Package dev.frostlake.persistence

Class DiskTableDataStore

java.lang.Object

dev.frostlake.persistence.DiskTableDataStore

All Implemented Interfaces:

TableDataStore

public final class DiskTableDataStore
extends Object
implements TableDataStore

TableDataStore over a checkpoint's tables directory — one serialized file per table.

Constructor Summary

Constructors

Constructor	Description
DiskTableDataStore(Path tablesDir)

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)

Methods inherited from class java.lang.Object

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

Constructor Details

DiskTableDataStore

public DiskTableDataStore(Path tablesDir)

Method Details

save

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

Specified by:

save in interface TableDataStore

Throws:

IOException

load

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

Description copied from interface: TableDataStore

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

Specified by:

load in interface TableDataStore

Throws:

IOException

ClassNotFoundException