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In-Reply-To: <1275386322.2481.40.camel@supertool-2907-01>
References: <1275386322.2481.40.camel@supertool-2907-01>
Date: Tue, 1 Jun 2010 19:23:05 +0800
Message-ID: <AANLkTikzYH8q5S_ldmg1mjAy6jL4lIXlb9gxCLYBZS5-@mail.gmail.com>
Subject: Re: question about class SlicePredicate
From: Eric Yu <sucode@gmail.com>
To: user@cassandra.apache.org
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It needs a SliceRange. For example:

SliceRange range = new SliceRange(); range.setStart("".getBytes());
range.setFinish("".getBytes()); range.setReversed(true); range.setCount(20);
SlicePredicate sp = new SlicePredicate(); sp.setSlice_range(range);
client.get_slice(KEYSPACE, KEY, ColumnParent, sp, ConsistencyLevel.ONE);

2010/6/1 Shuai Yuan <yuanshuai@supertool.net.cn>

> Hi all,
>
> I don't quite understand the usage of 'class SlicePredicate' when trying
> to retrieve a ranged slice.
>
> How should it be initialized?
>
> Thanks!
> --
> Kevin Yuan
> www.yuan-shuai.info
>
>
>

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It needs a SliceRange. For example:<div><br></div><div><div><span class=3D"=
Apple-style-span" style=3D"white-space: pre;">SliceRange range =3D new Slic=
eRange();
range.setStart(&quot;&quot;.getBytes());
range.setFinish(&quot;&quot;.getBytes());
range.setReversed(true);
range.setCount(20);

SlicePredicate sp =3D new SlicePredicate();
sp.setSlice_range(range);

client.get_slice(KEYSPACE, KEY, ColumnParent, <span class=3D"Apple-style-sp=
an" style=3D"background-color: rgb(255, 255, 0);">sp</span>, ConsistencyLev=
el.ONE);</span></div><div><br><div class=3D"gmail_quote">2010/6/1 Shuai Yua=
n <span dir=3D"ltr">&lt;<a href=3D"mailto:yuanshuai@supertool.net.cn">yuans=
huai@supertool.net.cn</a>&gt;</span><br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex;">Hi all,<br>
<br>
I don&#39;t quite understand the usage of &#39;class SlicePredicate&#39; wh=
en trying<br>
to retrieve a ranged slice.<br>
<br>
How should it be initialized?<br>
<br>
Thanks!<br>
<font color=3D"#888888">--<br>
Kevin Yuan<br>
<a href=3D"http://www.yuan-shuai.info" target=3D"_blank">www.yuan-shuai.inf=
o</a><br>
<br>
<br>
</font></blockquote></div><br></div></div>

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