/// <summary>
/// Creates a new collection for database objects
/// </summary>
/// <param name="dataset"></param>
public DatabaseObjectCollection(DatasetBase dataset)
: base(SchemaManager.Comparer)
{
InitializeMembers();
this.dataset = dataset;
}
/// <summary>
/// Creates a new database object with its full name initialized
/// </summary>
/// <param name="dataset"></param>
/// <param name="databaseName"></param>
/// <param name="schemaName"></param>
/// <param name="objectName"></param>
protected DatabaseObject(DatasetBase dataset, string databaseName, string schemaName, string objectName)
{
InitializeMembers(new StreamingContext());
this.dataset = dataset;
this.databaseName = databaseName;
this.schemaName = schemaName;
this.objectName = objectName;
}
protected override void OnDatasetAdded(string datasetName, DatasetBase ds)
{
// If a Graywulf dataset is added, it has to be updated and registry
// objects loaded
if (ds is GraywulfDataset)
{
var gwds = (GraywulfDataset)ds;
gwds.Context = Context;
}
}
/// <summary>
/// Copies member variable from an existing object
/// </summary>
/// <param name="old"></param>
private void CopyMembers(DatabaseObject old)
{
this.cachedVersion = DateTime.Now.Ticks;
this.objectType = old.objectType;
this.dataset = old.dataset;
this.databaseName = old.databaseName;
this.schemaName = old.schemaName;
this.objectName = old.objectName;
this.metadata = new LazyProperty <DatabaseObjectMetadata>(LoadMetadata);
}
private void InitializeMembers(StreamingContext context)
{
this.cachedVersion = DateTime.Now.Ticks;
this.objectType = DatabaseObjectType.Unknown;
this.dataset = null;
this.databaseName = null;
this.schemaName = null;
this.objectName = null;
this.metadata = new LazyProperty <DatabaseObjectMetadata>(LoadMetadata);
}
/// <summary>
/// Copies member variables
/// </summary>
/// <param name="old"></param>
private void CopyMembers(DatasetBase old)
{
this.cachedVersion = DateTime.Now.Ticks;
this.isCacheable = old.isCacheable;
this.name = old.name;
this.defaultSchemaName = old.defaultSchemaName;
this.connectionString = old.connectionString;
// No deep copy here
this.tables = new DatabaseObjectCollection <Table>(this);
this.views = new DatabaseObjectCollection <View>(this);
this.tableValuedFunctions = new DatabaseObjectCollection <TableValuedFunction>(this);
this.scalarFunctions = new DatabaseObjectCollection <ScalarFunction>(this);
this.storedProcedures = new DatabaseObjectCollection <StoredProcedure>(this);
this.statistics = new LazyProperty <DatasetStatistics>(LoadDatasetStatistics);
this.metadata = new LazyProperty <DatasetMetadata>(LoadDatasetMetadata);
InitializeEventHandlers();
}
public GraywulfDataset(DatasetBase old)
: base(old)
{
InitializeMembers(new StreamingContext());
}
/// <summary>
/// Creates a view and initializes its dataset
/// </summary>
/// <param name="dataset"></param>
public View(DatasetBase dataset)
: base(dataset)
{
InitializeMembers();
}
/// <summary>
/// Creates a table or view and initializes its dataset
/// </summary>
/// <param name="dataset"></param>
public TableOrView(DatasetBase dataset)
: base(dataset)
{
InitializeMembers(new StreamingContext());
}
protected virtual void OnDatasetAdded(string datasetName, DatasetBase ds)
{
}
/// <summary>
/// Creates a new database object with dataset set.
/// </summary>
/// <param name="dataset"></param>
public DatabaseObject(DatasetBase dataset)
{
InitializeMembers(new StreamingContext());
this.dataset = dataset;
}
/// <summary>
/// Creates a stored procedure function and initializes its dataset
/// </summary>
/// <param name="dataset"></param>
public StoredProcedure(DatasetBase dataset)
: base(dataset)
{
InitializeMembers(new StreamingContext());
}
/// <summary>
/// Initializes member variable to their default values.
/// </summary>
private void InitializeMembers()
{
this.dataset = null;
this.isAllLoaded = false;
}
/// <summary>
/// Creates a table-valued function and initializes its dataset
/// </summary>
/// <param name="dataset"></param>
public TableValuedFunction(DatasetBase dataset)
: base(dataset)
{
InitializeMembers(new StreamingContext());
}
/// <summary>
/// Creates a scalar function and initializes its
/// dataset
/// </summary>
/// <param name="dataset"></param>
public ScalarFunction(DatasetBase dataset)
: base(dataset)
{
InitializeMembers(new StreamingContext());
}
/// <summary>
/// Creates a table and initializes its dataset
/// </summary>
/// <param name="dataset"></param>
public Table(DatasetBase dataset)
: base(dataset)
{
InitializeMembers();
}
/// <summary>
/// Creates a copy of the dataset object
/// </summary>
/// <param name="old"></param>
protected DatasetBase(DatasetBase old)
{
CopyMembers(old);
}