Package edu.cnm.deepdive.scalescroller.service

Class ScaleRepository

java.lang.Object

edu.cnm.deepdive.scalescroller.service.ScaleRepository

public class ScaleRepository
extends Object

ScaleRepository contains methods that provide a layer of abstraction above the ScaleDao, and allows for creation, reading, updating, and deleting of attempts.

Constructor Summary

Constructors

Constructor	Description
ScaleRepository(Context context)	The constructor initializes the context, the database, and the dao.

Method Summary

Modifier and Type	Method	Description
Completable	delete(Scale scale)	Deletes a scale record in the database.
LiveData<Scale>	get(long id)	Returns LiveData of a scale, given its id.
LiveData<List<Scale>>	getAll()	Returns LiveData of all scales.
LiveData<List<Scale>>	getAllOrdered()	Returns LiveData of all scales, ordered by difficulty.
LiveData<List<Scale>>	getByMode(Mode mode)	Returns LiveData of all scales with the specified mode.
LiveData<Scale>	getByScaleName(Mode mode, Note tonic)	Returns LiveData of a scale, given its tonic and mode.
LiveData<List<Scale>>	getByTonic(Note tonic)	Returns LiveData of all scales with the specified tonic.
Completable	save(Scale scale)	Creates or updates a scale record in the database.

Methods inherited from class java.lang.Object

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

Constructor Detail

ScaleRepository

public ScaleRepository(Context context)

The constructor initializes the context, the database, and the dao.

Parameters:

context - The application context.

Method Detail

save

public Completable save(Scale scale)

Creates or updates a scale record in the database.

Parameters:

scale - The Scale.

Returns:

A Completable indicating the success or failure of the creation/update.

delete

public Completable delete(Scale scale)

Deletes a scale record in the database.

Parameters:

scale - The Scale.

Returns:

A Completable indicating the success or failure of the deletion.

get

public LiveData<Scale> get(long id)

Returns LiveData of a scale, given its id.

Parameters:

id - The id of the scale.

Returns:

LiveData of a Scale.

getAll

public LiveData<List<Scale>> getAll()

Returns LiveData of all scales.

Returns:

LiveData of a List of Scale.

getAllOrdered

public LiveData<List<Scale>> getAllOrdered()

Returns LiveData of all scales, ordered by difficulty.

Returns:

LiveData of a List of Scale.

getByScaleName

public LiveData<Scale> getByScaleName(Mode mode,
                                      Note tonic)

Returns LiveData of a scale, given its tonic and mode.

Parameters:

mode - The mode of the scale.

tonic - The tonic of the scale.

Returns:

LiveData of a Scale.

getByTonic

public LiveData<List<Scale>> getByTonic(Note tonic)

Returns LiveData of all scales with the specified tonic.

Parameters:

tonic - The tonic of the scale.

Returns:

LiveData of a List of Scale.

getByMode

public LiveData<List<Scale>> getByMode(Mode mode)

Returns LiveData of all scales with the specified mode.

Parameters:

mode - The mode of the scale.

Returns:

LiveData of a List of Scale.