Fast Object Database for Java - with JPA/JDO support

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1

significant performance decrease

="false" /> <cascade-persist always="auto" on-persist="false" on-commit="true" /> (); @OneToMany(fetch=FetchType.LAZY,cascade=CascadeType.REMOVE) public List ... =FetchType.LAZY,cascade=CascadeType.REMOVE) public List supportingData = new
1

NullPointerException when using multithreading

; @Id private String secondId; @OneToOne(cascade=CascadeType.ALL) private HashMap myMap; } @Embeddable public class EmbeddableA { @OneToOne(cascade ... EmbeddableB { @OneToOne(cascade=CascadeType.ALL) private HashMap myMap; } I'm
1

A lot of ENT and SIV instances which are not cleared by GC

.o.CLT.visitRefs(CLT.java:156) at com.objectdb.o.TVS.j(TVS.java:169) at com.objectdb.o.TVS.cascade ... ) I don't see any differences of this entities from another ones. Also I've added cascade=CascadeType ... Myachikov Following your report we found and fixed (in build 2.6.1_01) a bug in cascading detach
1

mappedBy problem

Lao There was a bug in cascading operations through inverse (mapped by) fields - thank you for your report. Build 07 should fix this problem. Please try it. You will have to add cascade=CascadeType.PERSIST to the mapped by field, unless you have global persist cascade enabled. support Support Using
1

Left join fetch behaviour doesn't retrieve children?

));         }                 @ManyToMany(targetEntity = MyEntityChild.class, cascade = CascadeType ... + various cascade combinaison + merge / persist parents and childs + add indexes ) to bere sure all is fine ... ; } private MyEntityChild entityChild = null;   @OneToOne(targetEntity = MyEntityChild.class, cascade
1

@OneToMany(fetch = FetchType.LAZY) list is always null

") private int id; @OneToMany(fetch = FetchType.LAZY, cascade = CascadeType.ALL) private List ... and setters } public class Parent { // ...id @OneToOne(fetch = FetchType.LAZY, cascade ... .AUTO) private int id; @OneToOne(fetch = FetchType.LAZY, cascade = CascadeType
1

Remove not working

) at com.objectdb.o.TVS.j(TVS.java:169) at com.objectdb.o.TVS.cascade(TVS.java:156) at com.objectdb.o ... A { @OneToMany(mappedBy="a", cascade=CascadeType.REMOVE) private List bs ... is thrown because the removal of A is cascaded to removal of a B instance that has already been removed
1

500Mb ObjectDb database opening issue

500Mb ObjectDb database opening issue
1

Cannot sort descending, when ordering by caluculated float in a method

{         @OneToMany(cascade=CascadeType.PERSIST)         private List itemList = new ArrayList ... = "invoice", fetch= FetchType.EAGER, orphanRemoval=true, cascade= CascadeType.ALL) private List
1

Lazy loading does not work - crud takes long

, generator = "PROJECT_SEQUENCE")     private Long id;     ..     ..     @OneToMany(cascade ... datapoint;         @OneToMany(cascade = CascadeType.ALL, orphanRemoval = true, mappedBy

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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