Package com.omarigrant.budget.dao.contract

Interface Dao<T>

Type Parameters:

T - Generic for class implementing contract A contract for Data Access Object, for interacting with the repository for the database

All Known Implementing Classes:

BudgetDao, UserDao

public interface Dao<T>

Method Summary

Modifier and Type	Method	Description
List<T>	all()	Return all items from database
void	delete(long id)	Delete item from database
Optional<T>	get(long id)	Return one item from database
void	save(T item)	Save item to database

Method Details

get

Optional<T> get(long id)

Return one item from database

Parameters:

id - id to find item by

Returns:

Optional object of item

all

List<T> all()

Return all items from database

Returns:

A list of items

save

void save(T item)

Save item to database

Parameters:

item - item to save

delete

void delete(long id)

Delete item from database

Parameters:

id - id of item to be deleted