You should have the message type's Descriptors.Descriptor in order to have
gotten a DynamicMessage in the first place. That class is the equivalent of
the C++ Descriptor class and has a findFieldByName
method<https://developers.google.com/protocol-buffers/docs/reference/java/com/google/protobuf/Descriptors.Descriptor.html#findFieldByName(java.lang.String)>
.

On Wed, May 9, 2012 at 3:44 PM, Vinay Bansal <[email protected]> wrote:

> Hey,
>
> I have generated DynamicMessage from available FileDescriptorSet, now
> I want to be able to get fields from this message. Based on the
> typename I know what kind of message this is, but I don't know how to
> get the value of any particular field.
>
> Available getter functions available in java library like
> getField(Descriptors.FieldDescriptor field) need a FieldDescriptor for
> the field, which I don't know how to generate. In C++ library there is
> a func called FindFieldByName(String) which returns the corresponding
> FieldDescriptor but I couldn't find a similar function for java
> library.
>
> Please help
>
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