Based on Ascend.
- Enable annotation processing for Lombok.
- Create a config.yaml in the working directory with the server state:
server_state: DEBUG. Debug will give you the developer rank on login and fill your bank with various items. It will also give you printouts by default.
::debugto toggle debug messages.::combatstatsto toggle combat statistic messages.
SqlQuery is the class you use to execute all sql statements and queries.
// Anonymous class
new SqlQuery<Object>() {
@Override
public Object execute(DatabaseManager context, Connection connection) throws SQLException {
// do queries on connection here
return null;
}
}
// Functional interface
(context, connection) -> {
return null;
});
To actually execute the query you created you call the Server's DatabaseManager: Server.getDatabaseManager().execute(DatabaseCredentials, SqlQuery).
The database credentials are usually stored in the config.yaml (ServerConfiguration): Server.getConfiguration().getLocalDatabase(). To use the embedded database
(which doesn't require a local sql server, it runs in memory) you can call: Server.getEmbeddedDatabase().
Say you wanted to execute a query and use the returned data on a player in some fashion, you would do this:
// As of July 10th 2021 you can use execute alone to access the local
// (non-embedded) sql database which is configured in config.yaml as
// a DatabaseConfiguration named local_database
Server.getDatabaseManager().execute((context, connection) -> {
// Notice here we call another sql query, this will share the connection
List<String> myStrings = new SqlQueryImplementation().execute(context, connection);
// We have to queue this because we aren't on the main thread and the player
// will throw an exception for packets sent from outside that thread.
// Note: this will sometimes require a locking mechanism to prevent the player from moving or leaving
// that isn't always neccesary though.
player.addQueuedAction(plr -> {
myStrings.forEach(it -> plr.sendMessage(it));
});
}));
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