Thanks Lance. It looks like it's worth investigating. I've already started down the path of using a bean with "@Field(map_*)" on my HashMap setter. This defect tipped me off on this functionality: https://issues.apache.org/jira/browse/SOLR-1357 This technique provides me with a mechanism to store the HashMap data, but flattens the structure. I'll play with the ideas provided on "http://wiki.apache.org/solr/HierarchicalFaceting";. If anyone has some sample code (java + schema.xml) they can point me too that does "Hierarchical Faceting" I would very much appreciate it.
On Sat, Aug 25, 2012 at 6:42 PM, Lance Norskog <goks...@gmail.com> wrote: > There are more advanced ways to embed hierarchy in records. This describes > them: > > http://wiki.apache.org/solr/HierarchicalFaceting > > (This is a great page, never noticed it.) > > On Fri, Aug 24, 2012 at 8:12 PM, Sheldon P <sporc...@gmail.com> wrote: >> Thanks for the prompt reply Jack. Could you point me towards any code >> examples of that technique? >> >> >> On Fri, Aug 24, 2012 at 4:31 PM, Jack Krupansky <j...@basetechnology.com> >> wrote: >>> The general rule in Solr is simple: denormalize your data. >>> >>> If you have some maps (or tables) and a set of keys (columns) for each map >>> (table), define fields with names like <map-name>_<key-name>, such as >>> "map1_name", "map2_name", "map1_field1", "map2_field1". Solr has dynamic >>> fields, so you can define "<map-name>_*" to have a desired type - if all the >>> keys have the same type. >>> >>> -- Jack Krupansky >>> >>> -----Original Message----- From: Sheldon P >>> Sent: Friday, August 24, 2012 3:33 PM >>> To: solr-user@lucene.apache.org >>> Subject: How do I represent a group of customer key/value pairs >>> >>> >>> I've just started to learn Solr and I have a question about modeling data >>> in the schema.xml. >>> >>> I'm using SolrJ to interact with my Solr server. It's easy for me to store >>> key/value paris where the key is known. For example, if I have: >>> >>> title="Some book title" >>> author="The authors name" >>> >>> >>> I can represent that data in the schema.xml file like this: >>> >>> <field name="title" type="text_general" indexed="true" >>> stored="true"/> >>> <field name="author" type="text_general" indexed="true" >>> stored="true"/> >>> >>> I also have data that is stored as a Java HashMap, where the keys are >>> unknown: >>> >>> Map<String, String> map = new HashMap<String, String>(); >>> map.put("some unknown key", "some unknown data"); >>> map.put("another unknown key", "more unknown data"); >>> >>> >>> I would prefer to store that data in Solr without losing its hierarchy. >>> For example: >>> >>> <field name="map" type="maptype" indexed="true" stored="true"/> >>> >>> <field name="some unknown key" type="text_general" indexed="true" >>> stored="true"/> >>> >>> <field name="another unknown key" type="text_general" indexed="true" >>> stored="true"/> >>> >>> </field> >>> >>> >>> Then I could search for "some unknown key", and receive "some unknown data". >>> >>> Is this possible in Solr? What is the best way to store this kind of data? > > > > -- > Lance Norskog > goks...@gmail.com
