[hibernate-dev] Hibernate Search DSL ideas

Emmanuel Bernard emmanuel at hibernate.org
Fri Nov 20 07:10:54 EST 2009

I am very against the idea of runtime failures. That's the whole point  
of a type safe fluent API.
I would rather put the effort on the framework side than on the  
developer side.
A string query language or a dynamic language is better if you are not  
bothered with helping the developer to write the query.

On 20 nov. 2009, at 12:31, Navin Surtani <nsurtani at redhat.com> wrote:

> Heya,
> I was just thinking last night about a couple of things about the DSL.
> Mainly, instead of having lots of return types, for example you  
> created a BooleanContext and a Negatable version if the Occur clause  
> was MUST. I was wondering, instead of having separate contexts, is  
> it easier to have one - and then if a user calls a buildQuery()  
> without sufficient information to actually build one we throw an  
> exception?
> I think this is cleaner in some ways because we don't have to create  
> so many different types of class, and we're always returning the  
> same instance. However, the drawback is that by this method we  
> "allow the user to make a mistake" and will be needing to throw  
> exceptions. So here's where the discussion starts - what are pros/ 
> cons of each system and which wind up being a better one to build?  
> Personally, I think having a single class context is better because  
> 1 - it's simpler to build and 2 - as long as classes are documented  
> properly and exceptions thrown are clear as to what the issue is  
> then we're okay.
> Ideas? Thoughts?
> Navin Surtani
> Intern Infinispan
> Intern JBoss Cache Searchable

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