1  public class MetadataManager : IMetadata 2     { 3         private readonly IMetadata _metadata; 4  5         public MetadataManager(IMetadata metadata) 6         { 7             _metadata = metadata;         8         } 9 10         public Database CurrentDatabase { get; set; }11 12         public Database GetDatabase(ISpecification
     
       specification)13         {14             return _metadata.GetDatabase(specification);15         }16 17         public List
      
        GetAllDatabase()18         {19             return _metadata.GetAllDatabase();20         }21 22         public List
       
         FinDatabases(ISpecification
        
          specification)23         {24             return _metadata.FinDatabases(specification);25         }26 27         public Table GeTable(ISpecification
         
           specification)28         {29             return _metadata.GeTable(specification);30         }31 32         public List
         
           GetAllTable()33         {34             return _metadata.GetAllTable();35         }36 37         public List
         
           FindTables(ISpecification
         
           specification)43         {44             return _metadata.GetColumn(specification);45         }46 47         public List
          
            GetAllColumns()48 {49 return _metadata.GetAllColumns();50 }51 52 public List
           
             FindColumns(ISpecification
            
              specification)53 {54 return _metadata.FindColumns(specification);55 }56 57 public List
             
               GetAllRelation()58 {59 return _metadata.GetAllRelation();60 }61 62 public Relation GeRelation(ISpecification
              
                specification)63 {64 return _metadata.GeRelation(specification);65 }66 67 public List
               
                 FindRelations(ISpecification
                
                  specification)68 {69 return _metadata.FindRelations(specification);70 }71 }
                
               
              
             
            
           
          
         
         
           specification)38         {39             return _metadata.FindTables(specification);40         }41 42         public Column GetColumn(ISpecification