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Release Notes

4.2.0

  • Support for Neo4j 3.5.x (required adaptations for in memory db usage).

4.1.1

Fixed

  • Issue with labels retrieval when using AbstractEmbeddedDBAccess and forcing PlannerStrategy.COST.

4.1.0

New

  • Collections in the Query API are now aware of their component type. This allows expressions like: WHERE.valueOf(path.relations().last().type()).EQUALS("Some_Type") or: WHERE.has(path.nodes().head().label("Some_Label"))

4.0.1

Fixed

  • minHops(0) now works correctly. Previously it was translated to cypher *.. or * respectively for specifying a link's min cardinality to be zero. However in practice this returns a min cardinality of one. Now minHops(0) is translated to cypher *0.. which works correctly. This also changes the behaviour of Domain Query expression DISTANCE(min, max) with a min of 0. This works correctly now but has changed it's behaviour, so you might need to adopt some of your queries.

4.0.0

New

  • Support for Neo4J 3.4.1.

3.9.0

New

  • Support for Neo4J 3.3.1.
  • Set planner strategy globally or individually on a per query basis.
  • New - ...SET(...).byExpression() - to allow formulating the expression in form of Clauses (e.g. CASE .. WHEN ..)

3.8.0

New

  • Support for Neo4J 3.2.2.
  • Shutdown hooks in IDBAccess optional
  • Public constructors for IDBAccess implementations allow more flexibly customizable configurations. Although you are highly encouraged to use DBAccessFactory, you are no longer forced to do so.

3.7.0

New

  • Support for Neo4J 3.1.1.
  • Extended Authentication according to Neo4J's Bolt Driver specification

3.6.0

New

  • Some improvements like simple construction of literal lists.
  • Code compatibility with Java 1.7 (JCypher since 3.5.0 however is built for Java 1.8. This is required, so that JCypher- embedded and- in-memory db access works with Neo4J 3.0.x ).

3.5.0

New

  • Support for Neo4J 3.0.x including the BOLT protocol

3.4.1

Fixed

  • JC.coalesce(...) now returns a JcValue to be applicable in RETURN and WITH clauses.

3.4.0

New

  • Store / retrieve Domain Queries to / from the graph db.
  • JcQueryParameter to be used with Query DSL expressions.

3.4.0-M01

New

Extensions to the Query-DSL API

  • JcCollection: add(...), addAll(...), get(...)
  • JcValue: asNumber(), asString(), asBoolean()
  • Property: values(...)

Changed

There is one API change which is not backward compatible:

In class Property there where two implementations of method value(...): public <E> T value(E value), and public <E> T value(E... value). This was ambiguous in case of a single argument and some language compilers like e.g. for Scala had problems with that. This is now solved by using different method names: public <E> T value(E value), and public <E> T values(E... value). If you are using this API you are required to change the method name(s) in your code.

3.3.1

Fixed

  • Illegal use of parameter-sets with MERGE, now using simple parameters.
  • Added support for all Collection sub classes in domain model.

3.3.0

New

  • Query DSL - DETACH DELETE
  • JSONDBFacade, JSONDomainFacade

Fixed

  • Bug in adding super interface to generic interface model.

3.2.1

Fixed

  • NullpointerException in ResultHandler in certain query scenarios.

3.2.0

New

  • Concurrency support - thread-safe invocation of 'IDomainAccess' and domain queries.
  • Query DSL and Domain Query - String Operators: STARTS_WITH, CONTAINS (CONTAINS_string), ENDS_WITH
  • Query DSL - Support for Literal Maps
  • Upgrade to Neo4j 2.3.1

3.1.0

New

  • Concurrency support - multi client access to the database, optimistic locking.
  • Query DSL - MERGE, ON_CREATE, ON_MATCH
  • Query DSL - CASE, WHEN, ELSE, END

Fixed

  • Bug in close transaction when working with generic graph model.

3.0.0

New

  • Generic Domain Model.

Fixed

  • Domain Query - Select Expression on abstract types produced (in rare scenarios) wrong results.
  • Domain Query - Count Expression within Select Expression on abstract types produced (in rare scenarios) exceptions.
  • Unnecessary rounding of milliseconds when mapping Date instances removed.

2.7.1

Fixed

  • Properties of nodes in generic graph model which are of type short were not stored to the graph database (fix in JSONWriter).
  • Changed signature of store(List ..) to store(List<?> ..) in IDBAccess. Calls to store(..) with lists of types other than Object were not dispatched correctly.

    2.7.0

    New

    • Transaction API.

    2.6.0

    New

    • Works with Neo4j 2.2.2.
    • Support for basic authentication and authorization.

    2.5.0

    New

    • Domain Queries - Query Concatenation.

    Fixed

    • Problem with list parameters in embedded database access.

    2.4.0

    New

    • Domain Queries Part 3 (Collection Expressions - UNION, INTERSECTION) added.
    • Improved support for multiple domains in a single database.

    2.3.0

    New

    • Domain Queries Part 3 (Collection Expressions - SELECT, REJECT, COLLECT) added.

    Fixed

    • Support for Date subclasses (java.sql.Date, java.sql.Time, java.sql.Timestamp)
    • Fixed bug accessing embedded databases

    2.2.0

    New

    • Domain Queries Part 2 (Traversal Expressions) added.
    • Mapping of inner classes - Domain Mapping now also supports inner classes

    2.1.0

    New

    • Domain Queries Part 1 (Predicate Expressions) added.
    • Mapping of java arrays - Domain Mapping now also supports java arrays

    Fixed

    • Guaranteed uniqueness of node labels - Domain Mapping: If classes in different packages have the same name (e.g. Person), the label of mapped nodes is guaranteed to be unique.