/// <summary>
/// Creates a new prevalence engine for the prevalent system
/// type specified by the systemType argument with the option
/// to automatically support the migration from older serialization
/// layout versions.
/// </summary>
/// <param name="systemType">prevalent system type, must be serializable</param>
/// <param name="prevalenceBase">directory where to store log files</param>
/// <param name="autoVersionMigration">include support for auto version migration</param>
/// <param name="handler">delegate to receive notifications about any exceptions during recovery</param>
/// <returns>a new prevalence engine</returns>
public static PrevalenceEngine CreateEngine(System.Type systemType, string prevalenceBase, bool autoVersionMigration, PrevalenceEngine.ExceptionDuringRecoveryHandler handler)
{
CheckEngineParameters(systemType, prevalenceBase);
BinaryFormatter formatter;
if (autoVersionMigration)
{
formatter = CreateAutoVersionMigrationFormatter(systemType);
}
else
{
formatter = CreateBinaryFormatter();
}
return(CreateRequestedEngine(systemType, prevalenceBase, formatter, handler));
}
/// <summary>
/// Creates a new prevalence engine for the prevalent system
/// type specified by the systemType argument.
/// </summary>
/// <param name="systemType">prevalent system type, must be serializable</param>
/// <param name="prevalenceBase">directory where to store log files</param>
/// <param name="formatter">serialization formatter that should be used for reading from/writing to the logs</param>
/// <param name="handler">delegate to receive notifications of any exceptions thrown during recovery</param>
/// <returns>a new prevalence engine</returns>
public static PrevalenceEngine CreateEngine(System.Type systemType, string prevalenceBase, BinaryFormatter formatter, PrevalenceEngine.ExceptionDuringRecoveryHandler handler)
{
CheckEngineParameters(systemType, prevalenceBase);
Assertion.AssertParameterNotNull("formatter", formatter);
return(CreateRequestedEngine(systemType, prevalenceBase, formatter, handler));
}
private static PrevalenceEngine CreateRequestedEngine(System.Type systemType, string prevalenceBase, BinaryFormatter formatter, PrevalenceEngine.ExceptionDuringRecoveryHandler handler)
{
if (Attribute.IsDefined(systemType, typeof(Bamboo.Prevalence.Attributes.TransparentPrevalenceAttribute), false))
{
return(new TransparentPrevalenceEngine(systemType, prevalenceBase, formatter, handler));
}
else
{
return(new PrevalenceEngine(systemType, prevalenceBase, formatter, handler));
}
}
public TransparentPrevalenceEngine(System.Type systemType, string prevalenceBase, BinaryFormatter formatter, PrevalenceEngine.ExceptionDuringRecoveryHandler handler) :
base(systemType, prevalenceBase, formatter, handler)
{
CreateProxy();
}
