Example usage for javax.persistence.criteria CriteriaBuilder or

Introduction

In this page you can find the example usage for javax.persistence.criteria CriteriaBuilder or.

Prototype

Predicate or(Expression<Boolean> x, Expression<Boolean> y);

Source Link

Document

Create a disjunction of the given boolean expressions.

Usage

From source file:org.sparkcommerce.openadmin.server.service.persistence.ArchiveStatusPersistenceEventHandler.java

@Override
public PersistenceManagerEventHandlerResponse preFetch(PersistenceManager persistenceManager,
        PersistencePackage persistencePackage, CriteriaTransferObject cto) throws ServiceException {
    try {/*from  w w  w.j a  va2s.  c  o  m*/
        Class<?>[] entityClasses = persistenceManager.getDynamicEntityDao()
                .getAllPolymorphicEntitiesFromCeiling(
                        Class.forName(persistencePackage.getCeilingEntityFullyQualifiedClassname()));
        boolean isArchivable = false;
        for (Class<?> entity : entityClasses) {
            if (Status.class.isAssignableFrom(entity)) {
                isArchivable = true;
                break;
            }
        }
        if (isArchivable && !persistencePackage.getPersistencePerspective().getShowArchivedFields()) {
            FilterMapping filterMapping = new FilterMapping()
                    .withFieldPath(new FieldPath().withTargetProperty("archiveStatus.archived"))
                    .withDirectFilterValues(new EmptyFilterValues()).withRestriction(new Restriction()
                            .withPredicateProvider(new PredicateProvider<Character, Character>() {
                                @Override
                                public Predicate buildPredicate(CriteriaBuilder builder,
                                        FieldPathBuilder fieldPathBuilder, From root, String ceilingEntity,
                                        String fullPropertyName, Path<Character> explicitPath,
                                        List<Character> directValues) {
                                    return builder.or(builder.equal(explicitPath, 'N'),
                                            builder.isNull(explicitPath));
                                }
                            }));
            cto.getAdditionalFilterMappings().add(filterMapping);
        }
        return new PersistenceManagerEventHandlerResponse().withStatus(
                PersistenceManagerEventHandlerResponse.PersistenceManagerEventHandlerResponseStatus.HANDLED);
    } catch (ClassNotFoundException e) {
        LOG.error("Could not find the class " + persistencePackage.getCeilingEntityFullyQualifiedClassname()
                + " to " + "compute polymorphic entity types for. Assuming that the entity is not archivable");
        return new PersistenceManagerEventHandlerResponse().withStatus(
                PersistenceManagerEventHandlerResponse.PersistenceManagerEventHandlerResponseStatus.NOT_HANDLED);
    }
}