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Welcome to the Joiner wiki!

The main goal of Joiner is to make QueryDSL even more useful. Joiner is beneficial for applications with complex domain model, it provides:

• a simple way to add joins to the QueryDSL queries at build or runtime
• helps to resolve alias uniqueness in the queries
• simple fetching of attributes, which are present on child entities only (for inheritance)
• separating QueryDSL JPAQuery and query parameters

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For example:
List<Group> groups = groupRepository.find(new Q<Group>()
.joins(QGroup.group.users, QSuperUser.superUser.key, QNormalUser.normalUser.passwords)
.where(QKey.key.name.ne("bad_key")));

Group has collection of Users, there are multiple children of class User. This code will add joins for users and nested attributes on users.