/**
* Ctor.
*
* @param revisionEventTypeName name
* @param spec specification
* @param statementStopService for stop handling
* @param eventAdapterService for nested property handling
*/
public VAERevisionProcessorDeclared(
String revisionEventTypeName,
RevisionSpec spec,
StatementStopService statementStopService,
EventAdapterService eventAdapterService,
EventTypeIdGenerator eventTypeIdGenerator) {
super(spec, revisionEventTypeName, eventAdapterService);
// on statement stop, remove versions
statementStopService.addSubscriber(
new StatementStopCallback() {
public void statementStopped() {
statePerKey.clear();
}
});
this.statePerKey = new HashMap<MultiKeyUntyped, RevisionStateDeclared>();
this.baseEventType = spec.getBaseEventType();
this.fullKeyGetters = PropertyUtility.getGetters(baseEventType, spec.getKeyPropertyNames());
// sort non-key properties, removing keys
groups =
PropertyUtility.analyzeGroups(
spec.getChangesetPropertyNames(), spec.getDeltaTypes(), spec.getDeltaNames());
Map<String, RevisionPropertyTypeDesc> propertyDesc = createPropertyDescriptors(spec, groups);
typeDescriptors =
PropertyUtility.getPerType(
groups, spec.getChangesetPropertyNames(), spec.getKeyPropertyNames());
EventTypeMetadata metadata =
EventTypeMetadata.createValueAdd(
revisionEventTypeName, EventTypeMetadata.TypeClass.REVISION);
revisionEventType =
new RevisionEventType(
metadata,
eventTypeIdGenerator.getTypeId(revisionEventTypeName),
propertyDesc,
eventAdapterService);
}
private TableOnMergeActionIns setupInsert(
TableMetadata tableMetadata,
InternalEventRouter internalEventRouter,
int selectClauseNumber,
OnTriggerMergeActionInsert desc,
EventType triggeringEventType,
String triggeringStreamName,
StatementContext statementContext)
throws ExprValidationException {
// Compile insert-into info
String streamName =
desc.getOptionalStreamName() != null
? desc.getOptionalStreamName()
: tableMetadata.getTableName();
InsertIntoDesc insertIntoDesc = InsertIntoDesc.fromColumns(streamName, desc.getColumns());
EventType insertIntoTargetType =
streamName.equals(tableMetadata.getTableName())
? tableMetadata.getInternalEventType()
: null;
// rewrite any wildcards to use "stream.wildcard"
if (triggeringStreamName == null) {
triggeringStreamName = UuidGenerator.generate();
}
List<SelectClauseElementCompiled> selectNoWildcard =
NamedWindowOnMergeHelper.compileSelectNoWildcard(
triggeringStreamName, desc.getSelectClauseCompiled());
// Set up event types for select-clause evaluation: The first type does not contain anything as
// its the named window row which is not present for insert
EventType dummyTypeNoProperties =
new MapEventType(
EventTypeMetadata.createAnonymous("merge_named_window_insert"),
"merge_named_window_insert",
0,
null,
Collections.<String, Object>emptyMap(),
null,
null,
null);
EventType[] eventTypes = new EventType[] {dummyTypeNoProperties, triggeringEventType};
String[] streamNames = new String[] {UuidGenerator.generate(), triggeringStreamName};
StreamTypeService streamTypeService =
new StreamTypeServiceImpl(
eventTypes, streamNames, new boolean[1], statementContext.getEngineURI(), false);
// Get select expr processor
SelectExprEventTypeRegistry selectExprEventTypeRegistry =
new SelectExprEventTypeRegistry(
statementContext.getStatementName(), statementContext.getStatementEventTypeRef());
ExprEvaluatorContextStatement exprEvaluatorContext =
new ExprEvaluatorContextStatement(statementContext, false);
SelectExprProcessor insertHelper =
SelectExprProcessorFactory.getProcessor(
Collections.singleton(selectClauseNumber),
selectNoWildcard.toArray(new SelectClauseElementCompiled[selectNoWildcard.size()]),
false,
insertIntoDesc,
insertIntoTargetType,
null,
streamTypeService,
statementContext.getEventAdapterService(),
statementContext.getStatementResultService(),
statementContext.getValueAddEventService(),
selectExprEventTypeRegistry,
statementContext.getMethodResolutionService(),
exprEvaluatorContext,
statementContext.getVariableService(),
statementContext.getTableService(),
statementContext.getTimeProvider(),
statementContext.getEngineURI(),
statementContext.getStatementId(),
statementContext.getStatementName(),
statementContext.getAnnotations(),
statementContext.getContextDescriptor(),
statementContext.getConfigSnapshot(),
null,
statementContext.getNamedWindowService(),
null);
ExprEvaluator filterEval =
desc.getOptionalWhereClause() == null
? null
: desc.getOptionalWhereClause().getExprEvaluator();
InternalEventRouter routerToUser =
streamName.equals(tableMetadata.getTableName()) ? null : internalEventRouter;
boolean audit = AuditEnum.INSERT.getAudit(statementContext.getAnnotations()) != null;
return new TableOnMergeActionIns(
filterEval,
insertHelper,
routerToUser,
statementContext.getEpStatementHandle(),
statementContext.getInternalEventEngineRouteDest(),
audit,
tableMetadata.getRowFactory());
}