OpenLink .NET Data Providers Class Implementation

This section details the classes exposed by the OpenLink .NET Data Providers, which users must be familiar with in order to make effective use of the providers.

Many of the OpenLink Generic Provider classes implement interfaces or inherit from the .NET Framework namespaces System.Data and System.Data.Common. A summary of the classes exposed by the provider is given below.

The table only shows classes or interfaces inherited from System.Data or System.Data.Common. Some of the OpenLink.Data.GenericClient classes implement additional interfaces or inherit from a class belonging to a namespace other than System.Data or System.Data.Common. These details are not shown. For full details refer to the detailed documentation for the appropriate class in OpenLink.Data.GenericClient Namespace.

Table: 4.4.1.

Classes Classes	Implements / inherits System.Data or System.Data.Common interface / class	Description
OPLCommand	IDbCommand	Represents an SQL statement or stored procedure to execute again st a database.
OPLCommandBuilder		Automatically generates single-table commands used to reconcile changes made to a DataSet? with the associated data source.
OPLConnection	IDbConnection	Represents an open connection to a data source.
OPLDataAdapter	IDbDataAdapter, DbDataAdapter	Represents a set of data commands and a database connection that are used to fill a DataSet? and update a data source.
OPLDataReader	IDataReader, IDataRecord	Provides a way of reading a forward-only stream of data rows from a data source.
OPLError		Holds information about a warning or error returned by a data source.
OPLErrorCollection		Represents a collection of one or more OPLError objects that give detailed information about an OPLException.
OPLErrorException		The exception that is generated when a warning or error is returned by a data source or the Generic Provider.
OPLParameter	IDbDataParameter, IDataParameter	Represents a parameter to an OPLCommand and optionally, its mapping to a DataSet? column.
OPLParameterCollection	IDataParameterCollection	Represents a collection of parameters relevant to an OPLCommand as well as their respective mappings to columns in a DataSet?.
OPLPermission?		Enables the Generic Provider to ensure that a user has a security level adequate to access a data source.
OPLPermissionAttribute?		Associates a security action with a custom security attribute.
OPLTransaction	IDbTransaction	Represents a SQL transaction to be made at a data source.

Table: 4.4.2. Delegates

Delegates	Description
OPLRowUpdatedEventHandler	Represents a method that will handle the RowUpdated event of an OPLDataAdapter.
OPLRowUpdatingEventHandler	Represents a method that will handle the RowUpdating event of an OPLDataAdapter.

Table: 4.4.3. Enumerations

Enumeration	Description
OPLDbType?	Specifies the data type of a field, property or OPLParameter.