/// <summary>
/// Creates the event type fields.
/// </summary>
/// <param name="databaseStreamSpec">The database stream spec.</param>
/// <param name="columnTypeConversionHook">The column type conversion hook.</param>
/// <param name="queryMetaData">The query meta data.</param>
/// <returns></returns>
private static IDictionary<string, object> CreateEventTypeFields(
DBStatementStreamSpec databaseStreamSpec,
SQLColumnTypeConversion columnTypeConversionHook,
QueryMetaData queryMetaData)
{
IDictionary<string, object> eventTypeFields = new Dictionary<string, object>();
var columnNum = 1;
foreach (var entry in queryMetaData.OutputParameters) {
var name = entry.Key;
var dbOutputDesc = entry.Value;
Type clazz;
if (dbOutputDesc.OptionalBinding != null) {
clazz = dbOutputDesc.OptionalBinding.DataType;
}
else {
clazz = dbOutputDesc.DataType;
}
if (columnTypeConversionHook != null) {
var newValue = columnTypeConversionHook.GetColumnType(
new SQLColumnTypeContext(
databaseStreamSpec.DatabaseName,
databaseStreamSpec.SqlWithSubsParams,
name,
clazz,
dbOutputDesc.SqlType,
columnNum));
if (newValue != null) {
clazz = newValue;
}
}
eventTypeFields.Put(name, clazz);
columnNum++;
}
return eventTypeFields;
}
/// <summary>
/// Creates an event type from the query meta data.
/// </summary>
/// <param name="streamNum"></param>
/// <param name="queryMetaData">The query meta data.</param>
/// <param name="services"></param>
/// <param name="databaseStreamSpec">The database stream spec.</param>
/// <param name="columnTypeConversionHook">The column type conversion hook.</param>
/// <param name="outputRowConversionHook">The output row conversion hook.</param>
/// <param name="base"></param>
private static EventType CreateEventType(
int streamNum,
QueryMetaData queryMetaData,
StatementCompileTimeServices services,
DBStatementStreamSpec databaseStreamSpec,
SQLColumnTypeConversion columnTypeConversionHook,
SQLOutputRowConversion outputRowConversionHook,
StatementBaseInfo @base)
{
var eventTypeFields = CreateEventTypeFields(
databaseStreamSpec,
columnTypeConversionHook,
queryMetaData);
var eventTypeName = services.EventTypeNameGeneratorStatement.GetAnonymousDBHistorical(streamNum);
EventType eventType;
Func<EventTypeApplicationType, EventTypeMetadata> metadata = appType => new EventTypeMetadata(
eventTypeName,
@base.ModuleName,
EventTypeTypeClass.DBDERIVED,
appType,
NameAccessModifier.TRANSIENT,
EventTypeBusModifier.NONBUS,
false,
EventTypeIdPair.Unassigned());
if (outputRowConversionHook == null) {
eventType = BaseNestableEventUtil.MakeMapTypeCompileTime(
metadata.Invoke(EventTypeApplicationType.MAP),
eventTypeFields,
null,
null,
null,
null,
services.BeanEventTypeFactoryPrivate,
services.EventTypeCompileTimeResolver);
}
else {
var carrierClass = outputRowConversionHook.GetOutputRowType(
new SQLOutputRowTypeContext(
databaseStreamSpec.DatabaseName,
databaseStreamSpec.SqlWithSubsParams,
eventTypeFields));
if (carrierClass == null) {
throw new ExprValidationException("Output row conversion hook returned no type");
}
var stem = services.BeanEventTypeStemService.GetCreateStem(carrierClass, null);
eventType = new BeanEventType(
services.Container,
stem,
metadata.Invoke(EventTypeApplicationType.CLASS),
services.BeanEventTypeFactoryPrivate,
null,
null,
null,
null);
}
return eventType;
}
