Hi,
look at the URL you sent:
https://github.com/orientechnologies/orientdb/wiki/OrientDB-REST#example-5.
"operations" property must be a collection. Try this instead:

{"transaction":true,"operations":[{"type":"cmd","language":"sql","command":"select
* from PersonCV"}]}

Lvc@



On 18 December 2013 13:20, Lebnik <[email protected]> wrote:

> I do basic authorization and then send POST data to
> http://localhost:2480/batch/lebnik
> My POST
> data: 
> {"transaction":true,"operations":{"type":"cmd","language":"sql","command":"select
> * from PersonCV"}}
> And get error: java.lang.ClassCastException: java.util.LinkedHashMap
> cannot be cast to java.util.Collection
> Why? I do all on instruction
> https://github.com/orientechnologies/orientdb/wiki/OrientDB-REST#post---batch
> In console this request:
> orientdb> select * from PersonCV
>
>
> ----+-----+-------+----------+-----------
> #   |@RID |name   |in_LovesCE|out_LovesCE
>
>
> ----+-----+-------+----------+-----------
> 0   |#11:0|Joanie |#11:1     |null
> 1   |#11:1|Chachie|null      |[2]
> 2   |#11:2|Jimmy  |#11:1     |null
>
>
> ----+-----+-------+----------+-----------
>
>
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