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Is there any restriction when using fetch=FetchType.LAZY ?

object declaration @OneToMany(fetch=FetchType.EAGER, cascade = CascadeType.ALL) private ... @OneToMany(fetch=FetchType.LAZY, cascade = CascadeType.ALL) private LinkedList<OdbObject

Foreign key constraint issue

private long id; @ManyToOne(optional = false, cascade = {}) @JoinColumn(name="PARENT_ID", nullable ... = parent;} } @Entity public class Parent { @Id @GeneratedValue private long id; @OneToMany(cascade

Lazy loading does not work - crud takes long

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

OEM enhancing

Hello, I have question regarding OEM licence enhancement. @OneToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL) private SomeClass[] props; @OneToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL) private Map<String, SomeClass2> vars = new TreeMap<String, SomeClass2

Extra uninitialised entities spawned on merge()

ArrayList<Element>();         @OneToMany(mappedBy = "owner",         cascade = CascadeType ... , whereas others might thown an exception immediately. The merge() operation can be optionally cascaded in these cases

Upgrade to 2.4.1_01

our code for 2.3.7_18, we had @OneToOne(cascade=CascadeType.ALL, fetch=FetchType.EAGER ... .visitRefs(CLT.java:160) at com.objectdb.o.TVS.j(TVS.java:169) at com.objectdb.o.TVS.cascade(TVS.java

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

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

_PersistenceException: Type is not found on getSingleResult.

", cascade = CascadeType.ALL, orphanRemoval = true)     private List<Acudiente> acudientes;     public

Problem on JPA Merge Entity.

Hello, I have a problem with the EntityManager.merge() function. I set a property value of an entity (statement) with an other entity (newSingleConstraint). newSingleValue is already persisted. I do this myself (no use of cascade because sometimes the newSingleValue is already in database

Unexpected Exception during commit

.j(TVS.java:169) at com.objectdb.o.TVS.cascade(TVS.java:156) at com.objectdb.o.STA ... to the stack trace, during commit an attempt to cascade persist through an inverse (mapped by) collection

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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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