[zeromq-dev] Requesting suggestions for getsockopt() in Java

[Matt Weinstein]

Doesn't Java have "Generics" (like C++ templates)?  Can you do this:

	void setSocketOpt<int>(int optID, int)

and translate it to the items below --?

On Aug 9, 2010, at 11:15 AM, Matt Weinstein wrote:

> isn't this where Hungarian notation is useful ? :-)
>
> void setIntSocketOpt(int optID, int)
> void setByteSetSocketOpt(int optID, byte[])
> ...
>
> awful, but typesafe :-(
>
> On Aug 9, 2010, at 10:51 AM, Steven McCoy wrote:
>
>> On 9 August 2010 22:42, Martin Sustrik <sustrik at 250bpm.com> wrote:
>> gonzalo diethelm wrote:
>> >>> As always, just copy Sun's original implementation, implement
>> > getters
>> >>> and setters for every socket option:
>> >> +1
>> >
>> > Ok, but I seem to remember there was a point made about not adding
>> > separate interfaces for each socket option; this way, when new  
>> options
>> > are added, old code can be made aware of them without changes (or
>> > something to that effect). Perhaps this only applied to C code.
>> >
>> > So, if we go the full Java way, we would end up with the following
>> > methods:
>> >
>> >   void setSocketHWM(int hwm);
>> >   void setSocketSwap(int swap);
>> >   void setSocketAffinity(int affinity);
>> >   void setSocketIdentity(byte[] identity);
>> >   void setSocketSubscribe(byte[] subscribe);
>> >   void setSocketUnsubscribe(byte[] unsubscribe);
>> >   void setSocketRate(int rate);
>> >   void setSocketRecoveryInterval(int recovery_interval);
>> >   void setSocketMulticastLoop(boolean multicast_loop);
>> >   void setSocketSendBufferSize(int sndbuf);
>> >   void setSocketReceiveBufferSize(int rcvbuf);
>> >   void setSocketReceiveMore(boolean rcvmore);
>> >
>> >   int getSocketHWM();
>> >   int getSocketSwap();
>> >   int getSocketAffinity();
>> >   byte[] getSocketIdentity();
>> >   byte[] getSocketSubscribe();
>> >   byte[] getSocketUnsubscribe();
>> >   int getSocketRate();
>> >   int getSocketRecoveryInterval();
>> >   boolean getSocketMulticastLoop();
>> >   int getSocketSendBufferSize();
>> >   int getSocketReceiveBufferSize();
>> >   boolean getSocketReceiveMore();
>> >
>> > Thoughts?
>>
>> What I saw on the page referenced by Steve looked like this:
>>
>>        void setOption(int optID, Object val) throws SocketException;
>>        Object getOption(int optID) throws SocketException;
>>
>> Isn't that sandard Java sockopt interface?
>>
>>
>> Perversely they are doing both, I read the article as that they  
>> have now introduced the type-safe API in 1.4.  I don't see the  
>> Object API listed in the documentation, so I presume it's now only  
>> the internal API,
>>
>> http://download-llnw.oracle.com/javase/1.4.2/docs/api/java/net/Socket.html
>> http://download.oracle.com/javase/1.4.2/docs/api/java/net/ServerSocket.html
>>
>> -- 
>> Steve-o
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>
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