About string

api-jdo

Query.SQL

The string constant used as the first argument to PersistenceManager.newQuery(String,Object) to identify that the created query should use SQL semantics.(Static Field of javax.jdo.Query)

 
api-jpa

javax.persistence.AttributeOverride

Used to override the mapping of a Basic (whether explicit or default) property or field or Id property or field.(Annotation of JPA)

 
api-jpa

trim(t, x)

Create expression to trim character from both ends of a string.(Method of javax.persistence.criteria.CriteriaBuilder)

 
manual

[ODB1] Chapter 7 - JDOQL Queries

Explains how to use JDOQL, the Java/JDO Query Language.... forms: Query newQuery ( Extent candidates, String filter ) Query newQuery ( Class cls, String filter ) In the first form, the candidate class is ...

 
issue

com.objectdb.o.InternalException: null

After an error in a @PrePersist method in an Entity class, the database stopped working. Fortunately this was in development, but still worrying! The Entity class ... Date dateOfBirth = null ; private String firstName = null ; private String lastName = null ; private String personalNumber = ...

 
api-jpa

javax.persistence.PersistenceException

Thrown by the persistence provider when a problem occurs.(Exception of JPA)

 
api-jpa

javax.persistence.EntityExistsException

Thrown by the persistence provider when EntityManager.persist(Object) is called and the entity already exists.(Exception of JPA)

 
doc

java.lang.Exception

The class Exception and its subclasses are a form of Throwable that indicates conditions that a reasonable application might want to catch.(Exception of java.langException Exception)

 
forum_thread

NoSuchFieldError: __odbTracker on NetBeans 7.3 + JBoss 7.1.1

When using inheritance throw exception java.lang.NoSuchFieldError: __odbTracker on NetBeans 7.3 + Jboss 7.1.1, but works fine on NetBeans 7.3 + GlassFish 3.1    ... List<City> cities ;   private String name ;   public String getName ( ) { return name ; ...

 
api-jdo

construct(className, keyString)

Construct an instance of the parameter class, using the keyString as an argument to the constructor.(Static Method of javax.jdo.spi.JDOImplHelper)