Elasticsearch Object Mapping and Repositories
Learn about documents and repositories through the Spring Data Elasticsearch framework.
In Spring Data Elasticsearch, documents are Java objects mapped to JSON structures in Elasticsearch indexes. These objects represent data entities and are annotated with metadata for indexing and querying. Spring Data Elasticsearch simplifies document management, enabling seamless interaction between Java objects and Elasticsearch’s powerful indexing and search capabilities.
Documents
Let’s look at the same example of the Book
and Author
POJOs, which reference the book
and author
database documents and convert them into Elasticsearch document classes.
The Book
document
Let’s learn a few handy annotations to transform a POJO into an Elasticsearch document. The most common annotations are @Document
and @Id
:
-
The
@Document
annotation allows us to map a POJO to a database document via the underlying data access layer. -
The
@Id
...
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