com.jdroid.java.repository
Interface Repository<T extends Identifiable>

Type Parameters:

T - This is a parameterized interface.

All Known Subinterfaces:

RandomRepository<T>

All Known Implementing Classes:

InMemoryRepository

public interface Repository<T extends Identifiable>

Interface that all repositories must adhere to. It provides basic repository functionality.

Method Summary

void	add(T item) Adds an Identifiable to the repository.
void	addAll(Collection<T> items) Adds a collection of Identifiables to the repository.
List<T>	findByField(String fieldName, Collection<? extends Object> values)
T	get(Long id) Retrieves an Identifiable from the repository according to an id or null in case no Identifiable with the given id is not found
List<T>	getAll() Obtains a list containing all the Identifiables in the repository
List<T>	getAll(List<Long> ids)
Long	getSize()
T	getUniqueInstance()
Boolean	isEmpty()
void	remove(Long id) Removes the Identifiable with the id
void	remove(T item) Removes an Identifiable from the repository.
void	removeAll() Removes all the Identifiables that the repository has.
void	removeAll(Collection<T> items)
void	replaceAll(Collection<T> items) Replaces all the Identifiables in the repository by new ones.
void	update(T item) Update an Identifiable on the repository.

Method Detail

get

T get(Long id)

Retrieves an Identifiable from the repository according to an id or null in case no Identifiable with the given id is not found

Parameters:

id - the id for the Identifiable to retrieve

Returns:

the Identifiable retrieved.

add

void add(T item)

Adds an Identifiable to the repository.

Parameters:

item - The Identifiable to add.

addAll

void addAll(Collection<T> items)

Adds a collection of Identifiables to the repository.

Parameters:

items - The Identifiables to add.

update

void update(T item)

Update an Identifiable on the repository.

Parameters:

item - The Identifiable to update.

remove

void remove(T item)

Removes an Identifiable from the repository.

Parameters:

item - The Identifiable to remove

removeAll

void removeAll()

Removes all the Identifiables that the repository has.

removeAll

void removeAll(Collection<T> items)

findByField

List<T> findByField(String fieldName,
                    Collection<? extends Object> values)

Parameters:

fieldName -

values -

Returns:

items the items with the fieldName that match with values.

getAll

List<T> getAll()

Obtains a list containing all the Identifiables in the repository

Returns:

the list of Identifiables

getAll

List<T> getAll(List<Long> ids)

Parameters:

ids -

Returns:

All the items with the ids

remove

void remove(Long id)

Removes the Identifiable with the id

Parameters:

id - The Identifiable id to be removed

isEmpty

Boolean isEmpty()

Returns:

If the repository has data or not

getSize

Long getSize()

replaceAll

void replaceAll(Collection<T> items)

Replaces all the Identifiables in the repository by new ones.

Parameters:

items - The new Identifiables to replace the old ones.

getUniqueInstance

T getUniqueInstance()

Returns:

The unique instance