public void ValidateAddIndexAssignUpdateStrategies(string createIndexStatementName, IndexMultiKey imk, string indexName)
{
// add index - for now
_eventTableIndexMetadataRepo.AddIndex(false, imk, indexName, createIndexStatementName, true);
// validate strategies, rollback if required
foreach (var stmtEntry in _stmtNameToUpdateStrategyReceivers)
{
foreach (var strategyReceiver in stmtEntry.Value)
{
try {
TableUpdateStrategyFactory.ValidateGetTableUpdateStrategy(this, strategyReceiver.UpdateHelper, strategyReceiver.IsOnMerge);
}
catch (ExprValidationException ex) {
_eventTableIndexMetadataRepo.RemoveIndex(imk);
throw new ExprValidationException("Failed to validate statement '" + stmtEntry.Key + "' as a recipient of the proposed index: " + ex.Message);
}
}
}
// assign new strategies
foreach (var stmtEntry in _stmtNameToUpdateStrategyReceivers)
{
foreach (var strategyReceiver in stmtEntry.Value)
{
var strategy = TableUpdateStrategyFactory.ValidateGetTableUpdateStrategy(this, strategyReceiver.UpdateHelper, strategyReceiver.IsOnMerge);
strategyReceiver.Receiver.Update(strategy);
}
}
}
public void RemoveIndexReferencesStmtMayRemoveIndex(IndexMultiKey imk, string finalStatementName)
{
bool last = _eventTableIndexMetadataRepo.RemoveIndexReference(imk, finalStatementName);
if (last)
{
_eventTableIndexMetadataRepo.RemoveIndex(imk);
RemoveAllInstanceIndexes(imk);
}
}