/**
* Find the record with the specified primary keys
*
* @return DataPoint or null if no record is found
*/
public DataPoint find(int id) {
DataPoint rec = new DataPoint();
// Create temp object and look in cache for it
((DataPoint_base) rec).initialize(id);
rec = (DataPoint) GenOrmDataSource.getGenOrmConnection().getCachedRecord(rec.getRecordKey());
java.sql.PreparedStatement genorm_statement = null;
java.sql.ResultSet genorm_rs = null;
if (rec == null) {
try {
// No cached object so look in db
genorm_statement = GenOrmDataSource.prepareStatement(SELECT + FROM + KEY_WHERE);
genorm_statement.setInt(1, id);
s_logger.debug(genorm_statement.toString());
genorm_rs = genorm_statement.executeQuery();
if (genorm_rs.next()) rec = newDataPoint(genorm_rs);
} catch (java.sql.SQLException sqle) {
throw new GenOrmException(sqle);
} finally {
try {
if (genorm_rs != null) genorm_rs.close();
if (genorm_statement != null) genorm_statement.close();
} catch (java.sql.SQLException sqle2) {
throw new GenOrmException(sqle2);
}
}
}
return (rec);
}
/**
* Closes any underlying java.sql.Result set and java.sql.Statement that was used to create this
* results set.
*/
public void close() {
try {
m_resultSet.close();
m_statement.close();
} catch (java.sql.SQLException sqle) {
throw new GenOrmException(sqle);
}
}
/**
* This resets the key generator from the values in the database Usefull if the generated key
* has been modified via some other means Connection must be open before calling this
*/
public synchronized void reset() {
m_nextKey = 0;
java.sql.Statement stmnt = null;
java.sql.ResultSet rs = null;
try {
stmnt = GenOrmDataSource.createStatement();
rs = stmnt.executeQuery(MAX_QUERY);
if (rs.next()) m_nextKey = rs.getInt(1);
} catch (java.sql.SQLException sqle) {
// The exception may occur if the table does not yet exist
if (WARNINGS) System.out.println(sqle);
} finally {
try {
if (rs != null) rs.close();
if (stmnt != null) stmnt.close();
} catch (java.sql.SQLException sqle2) {
throw new GenOrmException(sqle2);
}
}
}
public DataPointKeyGenerator(javax.sql.DataSource ds) {
m_nextKey = 0;
java.sql.Connection con = null;
java.sql.Statement stmnt = null;
try {
con = ds.getConnection();
con.setAutoCommit(true);
stmnt = con.createStatement();
java.sql.ResultSet rs = stmnt.executeQuery(MAX_QUERY);
if (rs.next()) m_nextKey = rs.getInt(1);
rs.close();
} catch (java.sql.SQLException sqle) {
// The exception may occur if the table does not yet exist
if (WARNINGS) System.out.println(sqle);
} finally {
try {
if (stmnt != null) stmnt.close();
if (con != null) con.close();
} catch (java.sql.SQLException sqle) {
}
}
}