Hi Alek, can you elaborate a bit on what you mean by lazy parsing?
I think what I want is to be able to *reuse* my objects, specifically
the instances of MyMessage, instead of allocating new ones each time
through the loop. This is analagous to what my C++ code does when
writing out messages, it re-uses the same message object, clearing it
between uses.
On Jul 18, 12:25 am, Alek Storm wrote:
> I think what you want is lazy parsing, which unfortunately isn't available
> yet. You could always read bytes off the stream in chunks, or write your
> own CodedInputStream to skip to the end of each message every time it sees a
> length.
>
> Alek
>
> On Fri, Jul 17, 2009 at 8:13 PM, Alex Black wrote:
>
> > When I write out messages using C++ I'm careful to clear messages and
> > re-use them, is there something equivalent on the java side when
> > reading those same messages in?
>
> > My code looks like:
>
> > CodedInputStream stream = CodedInputStream.newInstance(inputStream);
>
> > while ( !stream.isAtEnd() )
> > {
> > MyMessage.Builder builder = MyMessage.newBuilder();
> > stream.readMessage(builder, null);
> > MyMessage myMessage = builder.build();
>
> > for ( MessageValue messageValue : myMessage.getValuesList() )
> > {
> > ..
> > }
> > }
>
> > I'm passing 150 messages each with 1000 items, so presumably memory is
> > allocated 150 times for each of the messages...
>
> > - Alex
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
"Protocol Buffers" group.
To post to this group, send email to protobuf@googlegroups.com
To unsubscribe from this group, send email to
protobuf+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/protobuf?hl=en
-~--~~~~--~~--~--~---
