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• newBuilder(): returns a builder of Protocol Buffer message.
• serialize(): returns a serialized Protocol Buffer message instance.
• deserialize(): returns a deserialized Fragment instance.

Once you implements a new Fragment and a corresponding FragmentSerde, you need to add them to a ${TAJO_HOME}/conf/storage-site.xml file for Tajo to recognize them. 

Tablespace Interface

Tablespace interface has several important methods to generate splits and do storage-specific works to handle table data.

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