equals and hashcode? about protostuff

[kshchepanovskyi]

Hi,

java_bean template does not generate equals/hashCode implementation.
But you can extend it and add your implementation. For example (using Java 7 Objects class):

message_equals_and_hashcode(message, options) ::= <<
@Override
public boolean equals(Object obj) {
    if (this == obj) {
        return true;
    }
    if (obj == null || this.getClass() != obj.getClass()) {
        return false;
    }
    final <message.name> that = (<message.name>) obj;
    <if(first(message.fields))>
    return
            <message.fields:field_equals(field=it, options=options, message=message); separator=" &&\n">;
    <else>
    return true;
    <endif>
}

@Override
public int hashCode() {
    <if(first(message.fields))>
    return Objects.hash(<message.fields:field_name(field=it, options=options, message=message); separator=", ">);
    <else>
    return 0;
    <endif>
}

>>

field_equals(field, options, message) ::= <<
Objects.equals(this.<var(val=field.name, fmt="CC", options=options)>, that.<var(val=field.name, fmt="CC", options=options)>)
>>

Maybe we can add this functionality to the next release - 1.3.2. I need to check how it affects other templates.

[kshchepanovskyi]

@dyu please check these issues on google code:

• https://code.google.com/p/protostuff/issues/detail?id=144
• https://code.google.com/p/protostuff/issues/detail?id=166

I think they can be closed.

[dyu]

Its not implemented for 1.0.x, leaving it open might be the best option.
I think leaving a comment that it is implemented in 1.3.x is enough.

I've updated the googlecode site stating that no new features will be added for 1.0.x

[nwertzberger]

Ladies and gents, you literally can't pay for this type of service. You are all awesome. What can i do to help? I'll start walking the docs while i'm working on this stuff.

[dyu]

Share your experiences. Spread the word!
Hope this project benefits yours.