Example The following sample code demonstrates validation of the ConnectionManager name in the Validate and Execute methods, and shows how to use the AcquireConnection method to establish the physical connection in the Execute method. Old comments will not be carried over. This gives the user a way to select from among only those ConnectionManager objects of the appropriate type that are contained in the package.
For more information on the upcoming change, we invite you to read our blog post. At design time, a connection manager represents a logical connection, and describes key information such as the server name and any authentication properties.
If content within a comment thread is important to you, please save a copy. The method returns the underlying connection object that can then be used by the task. Success Catch exception As System.
Success Catch e As System.
At run time, tasks call the AcquireConnection method of the connection manager to establish the physical connection to the data source. Tasks use the collection in their package to find the connection manager that they will use during validation and execution. FireError 0, "SampleTask", exception.
Because a package can contain many tasks, each of which may have connections to different data sources, the package tracks all the connection managers in a collection, the Connections collection. The Connections collection is the first parameter to the Validate and Execute methods.
You can prevent the task from using the wrong connection manager by displaying the ConnectionManager objects from the collection to the user, by using a dialog box or drop-down list in the graphical user interface. Tasks call the AcquireConnection method to establish the physical connection to the data source.
FireError 0, "SampleTask", "Invalid connection manager. Because the connection manager isolates the implementation details of the underlying connection object from the task, the task only has to call the AcquireConnection method to establish the connection, and does not have to be concerned with other aspects of the connection.PHY Solved Problems from Cutnell & Johnson Ed 7 Compiled by A.P.
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