Getting Started with OrientDB by Unknown

Author:Unknown
Format: epub

Embedded relationships

The embedded 1:1 relationship is realized by embedding a document in a field of its owner. The embedded documents have no RIDs and follow the life cycle of the embedding document. To realize a 1:n embedded relationship, you can use one of the embedded container field type, that is, embeddedlist, embeddedset, or embeddedmap (if you want to associate a key to any embedded record). In our blog example, we can imagine that the comments of an article are embedded into the article itself. In fact, if a post is deleted, the comments also should be deleted. In our case we can do something as follows:

orientdb> create property Post.comments embeddedlist Property created successfully with id=3

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