private EntityResource() {
try {
if (log.isDebugEnabled()) log.debug("Loading EMF.");
DataSource ds = DataSourceUtil.lookupDatasource();
Map<String, Object> map = new HashMap<String, Object>();
map.put(TopLinkProperties.NON_JTA_DATASOURCE, ds);
emf = Persistence.createEntityManagerFactory("validations", map);
if (log.isDebugEnabled()) log.debug("EMF Loaded.");
} catch (Exception e) {
log.error("Error creating entity manager factory.", e);
throw new PersistenceException(e);
}
}
public static boolean isValid(DatasourceConnection dc, Boolean autoCommit) {
try {
if (dc.getConnection().isClosed()) return false;
} catch (Throwable t) {
return false;
}
try {
if (dc.getDatasource().validate() && !DataSourceUtil.isValid(dc, 10)) return false;
} catch (Throwable t) {
} // not all driver support this, because of that we ignore a error here, also protect from java
// 5
try {
if (autoCommit != null) dc.getConnection().setAutoCommit(autoCommit.booleanValue());
} catch (Throwable t) {
return false;
}
return true;
}