public Pair<IndexMultiKey, EventTableAndNamePair> findTable(
Set<String> keyPropertyNames,
Set<String> rangePropertyNames,
List<IndexHintInstruction> optionalIndexHintInstructions) {
Pair<IndexMultiKey, EventTableIndexEntryBase> pair =
EventTableIndexUtil.findIndexBestAvailable(
tableIndexesRefCount,
keyPropertyNames,
rangePropertyNames,
optionalIndexHintInstructions);
if (pair == null) {
return null;
}
EventTable tableFound = ((EventTableIndexRepositoryEntry) pair.getSecond()).getTable();
return new Pair<IndexMultiKey, EventTableAndNamePair>(
pair.getFirst(),
new EventTableAndNamePair(tableFound, pair.getSecond().getOptionalIndexName()));
}
public void validateAddExplicitIndex(
boolean unique,
String indexName,
List<CreateIndexItem> columns,
EventType eventType,
Iterable<EventBean> dataWindowContents)
throws ExprValidationException {
if (explicitIndexes.containsKey(indexName)) {
throw new ExprValidationException("Index by name '" + indexName + "' already exists");
}
EventTableCreateIndexDesc desc =
EventTableIndexUtil.validateCompileExplicitIndex(unique, columns, eventType);
Pair<IndexMultiKey, EventTableAndNamePair> pair =
addExplicitIndexOrReuse(
unique,
desc.getHashProps(),
desc.getBtreeProps(),
dataWindowContents,
eventType,
indexName);
explicitIndexes.put(indexName, pair.getSecond().getEventTable());
}
public Pair<IndexMultiKey, EventTableAndNamePair> addExplicitIndexOrReuse(
boolean unique,
List<IndexedPropDesc> hashProps,
List<IndexedPropDesc> btreeProps,
Iterable<EventBean> prefilledEvents,
EventType indexedType,
String indexName) {
if (hashProps.isEmpty() && btreeProps.isEmpty()) {
throw new IllegalArgumentException("Invalid zero element list for hash and btree columns");
}
// Get an existing table, if any, matching the exact requirement
IndexMultiKey indexPropKeyMatch =
EventTableIndexUtil.findExactMatchNameAndType(
tableIndexesRefCount.keySet(), unique, hashProps, btreeProps);
if (indexPropKeyMatch != null) {
EventTableIndexRepositoryEntry refTablePair = tableIndexesRefCount.get(indexPropKeyMatch);
return new Pair<IndexMultiKey, EventTableAndNamePair>(
indexPropKeyMatch,
new EventTableAndNamePair(refTablePair.getTable(), refTablePair.getOptionalIndexName()));
}
return addIndex(unique, hashProps, btreeProps, prefilledEvents, indexedType, indexName, false);
}
