has-methods

has,Message-method

This generic method, currently only implemented
for <links4class>Message</links4class> indicates if the message
has the given field set. For non repeated fields, a call to the <code>HasField</code>
method of the corresponding <code>Message</code> is issued.For repeated fields, a call to the <code>FieldSize</code>
method is issued, and the message is declared to have 
the field if the size is greater than 0.

methods

Protocol Buffers are a way of encoding structured data in
        an efficient yet extensible format. Google uses Protocol
        Buffers for almost all of its internal RPC protocols and file
        formats.

has-methods: Indicates if a message has the given field set

Description

Arguments