Java/Cassandra throwing error with making Frozen attribute -


i have java class using datastax cassandra driver write pojo cassandra table. works fine, until comes having write class object cassandra table. throws error:

caused by: com.datastax.driver.core.exceptions.codecnotfoundexception: codec not found requested operation: [frozen< projkeyspace.smi > <-> code.generic.common.data.mycustomsmiobject]

so have tried lot of different things try , make attribute "frozen", nothing works , keep getting same error. here example of class object.

@table(keyspace="projkeyspace", name="summarytable") public class datagroupingobject implements serializable {      @column(name = "objid")     private string objid;     @column(name = "timeofjob")     private date timeofjob;      @column(name = "smiobjectinput")     @frozen     //have tried:     //@frozen("frozen<projkeyspace.smi>")     //@frozen("frozen<smi>")     //@frozen("frozen<mycustomsmiobject>")     //and other permutations can think of...     private mycustomsmiobject mycustomsmiobject; //the problem attribute      @column(name = "column5")     private string dataforcolumn5;      //getters , setters.... }

so overlooking? digging datastax documentation didn't show beyond this, http://docs.datastax.com/en/drivers/java/2.2/com/datastax/driver/mapping/annotations/frozen.html , tried.

i have tried having mycustomsmiobject mapped frozen 'projkeyspace.smi' , didn't work (of course didn't think since there isn't table in cassandra called smi, type) here example of it:

@table(keyspace="projkeyspace", name="smi") public class mycustomsmiobject implements serializable {      @column(name = "idstring")     private string idstring;     @column(name = "valuenum")     private double valuenum;      //getters , setters.... }

so said, @ loss. appreciated , in advance!

smi udt isn't it? in case mycustomsmiobject should annotated @udt(keyspace="projkeyspace", name="smi") instead of @table. doing that, driver should detect udt , register custom codec allow able serialize , deserialize it.

on note @frozen annotation has no impact on mapper, informational @ time until mapper has support schema generation.


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