Examples with CollectionAttribute javax.persistence.metamodel.CollectionAttribute used on opensource projects

Example 1 with CollectionAttribute

use of javax.persistence.metamodel.CollectionAttribute in project hibernate-orm by hibernate.

the class AbstractFromImpl method joinCollection.

@Override
@SuppressWarnings({ "unchecked" })
public <X, Y> CollectionJoin<X, Y> joinCollection(String attributeName, JoinType jt) {
    final Attribute<X, ?> attribute = (Attribute<X, ?>) locateAttribute(attributeName);
    if (!attribute.isCollection()) {
        throw new IllegalArgumentException("Requested attribute was not a collection");
    }
    final PluralAttribute pluralAttribute = (PluralAttribute) attribute;
    if (!PluralAttribute.CollectionType.COLLECTION.equals(pluralAttribute.getCollectionType())) {
        throw new IllegalArgumentException("Requested attribute was not a collection");
    }
    return (CollectionJoin<X, Y>) join((CollectionAttribute) attribute, jt);
}