private Connection getRawConnectionForReadOnly(Options options) {
try {
Connection conn = target.getConnection(options);
conn.setAutoCommit(true);
conn.setReadOnly(true);
if (session.getTransactionIsolation() != 0) {
if (conn.getTransactionIsolation() != session.getTransactionIsolation()) {
conn.setTransactionIsolation(session.getTransactionIsolation());
}
}
return conn;
} catch (SQLException e) {
throw DbException.convert(e);
}
}
public ConnectionHolder(Session session) {
Database database = session.getDatabase();
JdbcRepository repository = (JdbcRepository) database.getRepository();
this.session = session;
this.trace = database.getTrace(Trace.TRANSACTION);
this.target = repository.getConnectionProvider();
String mode = database.getSettings().transactionMode;
this.holderStrategy = transactionMode(mode);
}
private void cloneLobs(Value[] values) {
for (int i = 0; i < values.length; i++) {
Value v = values[i];
Value v2 = v.copyToResult();
if (v2 != v) {
session.addTemporaryLob(v2);
values[i] = v2;
}
}
}
@Override
public synchronized Connection getConnection(Options options) {
Connection conn;
if (session.getAutoCommit()) {
conn = getRawConnection(options);
} else {
conn = getConnectionWithStrategy(options);
}
return conn;
}
/**
* Construct a local result object.
*
* @param session the session
* @param expressions the expression array
* @param visibleColumnCount the number of visible columns
*/
public LocalResult(Session session, Expression[] expressions, int visibleColumnCount) {
this.session = session;
if (session == null) {
this.maxMemoryRows = Integer.MAX_VALUE;
} else {
this.maxMemoryRows = session.getDatabase().getMaxMemoryRows();
}
rows = New.arrayList(20);
this.visibleColumnCount = visibleColumnCount;
rowId = -1;
this.expressions = expressions;
}
/**
* @param options
* @return
* @throws SQLException
*/
private Connection getRawConnection(Options options) throws DbException {
Connection conn = target.getConnection(options);
try {
if (conn.getAutoCommit() != session.getAutoCommit()) {
conn.setAutoCommit(session.getAutoCommit());
}
if (session.getTransactionIsolation() != 0) {
if (conn.getTransactionIsolation() != session.getTransactionIsolation()) {
conn.setTransactionIsolation(session.getTransactionIsolation());
}
}
if (conn.isReadOnly() != session.isReadOnly()) {
conn.setReadOnly(session.isReadOnly());
}
} catch (Exception e) {
throw DbException.convert(e);
}
return conn;
}