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From: Edward Capriolo <edlinuxguru@gmail.com>
Date: Thu, 9 Feb 2017 10:49:05 -0500
Message-ID: <CAENxBwx1=9q7wNb23DEAJGS2FRh6BLzVbUHiDvNV_RwNJJBPyg@mail.gmail.com>
Subject: Re: Composite partition key token
To: "user@cassandra.apache.org" <user@cassandra.apache.org>
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archived-at: Thu, 09 Feb 2017 15:49:12 -0000

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On Thu, Feb 9, 2017 at 9:26 AM, Michael Burman <miburman@redhat.com> wrote:

> Hi,
>
> How about taking it from the BoundStatement directly?
>
> ByteBuffer routingKey =3D b.getRoutingKey(ProtocolVersion.NEWEST_SUPPORTE=
D,
> codecRegistry);
> Token token =3D metadata.newToken(routingKey);
>
> In this case the b is the "BoundStatement". Replace codecRegistry &
> ProtocolVersion with what you have. codecRegistry for example from the
> codecRegistry =3D session.getCluster().getConfig
> uration().getCodecRegistry();
>
>   - Micke
>
>
> On 02/08/2017 08:58 PM, Branislav Janosik -T (bjanosik - AAP3 INC at
> Cisco) wrote:
>
>>
>> Hi,
>>
>> I would like to ask how to calculate token for composite partition key
>> using java api?
>>
>> For partition key made of one column I use cluster.getMetadata().newToke=
n
>> (newBuffer);
>>
>> But what if my key looks like this PRIMARY KEY
>> ((parentResourceId,timeRT), childName)?
>>
>> I read that =E2=80=9C:=E2=80=9D is a separator but it doesn=E2=80=99t se=
em to be the case.
>>
>> How can I create ByteBuffer with multiple values so that the token would
>> be actually correct?
>>
>> Thank you,
>>
>> Branislav
>>
>>
>
This could help:
https://github.com/edwardcapriolo/simple-cassandra-tools/blob/master/src/ma=
in/java/io/teknek/cassandra/simple/CompositeTool.java

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<div dir=3D"ltr"><br><div class=3D"gmail_extra"><br><div class=3D"gmail_quo=
te">On Thu, Feb 9, 2017 at 9:26 AM, Michael Burman <span dir=3D"ltr">&lt;<a=
 href=3D"mailto:miburman@redhat.com" target=3D"_blank">miburman@redhat.com<=
/a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:=
0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);=
border-left-style:solid;padding-left:1ex">Hi,<br>
<br>
How about taking it from the BoundStatement directly?<br>
<br>
ByteBuffer routingKey =3D b.getRoutingKey(ProtocolVersio<wbr>n.NEWEST_SUPPO=
RTED, codecRegistry);<br>
Token token =3D metadata.newToken(routingKey);<br>
<br>
In this case the b is the &quot;BoundStatement&quot;. Replace codecRegistry=
 &amp; ProtocolVersion with what you have. codecRegistry for example from t=
he codecRegistry =3D session.getCluster().getConfig<wbr>uration().getCodecR=
egistry();<br>
<br>
=C2=A0 - Micke<br>
<br>
<br>
On 02/08/2017 08:58 PM, Branislav Janosik -T (bjanosik - AAP3 INC at Cisco)=
 wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-=
left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;p=
adding-left:1ex">
<br>
Hi,<br>
<br>
I would like to ask how to calculate token for composite partition key usin=
g java api?<br>
<br>
For partition key made of one column I use cluster.getMetadata().newToken<w=
br>(newBuffer);<br>
<br>
But what if my key looks like this PRIMARY KEY ((parentResourceId,timeRT), =
childName)?<br>
<br>
I read that =E2=80=9C:=E2=80=9D is a separator but it doesn=E2=80=99t seem =
to be the case.<br>
<br>
How can I create ByteBuffer with multiple values so that the token would be=
 actually correct?<br>
<br>
Thank you,<br>
<br>
Branislav<br>
<br>
</blockquote>
<br>
</blockquote></div><br></div><div class=3D"gmail_extra">This could help:</d=
iv><div class=3D"gmail_extra"><a href=3D"https://github.com/edwardcapriolo/=
simple-cassandra-tools/blob/master/src/main/java/io/teknek/cassandra/simple=
/CompositeTool.java">https://github.com/edwardcapriolo/simple-cassandra-too=
ls/blob/master/src/main/java/io/teknek/cassandra/simple/CompositeTool.java<=
/a><br></div></div>

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