Java Discord Database

Discord Repository

Method	Description
save	saves entity in table
saveAll	saves array of entities in table
findById	if entity with specified ID exists, returns it in other case method returns empty Optional
findAll	returns all entities
existsById	returns either true if entity with specified ID exists in database, or false if it does not
count	returns number of entities
deleteById	removes entity with specified ID
delete	removes passed entity from table
deleteAll	removes passed array of entities, if no arguments are passed it clears entire table
executeQuery	takes Query object and returns objects based on its content

Query syntax

public List<User> getByName(){
    return executeQuery(
            new Query<User, User>()
                    .SELECT("*")
                    .WHERE("name=Adam")
                    .AND()
                    .WHERE("age>30")
    );
}

Customizable column names

@Column(name = "some other name")
private String surname;