Examples with MetaEntity io.crnk.jpa.meta.MetaEntity used on opensource projects

Example 6 with MetaEntity

use of io.crnk.jpa.meta.MetaEntity in project crnk-framework by crnk-project.

the class JpaCriteriaQueryBackend method getParentIdExpression.

private Expression<?> getParentIdExpression(MetaAttribute parentAttr) {
    MetaEntity parentEntity = (MetaEntity) parentAttr.getParent();
    MetaKey primaryKey = parentEntity.getPrimaryKey();
    List<MetaAttribute> elements = primaryKey.getElements();
    PreconditionUtil.assertFalse("composite primary keys not supported yet", elements.size() != 1);
    MetaAttribute primaryKeyAttr = elements.get(0);
    return parentFrom.get(primaryKeyAttr.getName());
}