Serialization of Exceptions

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VistaDB supports the ability to serialize VistaDB exceptions.

There is a sample application included (called SerializeExceptions) that demonstrates how to do this from code.

To serialize an exception using a SOAP formatter looks like this:

Serializing a VistaDB Exception for SOAP	Copy Code
VistaDBException deserializedExceptionSoap; // This FileStream is used for the serialization as a SOAP object // You can open this soap file and read it as an XML document using (FileStream streamSOAP = new FileStream("NewException.soap", FileMode.Create)) { // Serialize the exception to the soap file SoapFormatter formatterSOAP = new SoapFormatter(null, new StreamingContext(StreamingContextStates.File)); formatterSOAP.Serialize(streamSOAP, ex); // Rewind the streamSOAP and deserialize the exception. streamSOAP.Position = 0; deserializedExceptionSoap = (VistaDBException)formatterSOAP.Deserialize(streamSOAP); } // Throw the deserialized exception again. throw deserializedExceptionSoap;

Serializing a VistaDB Exception for SOAP

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VistaDBException deserializedExceptionSoap;

// This FileStream is used for the serialization as a SOAP object // You can open this soap file and read it as an XML document
using (FileStream streamSOAP = new FileStream("NewException.soap", FileMode.Create))
{
    // Serialize the exception to the soap file
    SoapFormatter formatterSOAP = new SoapFormatter(null, new StreamingContext(StreamingContextStates.File));
    formatterSOAP.Serialize(streamSOAP, ex);
    // Rewind the streamSOAP and deserialize the exception.
    streamSOAP.Position = 0;
    deserializedExceptionSoap = (VistaDBException)formatterSOAP.Deserialize(streamSOAP);
}
// Throw the deserialized exception again.
throw deserializedExceptionSoap;

Same example using a BinaryFormatter to put the data to disk.

Serializing a VistaDB Exception for Disk	Copy Code
VistaDBException deserializedExceptionSoap; // Do the same thing with a binary formatter using (FileStream streamBinary = new FileStream("NewException.bin", FileMode.Create)) { BinaryFormatter formatBinary = new BinaryFormatter(null, new StreamingContext(StreamingContextStates.File)); formatBinary.Serialize(streamBinary, ex); streamBinary.Position = 0; VistaDBException deserializedExceptionBinary = (VistaDBException)formatBinary.Deserialize(streamBinary); Console.WriteLine("Serialized the exception, and then deserialized the resulting stream into a new VistaDBException. "); } // Throw the deserialized exception again. throw deserializedExceptionBinary;

Serializing a VistaDB Exception for Disk

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VistaDBException deserializedExceptionSoap;
// Do the same thing with a binary formatter
using (FileStream streamBinary = new FileStream("NewException.bin", FileMode.Create))
{
    BinaryFormatter formatBinary = new BinaryFormatter(null, new StreamingContext(StreamingContextStates.File));
    formatBinary.Serialize(streamBinary, ex);
    streamBinary.Position = 0;
    VistaDBException deserializedExceptionBinary = (VistaDBException)formatBinary.Deserialize(streamBinary);

    Console.WriteLine("Serialized the exception, and then deserialized the resulting stream into a new VistaDBException. ");
}

// Throw the deserialized exception again.
throw deserializedExceptionBinary;