/**
* Perform the query on the database, and prepare the array of returned DO objects.
*
* @exception DataObjectException If a database access error occurs.
* @exception NonUniqueQueryException If too many rows were found.
*/
private void runQuery() throws DataObjectException, NonUniqueQueryException {
needToRun = false;
arrayIndex = -1;
DBQuery dbQuery = null;
try {
Vector results;
/*
if ( cacheHits.size() > 0 ) {
// The setQuery methods build up the cacheHits.
// If the cache had our desired objects,
// we don't query the database, so we have no ResultSet.
results = cacheHits; // executeQuery saw cache hits
} else {
// If the cache doesn't exist, or could not handle the query,
// then we actually query the database.
dbQuery = Enhydra.getDatabaseManager().createQuery();
dbQuery.query( this ); // invokes executeQuery
results = new Vector();
while ( resultSet.next() ) {
results.addElement( new SoftwareCandidateDO ( resultSet ) );
}
}
*/
if (/* partialCache && */ 0 == cacheHits.size()) hitDb = true;
if (hitDb) {
dbQuery = Enhydra.getDatabaseManager().createQuery();
dbQuery.query(this); // invokes executeQuery
results = new Vector();
while (resultSet.next()) {
// results.addElement( new SoftwareCandidateDO ( resultSet ) );
results.addElement(SoftwareCandidateDO.createExisting(resultSet));
}
} else {
results = cacheHits; // executeQuery saw cache hits
}
if (results.size() > 1 && uniqueInstance)
throw new NonUniqueQueryException("Too many rows returned from database");
DOs = new SoftwareCandidateDO[results.size()];
for (int i = 0; i < results.size(); i++) {
DOs[i] = (SoftwareCandidateDO) results.elementAt(i);
}
arrayIndex = 0;
} catch (SQLException se) {
if (null == se.getSQLState()) {
throw new DataObjectException("Unknown SQLException", se);
}
if (se.getSQLState().startsWith("02") && se.getErrorCode() == 100) {
throw new DataObjectException("Update or delete DO is out of synch", se);
} else if (se.getSQLState().equals("S1000") && se.getErrorCode() == -268) {
throw new DataObjectException("Integrity constraint violation", se);
} else {
throw new DataObjectException("Data Object Error", se);
}
} catch (ObjectIdException oe) {
throw new DataObjectException("Object ID Error", oe);
} catch (DatabaseManagerException de) {
throw new DataObjectException("Database connection Error", de);
} finally {
if (null != dbQuery) dbQuery.release();
}
}