Examples with DatastorePersistentEntity org.springframework.cloud.gcp.data.datastore.core.mapping.DatastorePersistentEntity used on opensource projects

Example 6 with DatastorePersistentEntity

use of org.springframework.cloud.gcp.data.datastore.core.mapping.DatastorePersistentEntity in project spring-cloud-gcp by spring-cloud.

the class DatastoreTemplate method validateKey.

private void validateKey(Object entity, PathElement ancestorPE) {
    DatastorePersistentEntity datastorePersistentEntity = this.datastoreMappingContext.getPersistentEntity(entity.getClass());
    DatastorePersistentProperty idProp = datastorePersistentEntity.getIdPropertyOrFail();
    if (!TypeUtils.isAssignable(BaseKey.class, idProp.getType())) {
        throw new DatastoreDataException("Only Key types are allowed for descendants id");
    }
    Key key = getKey(entity, false);
    if (key == null || key.getAncestors().stream().anyMatch((pe) -> pe.equals(ancestorPE))) {
        return;
    }
    throw new DatastoreDataException("Descendant object has a key without current ancestor");
}

Example 7 with DatastorePersistentEntity

use of org.springframework.cloud.gcp.data.datastore.core.mapping.DatastorePersistentEntity in project spring-cloud-gcp by spring-cloud.

the class DatastoreTemplate method getDescendantEntitiesForSave.

private List<Entity> getDescendantEntitiesForSave(Object entity, Key key, Set<Key> persistedEntities) {
    DatastorePersistentEntity datastorePersistentEntity = this.datastoreMappingContext.getPersistentEntity(entity.getClass());
    List<Entity> entitiesToSave = new ArrayList<>();
    datastorePersistentEntity.doWithDescendantProperties((PersistentProperty persistentProperty) -> {
        // Convert and write descendants, applying ancestor from parent entry
        PersistentPropertyAccessor accessor = datastorePersistentEntity.getPropertyAccessor(entity);
        Object val = accessor.getProperty(persistentProperty);
        if (val != null) {
            // we can be sure that the property is an array or an iterable,
            // because we check it in isDescendant
            entitiesToSave.addAll(getEntitiesForSave((Iterable<?>) ValueUtil.toListIfArray(val), persistedEntities, key));
        }
    });
    return entitiesToSave;
}

Example 8 with DatastorePersistentEntity

use of org.springframework.cloud.gcp.data.datastore.core.mapping.DatastorePersistentEntity in project spring-cloud-gcp by spring-cloud.

the class DatastoreTemplate method getReferenceEntitiesForSave.

private List<Entity> getReferenceEntitiesForSave(Object entity, Builder builder, Set<Key> persistedEntities) {
    DatastorePersistentEntity datastorePersistentEntity = this.datastoreMappingContext.getPersistentEntity(entity.getClass());
    List<Entity> entitiesToSave = new ArrayList<>();
    datastorePersistentEntity.doWithAssociations((AssociationHandler) (association) -> {
        PersistentProperty persistentProperty = association.getInverse();
        PersistentPropertyAccessor accessor = datastorePersistentEntity.getPropertyAccessor(entity);
        Object val = accessor.getProperty(persistentProperty);
        if (val == null) {
            return;
        }
        Value<?> value;
        if (LazyUtil.isLazyAndNotLoaded(val)) {
            value = LazyUtil.getKeys(val);
        } else if (persistentProperty.isCollectionLike()) {
            Iterable<?> iterableVal = (Iterable<?>) ValueUtil.toListIfArray(val);
            entitiesToSave.addAll(getEntitiesForSave(iterableVal, persistedEntities));
            List<KeyValue> keyValues = StreamSupport.stream((iterableVal).spliterator(), false).map((o) -> KeyValue.of(this.getKey(o, false))).collect(Collectors.toList());
            value = ListValue.of(keyValues);
        } else {
            entitiesToSave.addAll(getEntitiesForSave(Collections.singletonList(val), persistedEntities));
            Key key = getKey(val, false);
            value = KeyValue.of(key);
        }
        builder.set(((DatastorePersistentProperty) persistentProperty).getFieldName(), value);
    });
    return entitiesToSave;
}