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

Example 1 with MapAttribute

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

the class AbstractFromImpl method joinMap.

@Override
@SuppressWarnings({ "unchecked" })
public <X, K, V> MapJoin<X, K, V> joinMap(String attributeName, JoinType jt) {
    final Attribute<X, ?> attribute = (Attribute<X, ?>) locateAttribute(attributeName);
    if (!attribute.isCollection()) {
        throw new IllegalArgumentException("Requested attribute was not a map");
    }
    final PluralAttribute pluralAttribute = (PluralAttribute) attribute;
    if (!PluralAttribute.CollectionType.MAP.equals(pluralAttribute.getCollectionType())) {
        throw new IllegalArgumentException("Requested attribute was not a map");
    }
    return (MapJoin<X, K, V>) join((MapAttribute) attribute, jt);
}