public TableUpdateStrategyIndexNonUnique(
EventBeanUpdateHelperNoCopy updateHelper,
ISet<string> affectedIndexNames)
{
this.updateHelper = updateHelper;
this.affectedIndexNames = affectedIndexNames;
}
public TableUpdateStrategyWUniqueConstraint(
EventBeanUpdateHelperNoCopy updateHelper,
ISet<string> affectedIndexNames)
{
_updateHelper = updateHelper;
_affectedIndexNames = affectedIndexNames;
}
public InfraOnMergeActionUpd(
ExprEvaluator optionalFilter,
EventBeanUpdateHelperWCopy namedWindowUpdate)
: base(
optionalFilter)
{
this.namedWindowUpdate = namedWindowUpdate;
tableUpdate = null;
}
public InfraOnMergeActionUpd(
ExprEvaluator optionalFilter,
EventBeanUpdateHelperNoCopy tableUpdate,
Table table)
: base(optionalFilter)
{
this.tableUpdate = tableUpdate;
namedWindowUpdate = null;
this.table = table;
InitTableUpdateStrategy(table);
}
public InfraOnUpdateViewFactory(
EventType infraEventType,
EventBeanUpdateHelperWCopy updateHelperNamedWindow,
EventBeanUpdateHelperNoCopy updateHelperTable,
Table table,
StatementContext statementContext)
: base(
infraEventType)
{
UpdateHelperNamedWindow = updateHelperNamedWindow;
UpdateHelperTable = updateHelperTable;
this.table = table;
if (table != null) {
InitTableUpdateStrategy(table);
table.AddUpdateStrategyCallback(this);
statementContext.AddFinalizeCallback(
new ProxyStatementFinalizeCallback {
ProcStatementDestroyed = context => { this.table.RemoveUpdateStrategyCallback(this); }
});
}
}
public static TableUpdateStrategy ValidateGetTableUpdateStrategy(
TableMetaData tableMetadata,
EventBeanUpdateHelperNoCopy updateHelper,
bool isOnMerge)
{
var desc = GetAffectedIndexes(tableMetadata, updateHelper.UpdatedProperties);
// with affected indexes and with uniqueness : careful updates, may need to rollback
if (desc.AffectedIndexNames != null && desc.IsUniqueIndexUpdated) {
if (isOnMerge) {
throw new ExprValidationException("On-merge statements may not update unique keys of tables");
}
return new TableUpdateStrategyWUniqueConstraint(updateHelper, desc.AffectedIndexNames);
}
// with affected indexes and without uniqueness : update indexes without unique key violation and rollback
if (desc.AffectedIndexNames != null) {
return new TableUpdateStrategyIndexNonUnique(updateHelper, desc.AffectedIndexNames);
}
// no affected indexes, the fasted means of updating
return new TableUpdateStrategyNonIndex(updateHelper);
}
public TableUpdateStrategyNonIndex(EventBeanUpdateHelperNoCopy updateHelper)
{
this.updateHelper = updateHelper;
}
