private static void VisitSubselectOnTrigger(
OnTriggerDesc onTriggerDesc,
ExprNodeSubselectDeclaredDotVisitor visitor)
{
if (onTriggerDesc is OnTriggerWindowUpdateDesc) {
OnTriggerWindowUpdateDesc updates = (OnTriggerWindowUpdateDesc) onTriggerDesc;
foreach (OnTriggerSetAssignment assignment in updates.Assignments) {
assignment.Expression.Accept(visitor);
}
}
else if (onTriggerDesc is OnTriggerSetDesc) {
OnTriggerSetDesc sets = (OnTriggerSetDesc) onTriggerDesc;
foreach (OnTriggerSetAssignment assignment in sets.Assignments) {
assignment.Expression.Accept(visitor);
}
}
else if (onTriggerDesc is OnTriggerSplitStreamDesc) {
OnTriggerSplitStreamDesc splits = (OnTriggerSplitStreamDesc) onTriggerDesc;
foreach (OnTriggerSplitStream split in splits.SplitStreams) {
split.WhereClause?.Accept(visitor);
if (split.SelectClause.SelectExprList != null) {
WalkSubselectSelectClause(split.SelectClause.SelectExprList, visitor);
}
}
}
else if (onTriggerDesc is OnTriggerMergeDesc) {
OnTriggerMergeDesc merge = (OnTriggerMergeDesc) onTriggerDesc;
foreach (OnTriggerMergeMatched matched in merge.Items) {
matched.OptionalMatchCond?.Accept(visitor);
foreach (OnTriggerMergeAction action in matched.Actions) {
action.OptionalWhereClause?.Accept(visitor);
if (action is OnTriggerMergeActionUpdate) {
OnTriggerMergeActionUpdate update = (OnTriggerMergeActionUpdate) action;
foreach (OnTriggerSetAssignment assignment in update.Assignments) {
assignment.Expression.Accept(visitor);
}
}
if (action is OnTriggerMergeActionInsert) {
OnTriggerMergeActionInsert insert = (OnTriggerMergeActionInsert) action;
WalkSubselectSelectClause(insert.SelectClause, visitor);
}
}
}
if (merge.OptionalInsertNoMatch != null) {
WalkSubselectSelectClause(merge.OptionalInsertNoMatch.SelectClause, visitor);
}
}
}
public static TableOnViewFactory Make(TableMetadata tableMetadata,
OnTriggerDesc onTriggerDesc,
EventType filterEventType,
string filterStreamName,
StatementContext statementContext,
StatementMetricHandle metricsHandle,
bool isDistinct,
InternalEventRouter internalEventRouter
)
{
if (onTriggerDesc.OnTriggerType == OnTriggerType.ON_DELETE)
{
return(new TableOnDeleteViewFactory(statementContext.StatementResultService, tableMetadata));
}
else if (onTriggerDesc.OnTriggerType == OnTriggerType.ON_SELECT)
{
EventBeanReader eventBeanReader = null;
if (isDistinct)
{
eventBeanReader = tableMetadata.InternalEventType.Reader;
}
OnTriggerWindowDesc windowDesc = (OnTriggerWindowDesc)onTriggerDesc;
return(new TableOnSelectViewFactory(tableMetadata, internalEventRouter, statementContext.EpStatementHandle,
eventBeanReader, isDistinct, statementContext.StatementResultService, statementContext.InternalEventEngineRouteDest, windowDesc.IsDeleteAndSelect));
}
else if (onTriggerDesc.OnTriggerType == OnTriggerType.ON_UPDATE)
{
OnTriggerWindowUpdateDesc updateDesc = (OnTriggerWindowUpdateDesc)onTriggerDesc;
EventBeanUpdateHelper updateHelper = EventBeanUpdateHelperFactory.Make(tableMetadata.TableName, (EventTypeSPI)tableMetadata.InternalEventType, updateDesc.Assignments, updateDesc.OptionalAsName, filterEventType, false, statementContext.StatementName, statementContext.EngineURI, statementContext.EventAdapterService);
TableUpdateStrategy updateStrategy = statementContext.TableService.GetTableUpdateStrategy(tableMetadata, updateHelper, false);
var onUpdateViewFactory = new TableOnUpdateViewFactory(statementContext.StatementResultService, tableMetadata, updateHelper, updateStrategy);
statementContext.TableService.AddTableUpdateStrategyReceiver(tableMetadata, statementContext.StatementName, onUpdateViewFactory, updateHelper, false);
return(onUpdateViewFactory);
}
else if (onTriggerDesc.OnTriggerType == OnTriggerType.ON_MERGE)
{
OnTriggerMergeDesc onMergeTriggerDesc = (OnTriggerMergeDesc)onTriggerDesc;
var onMergeHelper = new TableOnMergeHelper(statementContext, onMergeTriggerDesc, filterEventType, filterStreamName, internalEventRouter, tableMetadata);
return(new TableOnMergeViewFactory(tableMetadata, onMergeHelper, statementContext.StatementResultService, metricsHandle, statementContext.MetricReportingService));
}
else
{
throw new IllegalStateException("Unknown trigger type " + onTriggerDesc.OnTriggerType);
}
}
private static void VisitSubselectOnTrigger(OnTriggerDesc onTriggerDesc, ExprNodeSubselectDeclaredDotVisitor visitor)
{
if (onTriggerDesc is OnTriggerWindowUpdateDesc)
{
OnTriggerWindowUpdateDesc updates = (OnTriggerWindowUpdateDesc)onTriggerDesc;
foreach (OnTriggerSetAssignment assignment in updates.Assignments)
{
assignment.Expression.Accept(visitor);
}
}
else if (onTriggerDesc is OnTriggerSetDesc)
{
OnTriggerSetDesc sets = (OnTriggerSetDesc)onTriggerDesc;
foreach (OnTriggerSetAssignment assignment in sets.Assignments)
{
assignment.Expression.Accept(visitor);
}
}
else if (onTriggerDesc is OnTriggerSplitStreamDesc)
{
OnTriggerSplitStreamDesc splits = (OnTriggerSplitStreamDesc)onTriggerDesc;
foreach (OnTriggerSplitStream split in splits.SplitStreams)
{
if (split.WhereClause != null)
{
split.WhereClause.Accept(visitor);
}
if (split.SelectClause.SelectExprList != null)
{
foreach (SelectClauseElementRaw element in split.SelectClause.SelectExprList)
{
if (element is SelectClauseExprRawSpec)
{
SelectClauseExprRawSpec selectExpr = (SelectClauseExprRawSpec)element;
selectExpr.SelectExpression.Accept(visitor);
}
}
}
}
}
else if (onTriggerDesc is OnTriggerMergeDesc)
{
OnTriggerMergeDesc merge = (OnTriggerMergeDesc)onTriggerDesc;
foreach (OnTriggerMergeMatched matched in merge.Items)
{
if (matched.OptionalMatchCond != null)
{
matched.OptionalMatchCond.Accept(visitor);
}
foreach (OnTriggerMergeAction action in matched.Actions)
{
if (action.OptionalWhereClause != null)
{
action.OptionalWhereClause.Accept(visitor);
}
if (action is OnTriggerMergeActionUpdate)
{
OnTriggerMergeActionUpdate update = (OnTriggerMergeActionUpdate)action;
foreach (OnTriggerSetAssignment assignment in update.Assignments)
{
assignment.Expression.Accept(visitor);
}
}
if (action is OnTriggerMergeActionInsert)
{
OnTriggerMergeActionInsert insert = (OnTriggerMergeActionInsert)action;
foreach (SelectClauseElementRaw element in insert.SelectClause)
{
if (element is SelectClauseExprRawSpec)
{
SelectClauseExprRawSpec selectExpr = (SelectClauseExprRawSpec)element;
selectExpr.SelectExpression.Accept(visitor);
}
}
}
}
}
}
}
