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16

Updating Entities

(itemData -> new ReadOnlyObjectWrapper<Double>(itemData.getValue().getPaygrade().getRate())); pay.setCellFactory(c -> new TableCell<Employee, Double>() { @Override public void updateItem(final Double ... ... DragonRulerX Jared Hinze Just tried this... public static void modifyPaygradeRate(double oldRate, double
14

significant performance decrease

<String,String>(); @Index public Integer type; public Double usedCustomObjectTypeVersion; public Double usedStandardObjectTypeVersion; public Double usedSolutionObjectTypeVersion ... and repeating (and only the parameter values change). support Support just to double-check
14

Performance issues on aggregate query

, String> systemDictionary = new HashMap<String,String>(); @Index public Integer type; public Double usedCustomObjectTypeVersion; public Double usedStandardObjectTypeVersion; public Double ... final long serialVersionUID = 1L; @Id @GeneratedValue public long id; @Index public Double
10

Cascade type annotaion on an embeddable type

Assume we have the following classes: @Entity public class Restaurant { /* @Embedded */ private Location location;     private int phoneNumber; } @Embeddable public class Location { private double latitude; private double longitude; } According to the documentation
10

Visibility of changes in Transaction is not visible to a JPA QL Query

.newTotal + " items as expected = " + (howMany + oldAmount));    }    double which = oldAmount + (((double)howMany) / 2);    results.item = bean.findItem((int)which); //bean merely passes
10

Can a Set<E> be a foreign key?

double cellSize;     private Set<Long> cellHeldCharacters; And I want to know if I ... ;     private double cellSize;     @ForeignKey     private Set<Long> cellHeldCharacters; Reymp Sandeep H
4

sqrt(x)

Method javax.persistence.criteria.CriteriaBuilder Expression<Double> sqrt( Expression<?> x ) Create an expression that returns the square root of its argument. Parameters: x - expression Returns: square root Since: JPA 2.0
2

Database access error , Doctor hanging on trying to repair, production shutdown at our biggest customer

2.7.1. You wrote that the system is using version 2.7.1_01. Could you please double check ... queries that have been solved for us with that version. We double checked the version and also use
2

Best practise loading big data

: Double check that you changed the cache sizes in the correct configuration file. Please read ... described before: - using a configuration with the attached configuration (double checked) - one open
0

providedDoubleField(pc, field, currentValue)

Method javax.jdo.spi.StateManager void providedDoubleField( PersistenceCapable pc, int field, double currentValue ) The value of the field requested to be provided to the StateManager. Parameters: pc - the calling PersistenceCapable instance field - the field number currentValue - the current value of the field Since: JDO 1.0

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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