ru.sstu.dao

Class EnumDao<T extends Serializable>

java.lang.Object

ru.sstu.dao.EnumDao<T>

Type Parameters:

T - concrete entity class

All Implemented Interfaces:

ReadOnlyDao<T>

public abstract class EnumDao<T extends Serializable>
extends Object
implements ReadOnlyDao<T>

EnumDao class is most common DAO for enumerations. It relies on object id is its number (starting with 0) in enumeration.

Since:

DAO 1.0

Author:

Denis_Murashev

Constructor Summary

Constructors

Constructor and Description
EnumDao()

Method Summary

Methods

Modifier and Type	Method and Description
List<T>	find() Provides all entities in the system.
abstract T[]	findAll() Provides array of all objects in enumeration.
T	findById(Serializable id) Provides entity with given id.

Methods inherited from class java.lang.Object

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

Constructor Detail

EnumDao

public EnumDao()

Method Detail

find

public List<T> find()

Description copied from interface: ReadOnlyDao

Provides all entities in the system.

Specified by:

find in interface ReadOnlyDao<T extends Serializable>

Returns:

list of entities

findById

public T findById(Serializable id)

Description copied from interface: ReadOnlyDao

Provides entity with given id.

Specified by:

findById in interface ReadOnlyDao<T extends Serializable>

Parameters:

id - entity id

Returns:

entity

findAll

public abstract T[] findAll()

Provides array of all objects in enumeration.

Returns:

array of all objects