Class LLDatabaseSQLite

java.lang.Object

com.io7m.looseleaf.database.sqlite.LLDatabaseSQLite

All Implemented Interfaces:

LLDatabaseType, Closeable, AutoCloseable

public final class LLDatabaseSQLite
extends Object
implements LLDatabaseType

A database based on SQLite.

Method Summary

Modifier and Type	Method	Description
void	close()
long	dataSizeApproximate()
Optional<String>	get(LLKeyName key)	Get the value associated with the given key, if any.
Map<LLKeyName,String>	getAll()
boolean	isClosed()
long	keyCountApproximate()
static LLDatabaseType	open(Path file)	Open an SQLite database.
Map<LLKeyName,String>	readUpdateDelete(LLDatabaseRUD rud)	Atomically read, update, and delete values in the database.

Methods inherited from class java.lang.Object

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

Method Details

open

public static LLDatabaseType open(Path file)
                           throws IOException

Open an SQLite database.

Parameters:

file - The database file

Returns:

The database

Throws:

IOException - On errors

dataSizeApproximate

public long dataSizeApproximate()
                         throws IOException

Specified by:

dataSizeApproximate in interface LLDatabaseType

Returns:

The approximate size of the database in bytes

Throws:

IOException - On errors

keyCountApproximate

public long keyCountApproximate()
                         throws IOException

Specified by:

keyCountApproximate in interface LLDatabaseType

Returns:

The approximate number of keys in the database

Throws:

IOException - On errors

isClosed

public boolean isClosed()

Specified by:

isClosed in interface LLDatabaseType

Returns:

true if the store has been closed

readUpdateDelete

public Map<LLKeyName,String> readUpdateDelete(LLDatabaseRUD rud)
                                       throws IOException

Description copied from interface: LLDatabaseType

Atomically read, update, and delete values in the database.

Specified by:

readUpdateDelete in interface LLDatabaseType

Parameters:

rud - The RUD operation

Returns:

The read keys

Throws:

IOException - On errors

get

public Optional<String> get(LLKeyName key)
                     throws IOException

Description copied from interface: LLDatabaseType

Get the value associated with the given key, if any.

Specified by:

get in interface LLDatabaseType

Parameters:

key - The key

Returns:

The value, if any

Throws:

IOException - On errors

getAll

public Map<LLKeyName,String> getAll()
                             throws IOException

Specified by:

getAll in interface LLDatabaseType

Returns:

The entire database

Throws:

IOException - On errors

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable