);
        }

        public List<Relation> GetAllRelation()
        {
            return _metadata.GetAllRelation();
        }

        public Relation GeRelation(ISpecification<Relation> specification)
        {
            return _metadata.GeRelation(specification);
        }

        public List<Relation> FindRelations(ISpecification<Relation> specification)
        {
            return _metadata.FindRelations(specification);
        }
    }