Saving Data on Android

Tables and Entities
 section of the previous chapter.
2. The 
@Relation
 annotation accepts at least two parameters:
•
parentColumn
 indicates the primary key of the parent entity.
•
entityColumn
 indicates the field (usually the foreign key) on this entity that maps 
to the primary key of the parent entity.
3. The 
answers
 list will contain the 
Answer
 objects related to the 
question
 
property.
Saving Data on Android
Chapter 7: Mastering Relations
raywenderlich.com
128

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Note:
 It is important to remember that the 
@Relation
 annotation can only be 
used in Pojo classes. Entities in Room can't have relations.
And that's it! 
build and run
 the app again to verify everything is still working fine.
The final DroidQuiz application
While the app has not visually changed, you now have a good foundation about how 
Room works and your Database is almost ready.
In the next chapter, you will learn how to interact with your 
Entities
 by creating 
your first