tech.mlsql.common.utils.kv

Class KVStoreSerializer

java.lang.Object

tech.mlsql.common.utils.kv.KVStoreSerializer

public class KVStoreSerializer
extends Object

Serializer used to translate between app-defined types and the LevelDB store.

The serializer is based on Jackson, so values are written as JSON. It also allows "naked strings" and integers to be written as values directly, which will be written as UTF-8 strings.

Field Summary

Fields

Modifier and Type	Field and Description
protected com.fasterxml.jackson.databind.ObjectMapper	mapper Object mapper used to process app-specific types.

Constructor Summary

Constructors

Constructor and Description
KVStoreSerializer()

Method Summary

Modifier and Type	Method and Description
<T> T	deserialize(byte[] data, Class<T> klass)
byte[]	serialize(Object o)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

mapper

protected final com.fasterxml.jackson.databind.ObjectMapper mapper

Object mapper used to process app-specific types. If an application requires a specific configuration of the mapper, it can subclass this serializer and add custom configuration to this object.

Constructor Detail

KVStoreSerializer

public KVStoreSerializer()

Method Detail

serialize

public final byte[] serialize(Object o)
                       throws Exception

Throws:

Exception

deserialize

public final <T> T deserialize(byte[] data,
                               Class<T> klass)
                        throws Exception

Throws:

Exception