January 2016
Intermediate to advanced
240 pages
4h 42m
English
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Parent-child relationships
Similar to nested types, parent-child relationships also allow you to relate different entities together but they differ in the implementation and behavior. Unlike nested documents, they are not present within the same document, rather parent-child documents are completely separate documents. They follow the one to many relationship principle and allow you to define one type as parent and one or more as the child type.
Creating parent-child mappings
To create a parent-child mapping, you just need to specify which type should be the parent of the child type. You do not need to define anything extra in the parent type mapping but before indexing the data in the child type, you need to specify in the child's mapping who will ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.