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30

Pre-detach loading: retrieval by navigation not working in if statement

a simple Boolean property 'value'. - A LightingZone has a property 'v_NLA' which is a "deep" Float value ... wraps a simple Float property 'value'. - (Also, the getL_LightingZone() below is a a generic List ... , it is failing to load the test within the indicated if statement: @Transient public Float getNLA_m2
7

toFloat(number)

Method javax.persistence.criteria.CriteriaBuilder Expression<Float> toFloat( Expression<?> number ) Typecast. Returns same expression object. Parameters: number - numeric expression Returns: Expression<Float> Since: JPA 2.0
0

javax.jdo.spi.PersistenceCapable

. For example, an ObjectId class that has three key fields (int id, String name, and Float salary ... , an ObjectId class that has three key fields (int id, String name, and Float salary) would have the method
0

javax.jdo.spi.PersistenceCapable.ObjectIdFieldManager

: the value of the field to be stored into the ObjectId. Since: JDO 1.0 float fetchFloatField(int ... - the value of the field from the ObjectId. Since: JDO 1.0 void storeFloatField(int fieldNumber, float
0

javax.jdo.spi.JDOImplHelper

that has three key fields ( int id, String name, and Float salary) would have the method generated: void ... , and Float salary) would have the method generated: void jdoCopyKeyFieldsToObjectId (Object oid
0

getFloatField(pc, field, currentValue)

Method javax.jdo.spi.StateManager float getFloatField( PersistenceCapable pc, int field, float currentValue ) Return the value for the field. Parameters: pc - the calling PersistenceCapable instance field - the field number currentValue - the current value of the field Returns: the new value for the field Since: JDO 1.0
0

Column.scale

Annotation Element javax.jdo.annotations.Column int scale Scale for the column when handling floating point values. Returns: the scale for the column when handling floating point values Default value: -1 Since: JDO 2.1
0

replacingFloatField(pc, field)

Method javax.jdo.spi.StateManager float replacingFloatField( PersistenceCapable pc, int field ) The replacement value of the field in the calling instance. Parameters: pc - the calling PersistenceCapable instance field - the field number Returns: the new value for the field Since: JDO 1.0
0

setResultClass(cls)

may be specified to be one of the java.lang classes Character, Boolean, Byte, Short, Integer, Long, Float, Double
0

providedFloatField(pc, field, currentValue)

Method javax.jdo.spi.StateManager void providedFloatField( PersistenceCapable pc, int field, float 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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