I think your class is missing a required
public TypeSerializer<Void> getSerializer() {}
method
This is what you need to derive from
https://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=blob;f=src/java/org/apache/cassandra/db/marshal/AbstractType.java;h=74fe446319c199433b47d3ae60fc4d644e86b653;hb=03045ca22b11b0e5fc85c4fabd83ce6121b5709b
On 09/04/2013 09:14 AM, Katsutoshi wrote:
package my.marshal;
import java.nio.ByteBuffer;
import org.apache.cassandra.db.marshal.AbstractType;
import org.apache.cassandra.db.marshal.MarshalException;
import org.apache.cassandra.utils.ByteBufferUtil;
public class DummyType extends AbstractType<Void> {
public static final DummyType instance = new DummyType();
private DummyType(){
}
public Void compose(ByteBuffer bytes){
return null;
}
public ByteBuffer decompose(Void value){
return ByteBufferUtil.EMPTY_BYTE_BUFFER;
}
public int compare(ByteBuffer o1, ByteBuffer o2){
return 0;
}
public String getString(ByteBuffer bytes){
return "";
}
public ByteBuffer fromString(String source) throws MarshalException{
if(!source.isEmpty()) throw new
MarshalException(String.format("'%s' is not empty", source));
return ByteBufferUtil.EMPTY_BYTE_BUFFER;
}
public void validate(ByteBuffer bytes) throws MarshalException{
}
}