[Cps4] tests statistic

[Florent Guillaume]

Thanks for this.

On 4 Apr 2006, at 12:25, Mircea-Eugen Ionica wrote:
>> Some tests I'd be interested in having (but maybe reading the source
>> would give an answer too) are the optimizations available for the
>> following cases:
>>
>> - can I get the number of subnodes of a node without taking too much
>> time?
>>    For instance will the length of the NodeIterator returned by
>> node.getNodes() be computed efficiently?
>
> get number of childs test
> getting node took 6 milliseconds
> node have 100 childs
> (System.out.println( "node have " + node.getNodes().getSize() + "  
> childs ");)
> getting node child number took 2 milliseconds

I'd be interested in variation when you have 1, 10, 100, 1000 children

>> - can I ask the jcr:uuid of a node which has many properties without
>> incurring the cost of reading all these properties.
>>   Zope will do that all the time.
>
> get uuid test
> getting node took 7 milliseconds
> node have uuid 1042b872-4e1f-4600-b87d-505bbd13f71f
> (System.out.println( "node have uuid " + node.getUUID());
> getting uuid took 0 milliseconds

Can you check this time when there are 1, 10, 100 additional  
properties which are big STRING of BINARY objects?

>> - can I get the length of a STRING or BINARY value efficiently,
>> without the value itself being read?
>>   This is important to be able to fetch in one go all the small
>> properties, but make the big ones lazy.
>
> well I'm not sure there is direct way to do that

Well, Value has a getLength() method that should do it, if I'm not  
mistaken.

Florent

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Florent Guillaume, Nuxeo (Paris, France)   Director of R&D
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