/**
* Cancels the running query.
*
* @return <code>true</code> if and only if there is a running query and it has been canceled.
* @throws JRException
*/
public synchronized boolean cancelRunningQuery() throws JRException {
if (queryExecuter != null) {
return queryExecuter.cancelQuery();
}
return false;
}
protected void closeDatasource() {
if (queryExecuter != null) {
if (log.isDebugEnabled()) {
log.debug("Fill " + filler.fillerId + ": closing query executer");
}
queryExecuter.close();
queryExecuter = null;
}
reset();
}
/**
* Creates the data source from a connection.
*
* @return the data source to be used
* @throws JRException
*/
private JRDataSource createQueryDatasource() throws JRException {
if (query == null) {
return null;
}
try {
if (log.isDebugEnabled()) {
log.debug(
"Fill " + filler.fillerId + ": Creating " + query.getLanguage() + " query executer");
}
JRQueryExecuterFactory queryExecuterFactory =
JRQueryExecuterUtils.getQueryExecuterFactory(query.getLanguage());
queryExecuter = queryExecuterFactory.createQueryExecuter(parent, parametersMap);
filler.fillContext.setRunningQueryExecuter(queryExecuter);
return queryExecuter.createDatasource();
} finally {
filler.fillContext.clearRunningQueryExecuter();
}
}
