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Date: Tue, 22 Jul 2014 22:37:42 +0200
Message-ID: 
 <CABNXB2AFC+mxtmBfFF-vZNUnz-ONjxMLCDSJdTAWCxAmU5TdYw@mail.gmail.com>
Subject: Re: Which way to Cassandraville?
From: DuyHai Doan <doanduyhai@gmail.com>
To: user@cassandra.apache.org
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"I surmise if you are using a mapper, it should be more a matter of knowing
how the annotations map to the back-end rather than the CQL"

 It would be too easy. You should also know how the CQL3 maps to underlying
data storage.


On Tue, Jul 22, 2014 at 10:33 PM, jcllings <jcllings@gmail.com> wrote:

>
> On 07/22/2014 01:11 PM, Robert Stupp wrote:
>
> Let me respond with another question: How important is SQL for a JPA
> developer?
> ...
>
>  IMO mappers help and make life easier. Period.
>
>
>  Means: you should always know what the "thing" does to read/write your
> data. Practically not down to the details - but the concepts and pitfalls
> should be known.
> If you don't you will get into trouble - sooner or later.
>
>  Robert
>
>  PS: I avoid the abbreviation ORM - it includes the term "relational" ;)
>
>
> Agreed. That is why in previous posts I've been calling it "PoJo
> Mapping".  When someone suggests I try on yet another hat, though, I get a
> little excited. ;-)
>
> In this case I've been wearing the ORM / RDBMS hat for long enough that I
> actually don't think about it much. So your point is made. I've already
> been wearing the hat in question.  I surmise if you are using a mapper, it
> should be more a matter of knowing how the annotations map to the back-end
> rather than the CQL. This may make the transition easier, because as you
> say, it eliminates the cruft.
>
>
> Jim C.
>

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<div dir=3D"ltr"><div><div>&quot;I surmise if you are
    using a mapper, it should be more a matter of knowing how the
    annotations map to the back-end rather than the CQL&quot;<br><br></div>=
=C2=A0It would be too easy. You should also know how the CQL3 maps to under=
lying data storage.<br><br></div>=C2=A0<br></div><div class=3D"gmail_extra"=
><br><br>
<div class=3D"gmail_quote">On Tue, Jul 22, 2014 at 10:33 PM, jcllings <span=
 dir=3D"ltr">&lt;<a href=3D"mailto:jcllings@gmail.com" target=3D"_blank">jc=
llings@gmail.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote"=
 style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

 =20
   =20
 =20
  <div text=3D"#000000" bgcolor=3D"#FFFFFF"><div class=3D"">
    <br>
    <div>On 07/22/2014 01:11 PM, Robert Stupp
      wrote:<br>
    </div>
    </div><blockquote type=3D"cite"><div class=3D"">
     =20
      <div>Let me respond with another question: How important is SQL
        for a JPA developer?</div></div>
      ...<div class=3D""><br>
      <div>
        <div>IMO mappers help and make life easier. Period.</div>
      </div>
    </div></blockquote><div class=3D"">
    <br>
    <blockquote type=3D"cite">
      <div>Means: you should always know what the &quot;thing&quot; does to
        read/write your data. Practically not down to the details - but
        the concepts and pitfalls should be known.</div>
      <div>If you don&#39;t you will get into trouble - sooner or later.</d=
iv>
      <div><br>
      </div>
      <div>Robert</div>
      <div><br>
      </div>
      <div>PS: I avoid the abbreviation ORM - it includes the term
        &quot;relational&quot; ;)</div>
      <div><br>
      </div>
    </blockquote>
    <br></div>
    Agreed. That is why in previous posts I&#39;ve been calling it &quot;Po=
Jo
    Mapping&quot;.=C2=A0 When someone suggests I try on yet another hat, th=
ough, I
    get a little excited. ;-)=C2=A0 <br>
    <br>
    In this case I&#39;ve been wearing the ORM / RDBMS hat for long enough
    that I actually don&#39;t think about it much. So your point is made.
    I&#39;ve already been wearing the hat in question.=C2=A0 I surmise if y=
ou are
    using a mapper, it should be more a matter of knowing how the
    annotations map to the back-end rather than the CQL. This may make
    the transition easier, because as you say, it eliminates the cruft.
    <br>
    <br>
    <br>
    Jim C. <br>
  </div>

</blockquote></div><br></div>

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