CODEWITHSUNDEEP
androidrealm
Nishant Verma
Nishant Verma

Reputation: 120

reuse objects removed from realm database

I want to reuse realm objects which are once removed from database.

Lets say, I have removed one object from database. 

Story story = realm.where(Story.class).equalTo("id","id").findFirst();

story.deleteFromRealm();

Now, I want to pool the removed object and want to reuse it with different "id"(primary key) instead of creating a new object every single time.

The current implementation does not allow me to do this and throws an exception.

My question is, is there another way to achieve the same thing. If not, should this be a feature added to realm.

The requested code which throws the exception 

Story story1 = StoryObjPool.getInstance().getStory();
            if(story1 != null){
                story1.setId(1234);
            }

The exception 

java.lang.IllegalStateException: This Realm instance has already been closed, making it unusable.


at io.realm.BaseRealm.checkIfValid(BaseRealm.java:348)                                                                              
at io.realm.StoryRealmProxy.realmSet$id(StoryRealmProxy.java:177)                                                             
at com.hn.nishant.nvhn.model.Story.setId(Story.java:98)

Upvotes: 1

Views: 321

Answers (1)

Linh
Linh

Reputation: 60913

Story story = realm.where(Story.class).equalTo("id","id").findFirst();
// create standalone object that not reference to realm
Story stoyStandalone = realm.copyFromRealm(story);

story.deleteFromRealm();

// save standalone object to realm
stoyStandalone.setId(...);
realm.copyToRealm(stoyStandalone);

Upvotes: 2

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