Example usage for org.hibernate.metadata ClassMetadata getNaturalIdentifierProperties

Introduction

In this page you can find the example usage for org.hibernate.metadata ClassMetadata getNaturalIdentifierProperties.

Prototype

int[] getNaturalIdentifierProperties();

Source Link

Document

Which properties hold the natural id?

Usage

From source file:cz.jirutka.commons.hibernate.HibernateUtils.java

License:Open Source License

/**
 * Return names of properties holding NaturalId of the given entity's 
 * metadata./*from  w  w  w. ja  v a2s .  c o m*/
 * 
 * @param metadata entity class metadata
 * @return names of properties holding NaturalId
 */
public static String[] getNaturalIdentifierNames(ClassMetadata metadata) {
    if (!metadata.hasNaturalIdentifier()) {
        return new String[0];
    }

    int[] naturalProps = metadata.getNaturalIdentifierProperties();
    String[] propNames = metadata.getPropertyNames();
    String[] naturalNames = new String[naturalProps.length];

    for (int i = 0; i < naturalProps.length; i++) {
        naturalNames[i] = propNames[naturalProps[i]];
    }
    return naturalNames;
}

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From source file:cz.jirutka.rsql.hibernate.builder.NaturalIdCriterionBuilder.java

License:Open Source License

@Override
public Criterion createCriterion(String property, Comparison operator, String argument, Class<?> entityClass,
        String alias, CriteriaBuilder builder) throws ArgumentFormatException, UnknownSelectorException {

    Class<?> type = findPropertyType(property, builder.getClassMetadata(entityClass));
    ClassMetadata classMetadata = builder.getClassMetadata(type);
    int[] idProps = classMetadata.getNaturalIdentifierProperties();
    Class<?> idType = classMetadata.getPropertyTypes()[idProps[0]].getReturnedClass();
    String idName = classMetadata.getPropertyNames()[idProps[0]];

    if (idProps.length != 1) {
        LOG.warn("Entity {} has more than one Natural ID, only first will be used");
    }/*  w ww . j  av  a  2  s  . c  om*/
    LOG.debug("Entity {} has Natural ID {} of type {}",
            new Object[] { type.getSimpleName(), idName, idType.getSimpleName() });

    Object castedArgument = builder.getArgumentParser().parse(argument, idType);

    String newAlias = builder.createAssociationAlias(alias + property);

    return createCriterion(newAlias + '.' + idName, operator, castedArgument);

}

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From source file:es.logongas.ix3.dao.metadata.impl.MetaDataImplHibernate.java

License:Apache License

@Override
public List<String> getNaturalKeyPropertiesName() {

    List<String> naturalKeyPropertiesName = new ArrayList<String>();

    ClassMetadata classMetadata = getClassMetadata();
    if (classMetadata == null) {
        return naturalKeyPropertiesName;
    }//ww  w.  j av a  2s. c  o m

    if (classMetadata.hasNaturalIdentifier()) {

        int[] positions = classMetadata.getNaturalIdentifierProperties();
        String[] propertyNames = classMetadata.getPropertyNames();

        for (int i = 0; i < positions.length; i++) {
            int position = positions[i];
            String naturalKeyPropertyName = propertyNames[position];

            naturalKeyPropertiesName.add(naturalKeyPropertyName);
        }

    } else {
        //Si no hay clave natural, la lista no tendr ningn elemento
    }

    return naturalKeyPropertiesName;
}

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