Package de.hirola.sportslibrary

Class DataRepository

java.lang.Object

de.hirola.sportslibrary.DataRepository

public final class DataRepository
extends Object

Copyright 2021 by Michael Schmidt, Hirola Consulting This software us licensed under the AGPL-3.0 or later. Adds a persistence layer, encapsulating the actual data storage technology used.

Since:

1.1.1

Author:

Michael Schmidt (Hirola)

Constructor Summary

Constructors

Constructor	Description
DataRepository(@NotNull String packageName, @Nullable DatastoreDelegate delegate)	Create the local datastore access layer.

Method Summary

Modifier and Type	Method	Description
void	add(PersistentObject object)	Adds a new object to the local datastore.
List<? extends PersistentObject>	findAll(Class<? extends PersistentObject> fromType)	Get all objects with a given type.
boolean	isEmpty()	Get a flag to determine if the datastore is empty.
boolean	isOpen()	Get a flag to determine if the datastore is open.
void	remove(PersistentObject object)	Removes an existing object from the local datastore.
void	update(PersistentObject object)	Update an existing object on the local datastore.

Methods inherited from class java.lang.Object

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

Constructor Detail

DataRepository

public DataRepository(@NotNull
                      @NotNull String packageName,
                      @Nullable
                      @Nullable DatastoreDelegate delegate)
               throws SportsLibraryException

Create the local datastore access layer.

Parameters:

packageName - of the app using this library

delegate - to inform about datastore events, can be null

Throws:

SportsLibraryException - if the datalayer could not initialize

Method Detail

isEmpty

public boolean isEmpty()
                throws SportsLibraryException

Get a flag to determine if the datastore is empty. Some templates are required, which must be imported at the first start.

Returns:

A flag to determine if the datastore is empty

Throws:

SportsLibraryException - if an error occurred

isOpen

public boolean isOpen()

Get a flag to determine if the datastore is open.

Returns:

A flag to determine if the datastore is open.

add

public void add(PersistentObject object)
         throws SportsLibraryException

Adds a new object to the local datastore.

Parameters:

object - to be added

Throws:

SportsLibraryException - if an error occurred while adding

update

public void update(PersistentObject object)
            throws SportsLibraryException

Update an existing object on the local datastore.

Parameters:

object - to be updated

Throws:

SportsLibraryException - if an error occurred while updating

remove

public void remove(PersistentObject object)
            throws SportsLibraryException

Removes an existing object from the local datastore.

Parameters:

object - to be removed

Throws:

SportsLibraryException - if an error occurred while removing

findAll

public List<? extends PersistentObject> findAll(Class<? extends PersistentObject> fromType)
                                         throws SportsLibraryException

Get all objects with a given type.

Parameters:

fromType - of object to get

Returns:

A list of objects with the given type.

Throws:

SportsLibraryException - if an error occurred while getting