[ https://issues.jboss.org/browse/ISPN-6845?page=com.atlassian.jira.plugin.... ] Krzysztof Sobolewski edited comment on ISPN-6845 at 7/7/16 7:30 AM: -------------------------------------------------------------------- I have a prototype implementation of this, but it's a direct extension of the existing classes/interfaces and the result is not really merge-worthy. It does the followng things: * The configuration of key/data name/type is changed from a single String to a List<String> so that we can declare multiple columns for the key and the value * The configuration builder uses varargs so source compatibility (not binary compatibility) is preserved * The Key2StringMapper interface is extended so that it can return multiple values (Objects, not String) for the key * The Key2StringMapper is also applied to the values * The TableManagers are modified to generate multi-column statements, which is a little more involved than a simple String.format() :) Overall, it works, but is a little awkward (Key2StringMapper applied to values? Key2StringMapper that generates Object[]? The mapper for values takes an extra "parameter" that is crammed in front of the array ob objects extracted from the database. The boolean fetchValues and boolean fetchMetadata parameters are ignored. Etc). The code is in https://github.com/ksobolew/infinispan/tree/ISPN-6845 if someone wishes to take a look. was (Author: ksobolewski): I have a prototype implementation of this, but it's a direct extension of the existing classes/interfaces and the result is not really merge-worthy. It does the followng things: * The configuration of key/data name/type is changed from a single String to a List<String> so that we can declare multiple columns for the key and the value * The configuration builder uses varargs so source compatibility (not binary compatibility) is preserved * The Key2StringMapper interface is extended so that it can return multiple values (Objects, not String) for the key * The Key2StringMapper is also applied to the values Overall, it works, but is a little awkward (Key2StringMapper applied to values? Key2StringMapper that generates Object[]? The mapper for values takes an extra "parameter" that is crammed in front of the array ob objects extracted from the database. The boolean fetchValues and boolean fetchMetadata parameters are ignored. Etc). The code is in https://github.com/ksobolew/infinispan/tree/ISPN-6845 if someone wishes to take a look. -- This message was sent by Atlassian JIRA (v6.4.11#64026)