Zane Zhang created OPENJPA-2697:
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Summary: QueryCache doesn't work when use external cache storages
Key: OPENJPA-2697
URL: https://issues.apache.org/jira/browse/OPENJPA-2697
Project: OpenJPA
Issue Type: Bug
Components: datacache
Affects Versions: 2.4.2, 2.4.1, 2.4.0, 2.3.0, 2.2.2, 2.2.0
Reporter: Zane Zhang
When query object is de-serialized from external cache storage, it report error
when de-serialized QueryKey. Check following code in QueryKey (2.2.0). _query
is assumed to be String in readExternal(), but _query is not always String
object.
private static QueryKey createKey(QueryContext q, boolean packed,
Class<?> candidateClass, boolean subclasses, long startIdx, long
endIdx, Object parsed) {
...
key._query = q.getQueryString();
if (key._query == null) {
// this can be a criteria query
key._query = parsed;
}
}
public void readExternal(ObjectInput in)
throws IOException, ClassNotFoundException {
_candidateClassName = (String) in.readObject();
_subclasses = in.readBoolean();
_accessPathClassNames = (Set<String>) in.readObject();
_query = (String) in.readObject();
_ignoreChanges = in.readBoolean();
_params = (Map<Object,Object>) in.readObject();
_rangeStart = in.readLong();
_rangeEnd = in.readLong ();
_timeout = in.readInt ();
}
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