@Override
public long deleteByQuery(Query<K, T> query) {
try {
long deletedRows = 0;
Result<K, T> result = query.execute();
while (result.next()) {
if (delete(result.getKey())) deletedRows++;
}
return 0;
} catch (Exception e) {
return 0;
}
}
private void readFlushed(Configuration conf) throws Exception {
DataStore<Utf8, Flushed> flushedTable =
DataStoreFactory.getDataStore(Utf8.class, Flushed.class, conf);
Query<Utf8, Flushed> query = flushedTable.newQuery();
Result<Utf8, Flushed> result = flushedTable.execute(query);
ArrayList<String> flushedEntries = new ArrayList<String>();
while (result.next()) {
flushedEntries.add(result.getKey() + ":" + result.get().getCount());
}
conf.setStrings("goraci.verify.flushed", flushedEntries.toArray(new String[] {}));
flushedTable.close();
}
@Override
public long deleteByQuery(Query<K, T> query) {
try {
long deletedRows = 0;
Result<K, T> result = query.execute();
String[] fields = getFieldsToQuery(query.getFields());
boolean isAllFields = Arrays.equals(fields, getFields());
while (result.next()) {
if (isAllFields) {
if (delete(result.getKey())) {
deletedRows++;
}
} else {
ArrayList<String> excludedFields = new ArrayList<>();
for (String field : getFields()) {
if (!Arrays.asList(fields).contains(field)) {
excludedFields.add(field);
}
}
T newClonedObj =
getPersistent(
result.get(), excludedFields.toArray(new String[excludedFields.size()]));
if (delete(result.getKey())) {
put(result.getKey(), newClonedObj);
deletedRows++;
}
}
}
LOG.info("JCache Gora datastore deleled {} rows from Persistent datastore.", deletedRows);
return deletedRows;
} catch (Exception e) {
LOG.error(
"Exception occurred while deleting entries from JCache Gora datastore. Hence returning 0.",
e);
return 0;
}
}