@Override
public DbFuture<PreparedUpdate> prepareUpdate(String sql) {
checkClosed();
final Request request = requestCreator.executePrepareUpdate(sql);
queRequest(request);
return (DbFuture<PreparedUpdate>) request.getToComplete();
}
@Override
public DbFuture<Result> executeUpdate(String sql) {
checkClosed();
final Request request = requestCreator.executeUpdate(sql);
queRequest(request);
return (DbFuture) request.getToComplete();
}
@Override
public <T> DbFuture<T> executeQuery(String sql, ResultHandler<T> eventHandler, T accumulator) {
checkClosed();
synchronized (lock) {
final Request request = requestCreator.createQuery(sql, eventHandler, accumulator);
queRequest(request);
return (DbFuture<T>) request.getToComplete();
}
}
@Override
public DbFuture<Void> rollback() {
checkClosed();
synchronized (lock) {
if (!isInTransaction()) {
throw new DbException("Not currently in a transaction, cannot rollback");
}
final Request request = requestCreator.rollbackTransaction();
queRequest(request);
isInTransaction = false;
return (DbFuture<Void>) request.getToComplete();
}
}
@Override
public void beginTransaction() {
checkClosed();
synchronized (lock) {
if (isInTransaction()) {
throw new DbException(
"Cannot begin new transaction. Current transaction needs to be committed or rolled back");
}
isInTransaction = true;
final Request request = requestCreator.beginTransaction();
queRequest(request);
}
}
@Override
public DbFuture<Void> close(CloseMode closeMode) throws DbException {
synchronized (lock) {
if (this.closeFuture != null) {
return closeFuture;
}
if (closeMode == CloseMode.CANCEL_PENDING_OPERATIONS) {
forceCloseOnPendingRequests();
}
Request request = requestCreator.createCloseRequest();
forceQueRequest(request);
closeFuture = (DefaultDbFuture<Void>) request.getToComplete();
closeFuture.addListener(
new DbListener<Void>() {
@Override
public void onCompletion(DbFuture<Void> future) {
H2Connection.this.manager.removeConnection(H2Connection.this);
}
});
return closeFuture;
}
}