Hi, Is this change needed for it to work, I mean, is it blocking you? It sounds like a potential performance optimization, however I'm not sure if it makes sense to change H2 at this stage. Couldn't you use regular serialization? If serialization is really the (performance) bottleneck, we could do this.
Regards, Thomas On Wed, May 15, 2013 at 5:00 PM, Nicolas Fortin (OrbisGIS) < [email protected] <javascript:_e({}, 'cvml', '[email protected]');>>wrote: > The parameter could be also a class that extend > org.h2.api.JavaObjectSerializer however it would be not as flexible as > extending 'org.h2.value.Value' > > Le mercredi 15 mai 2013 16:54:46 UTC+2, Nicolas Fortin (OrbisGIS) a écrit : > >> Hi, >> >> I succeed on creating an IntelliJ project for H2, then it is easier to me >> to to dev in H2. >> >> I have some issues with h2 java object field, after serialization the >> object size overhead is too high. I think about extending the OTHER type >> this way : >> CREATE DOMAIN Geometry AS OTHER('org.h2spatial.** >> ValueGeometry.FromBytes'); >> >> The optional parameter is a static method that return a class that >> extends 'org.h2.value.Value' in order to convert byte[] array into the >> appropriate field object. >> >> What do you think about this solution ? >> >> -Nicolas >> >> Le mardi 16 avril 2013 17:13:06 UTC+2, Nicolas Fortin (OrbisGIS) a écrit : >>> >>> Hi, >>> >>> I'm a team member of GIS working group at IRSTV. My next task is to >>> cleanly incorporate spatial analysis into or onto H2. Our project >>> repository is here https://github.com/irstv/H2GIS**. >>> >>> Currently I'm trying to learn as most as I can of H2 and all other H2 >>> spatial projects. >>> >>> Using custom datatype and functions through "CREATE DOMAIN" and "CREATE >>> ALIAS" leads to call theses functions to all new local H2 DataBase and >>> existing H2 DataBase connection with admin rights.. >>> >>> I think about creating a custom Driver for spatial >>> ex:"org.h2spatial.Driver" then catch admin connection on local h2 DataBase, >>> but it must not be a great idea ? >>> >>> You were talking about MVStore and custom data type (de)serialisation, >>> but I don't find samples, and I don't find a way to feed a Class or object >>> factory. But anyway it seems that this storage is not yet used in H2. May >>> be I should work on the snapshot release ? >>> >>> Final words are, what do you think is the best strategy ? Working with >>> you on the trunk to incorporate h2 spatial in native or continue to stick >>> with version 1.3.171 and build a overloaded Driver for spatial purposes ? >>> >>> Thank you for your support >>> >>> >>> >>> >>> -- > You received this message because you are subscribed to the Google Groups > "H2 Database" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:_e({}, > 'cvml', 'h2-database%[email protected]');>. > To post to this group, send email to > [email protected]<javascript:_e({}, 'cvml', > '[email protected]');> > . > Visit this group at http://groups.google.com/group/h2-database?hl=en. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- You received this message because you are subscribed to the Google Groups "H2 Database" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/h2-database?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
