spring-data-examples/jpa/query-by-example/README.md

Spring Data JPA - Query-by-Example (QBE) example

This project contains samples of Query-by-Example of Spring Data JPA.

Support for Query-by-Example

Query by Example (QBE) is a user-friendly querying technique with a simple interface. It allows dynamic query creation and does not require to write queries containing field names. In fact, Query by Example does not require to write queries using JPA-QL at all.

An Example takes a data object (usually the entity object or a subtype of it) and a specification how to match properties. You can use Query by Example with JPA Repositories.

This example contains a test class to illustrate Query-by-Example with a Repository in UserRepositoryIntegrationTests.