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A ProGuard configuration is provided as part of the Realm library. Generated getters and setters It supports Mac, Windows and Linux. Stetho-Realm is not officially maintained by Realm. Initializing Realm Before you can use Realm in your app, you must initialize it.
This only has to be done once. A good place to initialize Realm is in onCreate on an application subclass: Realms can be local or synchronized. A synchronized Realm uses the Realm Object Server to transparently synchronize its contents with other devices.
In practice, your application works with any Realm, local or synchronized, the same way. Opening Realms Open a Realm by instantiating a new Realm object. The minimal configuration usable by Realm is: To use another configuration, you would create a new RealmConfiguration object: It is important to note that Realm instances are thread singletons, meaning that the static constructor will return the same instance in response to all calls from a given thread.
The default Realm The RealmConfiguration can be saved as a default configuration. Setting a default configuration in your custom Application class makes it available in the rest of your code.
All sync related documentation has been moved to our platform documentation Read-only Realms readOnly is only enforced in the current process. It is still possible for other processes or devices to write to readOnly Realms.
Also, any write transaction against a read-only Realm will throw an IllegalStateException. This includes trying to write the schema, so that must be provided initially by some other source. You can do this by bundling a Realm file in assets and using a readOnly configuration: Dynamic Realms When working with a conventional Realm, the model class is defined using RealmObject subclasses.
This has a lot of benefits with regards to type safety. Dynamic Realms to the rescue! A DynamicRealm is a variant of the conventional Realm that makes it possible to work with Realm data without using RealmObject subclasses. Instead, all access is done using Strings instead of Classes.
Opening a Dynamic Realm uses the same configuration as a conventional Realm but the Dynamic Realm ignores any configured schema, migration, and schema version.
Only use Dynamic Realms when you need that flexibility. Realm instances are reference counted—if you call getInstance twice in a thread, you need to call close twice as well.
This allows you to implement Runnable classes without having to worry about which thread will execute them: For the UI thread, the easiest way is to execute realm. If you need to create a Looper thread other than UI, you can use this pattern: Setup the handlers using the Realm instance Use the Realm instance This means the Realm instance will be periodically updated to the latest version.
This lets you keep your UI constantly updated with the latest content with almost no effort! Holding on to an old version of your data is expensive in terms of memory and disk space, and the cost increases with the number of versions between the one being retained and the latest.
This is why it is important to close the Realm instance as soon as you are done with it in the thread. If you want to check whether your Realm instance has auto-refresh activated or not, use the isAutoRefresh method.
Models Create Realm models by extending the RealmObject base class: The integer types byte, short, int, and long are all mapped to long within Realm.Realm Java is the first database built for mobile.
An alternative to SQLite and ORMs that's fast, easy to use, and open source. Realm Java is the first database built for mobile.
An alternative to SQLite and ORMs that's fast, easy to use, and open source.