Pavel Pereslegin created IGNITE-24564:
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Summary: Sql. Prepare catalog serializers to move to new protocol
version
Key: IGNITE-24564
URL: https://issues.apache.org/jira/browse/IGNITE-24564
Project: Ignite
Issue Type: Improvement
Components: sql
Reporter: Pavel Pereslegin
Full description of the new protocol
https://github.com/ggprivate/gridgain-9/pull/1790/files?short_path=b620061#diff-b6200614bc71e194a446cad5d275138fedf1e1f4ffde59b5be17e2fc8c93fc54
In order to migrate to the new serialization protocol.
1. Need to introduce annotation class
{code:java}
@Target(ElementType.TYPE)
@Retention(RUNTIME)
public @interface CatalogSerializer {
/**
* Returns serializer version.
*/
short version();
/**
* Returns the type of the object being serialized.
*/
MarshallableEntryType type();
/**
* The product version starting from which the serializer is used.
*/
String since();
}
{code}
2. Annotate all existing serializers with @CatalogSerializer(version=1,
since="3.0.0", type=<type>)
3. Move all existing serializers to separate package (this will required make
missing methods to access private fields of descriptors).
4. Implement serializer registry building.
interface CatalogEntrySerializerProvider {
// New method is used to obtain serializer of specific version.
CatalogObjectSerializer<MarshallableEntry> get(int version, int typeId);
// Used to obtain the newest serializer version.
int activeSerializerVersion(int typeId);
}
During initialization registry must scan serializer folder and build registry
of available serializers.
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