Package de.xima.fc.dao.utils

Class CriteriaApiHelper.DeleteCtx<QT>

  • Type Parameters:
    QT - the query type.
    Enclosing class:
    CriteriaApiHelper
    public static final class CriteriaApiHelper.DeleteCtx<QT>
extends Object
    Wraps the EntityManager provided by the entity context, a CriteriaBuilder and a CriteriaDelete. This can replace the well-known three-liner 
    
  EntityManager em = ec.getEm();
  CriteriaBuilder cb = em.getCriteriaBuilder();
  CriteriaDelete<XyzEntity> cq = cb.createCriteriaDelete(XyzEntity.class);
    by 
    
  DeleteCtx<XyzEntity> ctx = CriteriaApiHelper.deleteCtx(ec);

    • Field Detail

      • cd

        public final javax.persistence.criteria.CriteriaDelete<QT> cd
        The CriteriaDelete instance.

    • Method Detail

      • createQuery

        public javax.persistence.Query createQuery()
        Creates a Query instance for executing a criteria delete query, does the same as ctx.em.createQuery(ctx.cd).
        Returns:
        the resulting Query