Package dev.frostlake.persistence

Interface TableDataStore

All Known Implementing Classes:

DiskTableDataStore, MemoryTableDataStore

public interface TableDataStore

Where per-table row data goes during a state snapshot and comes from during a restore. The disk implementation (DiskTableDataStore) keeps the on-disk checkpoint format; the in-memory one (MemoryTableDataStore) backs DatabaseEngine.cloneInstance(), which never touches the filesystem.

Method Summary

Modifier and Type	Method	Description
TableDataSnapshot	load(String database, String schema, String table)	The saved data for a table, or null when none was recorded (an empty table).
void	save(String database, String schema, String table, TableDataSnapshot data)

Method Details

save

void save(String database,
 String schema,
 String table,
 TableDataSnapshot data)
   throws IOException

Throws:

IOException

load

TableDataSnapshot load(String database,
 String schema,
 String table)
                throws IOException,
ClassNotFoundException

The saved data for a table, or null when none was recorded (an empty table).

Throws:

IOException

ClassNotFoundException