private TableSchema LoadTableSchema(string tableName)
{
IDatabaseSchemaLoader schemaLoader = GetSchemaLoader();
TableSchema tableSchema = schemaLoader.LoadTableSchema(Connection, tableName);
return(tableSchema
?? throw new InvalidOperationException($"Could not get schema for table [{tableName}]. Table does not exists."));
}
private TableSchema LoadTableSchema(string tableName)
{
IDatabaseSchemaLoader schemaLoader = GetSchemaLoader();
TableSchema tableSchema = schemaLoader.LoadTableSchema(Connection, tableName);
return(tableSchema
?? throw new InvalidOperationException(string.Format(Resources.QueryProviderCouldNotGetTableSchema, tableName)));
}
/// <inheritdoc cref="IDatabaseSchemaLoader{T}.LoadTableSchema(T, string)"/>
/// <exception cref="ArgumentNullException">Value of any parameter is <see langword="null"/>.</exception>
/// <exception cref="ArgumentException">
/// <list type="bullet">
/// <item>Loader for connection type specified by <paramref name="connection"/> does not exist.</item>
/// <item>Value of <paramref name="tableName"/> is empty string, or string containing only whitespace characters.</item>
/// </list>
/// </exception>
public TableSchema LoadTableSchema(object connection, string tableName)
{
Check.NotNullOrWhiteSpace(tableName, nameof(tableName));
IDatabaseSchemaLoader loader = CheckConnectionAndGetLoader(connection);
return(loader.LoadTableSchema(connection, tableName));
}
private IDatabaseSchemaLoader CheckConnectionAndGetLoader(object connection)
{
Check.NotNull(connection, nameof(connection));
IDatabaseSchemaLoader loader = GetLoader(connection);
if (loader == null)
{
throw new ArgumentException(Resources.DatabaseSchemaLoader_UnsupportedConnectionType, nameof(connection));
}
return(loader);
}
private IDatabaseSchemaLoader CheckConnectionAndGetLoader(object connection)
{
Check.NotNull(connection, nameof(connection));
IDatabaseSchemaLoader loader = GetLoader(connection);
if (loader == null)
{
throw new ArgumentException(
string.Format(Resources.UnsupportedConnectionType, connection.GetType().FullName), nameof(connection));
}
return(loader);
}
/// <summary>
/// Removes <paramref name="loader"/> from the list of loaders.
/// </summary>
/// <param name="loader">Specific database schema loader to be removed from the list.</param>
public void RemoveSchemaLoader(IDatabaseSchemaLoader loader)
{
_loaders.Remove(loader);
}
/// <summary>
/// Adds <paramref name="loader"/> to the list of loaders.
/// </summary>
/// <param name="loader">Specific database schema loader.</param>
/// <exception cref="ArgumentNullException">Value of <paramref name="loader"/> is <see langword="null"/>.</exception>
public void AddSchemaLoader(IDatabaseSchemaLoader loader)
{
Check.NotNull(loader, nameof(loader));
_loaders.Add(loader);
}
/// <inheritdoc cref="IDatabaseSchemaLoader{T}.LoadSchema(T)"/>
/// <exception cref="ArgumentNullException">Value of <paramref name="connection"/> is <see langword="null"/>.</exception>
/// <exception cref="ArgumentException">
/// Loader for connection type specified by <paramref name="connection"/> does not exist.
/// </exception>
public DatabaseSchema LoadSchema(object connection)
{
IDatabaseSchemaLoader loader = CheckConnectionAndGetLoader(connection);
return(loader.LoadSchema(connection));
}
public LoaderInfo(IDatabaseSchemaLoader loader, ISchemaCacheKeyGenerator keyGenerator)
{
Loader = loader;
KeyGenerator = keyGenerator;
}
/// <summary>
/// Vymaže zadaný <paramref name="loader"/> databázovej schémy.
/// </summary>
/// <param name="loader">Loader databázovej schémy, ktorý sa má vymazať.</param>
public void RemoveSchemaLoader(IDatabaseSchemaLoader loader)
{
_loaders.Remove(_loaders.FirstOrDefault((linfo) => linfo.Loader == loader));
}
/// <summary>
/// Pridá do keše <paramref name="loader"/> na načítavanie schémy databázy, spolu s generátorom kľúčov pre načítanú
/// shému <paramref name="keyGenerator"/>.
/// </summary>
/// <param name="loader">Loader pre načítavanie schémy databázy.</param>
/// <param name="keyGenerator">Generátor kľúča pre schému databázy. Databáza sa interne drží v keši pod vygenerovaným
/// kľúčom.</param>
/// <exception cref="ArgumentNullException">Hodnota <paramref name="loader"/> alebo <paramref name="keyGenerator"/>
/// je <c>null</c>.</exception>
public void AddSchemaLoader(IDatabaseSchemaLoader loader, ISchemaCacheKeyGenerator keyGenerator)
{
Check.NotNull(loader, nameof(loader));
Check.NotNull(keyGenerator, nameof(keyGenerator));
_loaders.Add(new LoaderInfo(loader, keyGenerator));
}