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@michael-simons michael-simons released this 15 Mar 16:51
· 1086 commits to main since this release
2021.1.0
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michael-simons Michael Simons
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Learn about vigilant mode.

2021.1.0 comes with a ton of new features and a handful of breaking changes. Fear not, the breaking changes are resolvable by recompiling your application. We turned Node, Relationship and Property into interfaces and provide now NodeBase and RelationshipBase so that you can use them to build a static meta-model of your application. A PropertyBase might follow.

Find out everything about the new possibility to define a static meta model in the manual. The manual also includes a major part about the two new modules we offer: org.neo4j:neo4j-cypher-dsl-codegen-core and org.neo4j:neo4j-cypher-dsl-codegen-sdn6. neo4j-cypher-dsl-codegen-core provides the infrastructure necessary to build code generators for creating a domain model following our recommendation and neo4j-cypher-dsl-codegen-sdn6 is a first implementation of that: A Java annotation processor that can be added to any Spring Data Neo4j 6 project in version 6.0.6 or higher. It will find your annotated domain classes and turn them into a model you can use to build queries.

Last but not least: We added support for some expressions of the more generic QueryDSL. This will require com.querydsl:querydsl-core on the class path but only if you decide to call Cypher#adapt(foreignExpression). This is a feature that is driven by Spring Data Neo4j 6.1 in which we build upon this to provide a QuerydslPredicateExecutor. Find more in this section of the manual.

🚀 Features

  • GH-154 - Make Node and Relationship extendable.
  • GH-155 - Provide infrastructure for generating a static meta model.
  • GH-156 - Create an annotation processor for Spring Data Neo4j 6.
  • GH-167 - Add support for some Query-DSL expressions.
  • Introduce a statement context for allowing anonymous parameters (use Cypher#anonParameter() to define a parameter with a value but without a name. The name will be accessible on the statement after rendering).
  • Make rendering of constants as parameters configurable.
  • Allow specification of the direction while creating a sort item.
  • Introduce an interface for Property.

📖 Documentation

  • GH-152 - Document usage of PatterElement in tests.
  • GH-164 - Improve public extendable API and add documentation.

🐛 Bug Fixes

  • Fix SymbolicName#toString.
  • Clear visited name cache after single queries.

🧹 Housekeeping

  • GH-165 - Simplify poms.
  • GH-166 - Improve Cypher.literalOf.
  • Exclude all example projects from release.
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