public void close() throws SQLException {
if (m_portal.isValid()) {
m_portal.close();
m_statement.resultSetClosed(this);
m_table = null;
m_tableRow = -1;
m_currentRow = null;
m_nextRow = null;
super.close();
}
}
SPIResultSet(SPIStatement statement, Portal portal, int maxRows) throws SQLException {
super(statement.getFetchSize());
m_statement = statement;
m_portal = portal;
m_maxRows = maxRows;
m_tupleDesc = portal.getTupleDesc();
m_tableRow = -1;
}
protected final TupleTable getTupleTable() throws SQLException {
if (m_table == null) {
Portal portal = this.getPortal();
if (portal.isAtEnd()) return null;
int mx;
int fetchSize = this.getFetchSize();
if (m_maxRows > 0) {
mx = m_maxRows - portal.getPortalPos();
if (mx <= 0) return null;
if (mx > fetchSize) mx = fetchSize;
} else mx = fetchSize;
try {
int result = portal.fetch(true, mx);
if (result > 0) m_table = SPI.getTupTable(m_tupleDesc);
m_tableRow = -1;
} finally {
SPI.freeTupTable();
}
}
return m_table;
}
protected final Portal getPortal() throws SQLException {
if (!m_portal.isValid()) throw new SQLException("ResultSet is closed");
return m_portal;
}