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5

Performance and memory usage of queries

{   @OneToMany(cascade = CascadeType.ALL)   private List<MyEntityElement> list = new ArrayList
5

Removing an entity throws exception

; private String name; private String surname; @OneToOne(cascade=CascadeType.ALL, fetch
5

Upgrade to 2.4.1_03

.o.TVS.cascade(TVS.java:156) at com.objectdb.o.TVS.g(TVS.java:105) at com.objectdb.o.TVS.g(TVS
5

how to query by properties of onetomany relations? (Error 990)

    public static final class Foo {         @OneToMany(cascade=CascadeType.PERSIST)         private Set
5

virtual servers and one file

="warning" /> <cache ref="weak" level2="256mb" /> <persist serialization="false" /> <cascade-persist
5

Upgrade to 2.4.1_02

.cascade(TVS.java:156) at com.objectdb.o.TVS.g(TVS.java:105) at com.objectdb.o.TVS.g(TVS.java:93
5

InternalException when reading a HashMap

.o.TVS.cascade(TVS.java:157) at com.objectdb.o.TVS.b(TVS.java:106) at com.objectdb
5

Different behavior with persist() and queried instances?

Hi, We have a simple class that by itself contains (among others) a property pointing to a collection: class Bla {     @OneToMany(cascade = CascadeType.ALL)     private List<AttributeEntity> metaAttributes = new ArrayList<AttributeEntity>(); } Now we do a simple em.persist(BlaInstance
1

[ObjectDB 2.2.6_02] Unexpected exception (Error 990) at com.objectdb.o.OBC.aJ(OBC.java:961)

.java:1143) at com.objectdb.o.TVS.j(TVS.java:169) at com.objectdb.o.TVS.cascade(TVS.java:156) at com
1

ObjectDB 2.3.3

with cascading persist after updating the database and before commit (issue #544). Fixed NullPointerException

Getting Started

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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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