Example usage for javax.persistence InheritanceType JOINED

Introduction

In this page you can find the example usage for javax.persistence InheritanceType JOINED.

Prototype

InheritanceType JOINED

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Document

A strategy in which fields that are specific to a subclass are mapped to a separate table than the fields that are common to the parent class, and a join is performed to instantiate the subclass.

Usage

From source file:com.jaxio.celerio.factory.InheritanceFactory.java

private void putEntityByTableNameForEntityWithInheritance() {
    // Attention, for SINGLE_TABLE inheritance strategy, we only put the root entity.

    for (EntityConfig entityConfig : config.getCelerio().getEntityConfigs()) {
        Entity entity = config.getProject().getEntityByName(entityConfig.getEntityName());

        if (entity.hasInheritance() && !config.getProject().hasEntityByTableName(entity.getTableName())) {
            InheritanceType inheritanceType = entity.getInheritance().getStrategy();

            if (inheritanceType == InheritanceType.SINGLE_TABLE) {
                if (entity.isRoot()) {
                    config.getProject().putEntityByTableName(entity);
                }//from www .jav  a2 s  .co m
            } else if (inheritanceType == InheritanceType.JOINED
                    || inheritanceType == InheritanceType.TABLE_PER_CLASS) {
                config.getProject().putEntityByTableName(entity);
            } else {
                log.warning("Invalid case, there should be an inheritance type");
            }
        }
    }
}

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From source file:org.castor.cpa.jpa.processors.classprocessors.JPAInheritanceProcessor.java

/**
 * {@inheritDoc}/*  ww  w . j a  v a  2s .c  o  m*/
 * 
 * @see org.castor.core.annotationprocessing.TargetAwareAnnotationProcessor#
 *      processAnnotation(BaseNature, Annotation, AnnotatedElement)
 */
public <I extends BaseNature, A extends Annotation> boolean processAnnotation(final I info, final A annotation,
        final AnnotatedElement target) throws AnnotationTargetException {

    if ((info instanceof JPAClassNature) && (annotation instanceof Inheritance) && (target instanceof Class<?>)
            && (target.isAnnotationPresent(Inheritance.class))) {
        LOG.debug("Processing class annotation " + annotation.toString());

        JPAClassNature jpaClassNature = (JPAClassNature) info;
        Inheritance inheritance = (Inheritance) annotation;
        InheritanceType strategy = inheritance.strategy();

        if (strategy != InheritanceType.JOINED) {
            throw new AnnotationTargetException("InheritanceType not supported: " + strategy.toString());
        }

        jpaClassNature.setInheritanceStrategy(strategy);
        return true;
    }

    return false;
}

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