Package com.djrapitops.plan.storage.database

Interface Database

All Known Implementing Classes:

AbstractDatabase, MySQLDB, SQLDB, SQLiteDB

public interface Database

Interface for interacting with a Plan SQL database.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static enum	Database.State	Possible State changes: CLOSED to PATCHING (Database init), PATCHING to OPEN (Database initialized), OPEN to CLOSING (Database closing), CLOSING to CLOSED (Database closed), PATCHING to CLOSED (Database closed prematurely)

Method Summary

Modifier and Type	Method	Description
void	close()
CompletableFuture<?>	executeTransaction(Transaction transaction)	Execute an SQL Transaction.
default Sql	getSql()
Database.State	getState()
DBType	getType()	Used to get the DBType of the Database
void	init()	Initializes the Database.
<T> T	query(Query<T> query)	Execute an SQL Query statement to get a result.
default <C extends Collection<T>, T> C	queryCollection(String sql, RowExtractor<T> rowExtractor, Supplier<C> collectionConstructor, Object... parameters)
default <T> List<T>	queryList(String sql, RowExtractor<T> rowExtractor, Object... parameters)
default <K, V> Map<K,V>	queryMap(String sql, MapRowExtractor<K,V> rowExtractor, Object... parameters)
default <M extends Map<K, V>, K, V> M	queryMap(String sql, MapRowExtractor<K,V> rowExtractor, Supplier<M> mapConstructor, Object... parameters)
default <T> Optional<T>	queryOptional(String sql, RowExtractor<T> rowExtractor, Object... parameters)
default <T> Set<T>	querySet(String sql, RowExtractor<T> rowExtractor, Object... parameters)

Method Details

init

void init()

Initializes the Database.

Queries can be performed after this request has completed all required transactions for the database operations.

Throws:

DBInitException - if Database fails to initiate.

close

void close()

query

<T> T query(Query<T> query)

Execute an SQL Query statement to get a result.

This method should only be called from an asynchronous thread.

Type Parameters:

T - Type of the object to be returned.

Parameters:

query - QueryStatement to execute.

Returns:

Result of the query.

queryOptional

default <T> Optional<T> queryOptional(String sql,
 RowExtractor<T> rowExtractor,
 Object... parameters)

queryList

default <T> List<T> queryList(String sql,
 RowExtractor<T> rowExtractor,
 Object... parameters)

querySet

default <T> Set<T> querySet(String sql,
 RowExtractor<T> rowExtractor,
 Object... parameters)

queryCollection

default <C extends Collection<T>,
T> C queryCollection(String sql,
 RowExtractor<T> rowExtractor,
 Supplier<C> collectionConstructor,
 Object... parameters)

queryMap

default <K,
V> Map<K,V> queryMap(String sql,
 MapRowExtractor<K,V> rowExtractor,
 Object... parameters)

queryMap

default <M extends Map<K,
V>,
K,
V> M queryMap(String sql,
 MapRowExtractor<K,V> rowExtractor,
 Supplier<M> mapConstructor,
 Object... parameters)

executeTransaction

CompletableFuture<?> executeTransaction(Transaction transaction)

Execute an SQL Transaction.

Parameters:

transaction - Transaction to execute.

Returns:

Future that is finished when the transaction has been executed.

getType

DBType getType()

Used to get the DBType of the Database

Returns:

the DBType

See Also:

• DBType

getSql

default Sql getSql()

getState

Database.State getState()