How to use

AbstractEmptinessExpression

in

org.hibernate.criterion

@Override
public final String toSqlString(Criteria criteria, CriteriaQuery criteriaQuery) throws HibernateException {
  final String entityName = criteriaQuery.getEntityName( criteria, propertyName );
  final String actualPropertyName = criteriaQuery.getPropertyName( propertyName );
  final String sqlAlias = criteriaQuery.getSQLAlias( criteria, propertyName );
  final SessionFactoryImplementor factory = criteriaQuery.getFactory();
  final QueryableCollection collectionPersister = getQueryableCollection( entityName, actualPropertyName, factory );
  final String[] collectionKeys = collectionPersister.getKeyColumnNames();
  final String[] ownerKeys = ( (Loadable) factory.getEntityPersister( entityName ) ).getIdentifierColumnNames();
  final String innerSelect = "(select 1 from " + collectionPersister.getTableName() + " where "
      + new ConditionFragment().setTableAlias( sqlAlias ).setCondition( ownerKeys, collectionKeys ).toFragmentString()
      + ")";
  return excludeEmpty()
      ? "exists " + innerSelect
      : "not exists " + innerSelect;
}

  @Override
  public final String toString() {
    return propertyName + ( excludeEmpty() ? " is not empty" : " is empty" );
  }
}

  public final String toString() {
    return propertyName + ( excludeEmpty() ? " is not empty" : " is empty" );
  }
}

public final String toSqlString(Criteria criteria, CriteriaQuery criteriaQuery) throws HibernateException {
  String entityName = criteriaQuery.getEntityName( criteria, propertyName );
  String actualPropertyName = criteriaQuery.getPropertyName( propertyName );
  String sqlAlias = criteriaQuery.getSQLAlias( criteria, propertyName );
  SessionFactoryImplementor factory = criteriaQuery.getFactory();
  QueryableCollection collectionPersister = getQueryableCollection( entityName, actualPropertyName, factory );
  String[] collectionKeys = collectionPersister.getKeyColumnNames();
  String[] ownerKeys = ( ( Loadable ) factory.getEntityPersister( entityName ) ).getIdentifierColumnNames();
  String innerSelect = "(select 1 from " + collectionPersister.getTableName()
      + " where "
      + new ConditionFragment().setTableAlias( sqlAlias ).setCondition( ownerKeys, collectionKeys ).toFragmentString()
      + ")";
  return excludeEmpty()
      ? "exists " + innerSelect
      : "not exists " + innerSelect;
}

  public final String toString() {
    return propertyName + ( excludeEmpty() ? " is not empty" : " is empty" );
  }
}

public final String toSqlString(Criteria criteria, CriteriaQuery criteriaQuery) throws HibernateException {
  String entityName = criteriaQuery.getEntityName( criteria, propertyName );
  String actualPropertyName = criteriaQuery.getPropertyName( propertyName );
  String sqlAlias = criteriaQuery.getSQLAlias( criteria, propertyName );
  SessionFactoryImplementor factory = criteriaQuery.getFactory();
  QueryableCollection collectionPersister = getQueryableCollection( entityName, actualPropertyName, factory );
  String[] collectionKeys = collectionPersister.getKeyColumnNames();
  String[] ownerKeys = ( ( Loadable ) factory.getEntityPersister( entityName ) ).getIdentifierColumnNames();
  String innerSelect = "(select 1 from " + collectionPersister.getTableName()
      + " where "
      + new ConditionFragment().setTableAlias( sqlAlias ).setCondition( ownerKeys, collectionKeys ).toFragmentString()
      + ")";
  return excludeEmpty()
      ? "exists " + innerSelect
      : "not exists " + innerSelect;
}

  public final String toString() {
    return propertyName + ( excludeEmpty() ? " is not empty" : " is empty" );
  }
}

public final String toSqlString(Criteria criteria, CriteriaQuery criteriaQuery) throws HibernateException {
  String entityName = criteriaQuery.getEntityName( criteria, propertyName );
  String actualPropertyName = criteriaQuery.getPropertyName( propertyName );
  String sqlAlias = criteriaQuery.getSQLAlias( criteria, propertyName );
  SessionFactoryImplementor factory = criteriaQuery.getFactory();
  QueryableCollection collectionPersister = getQueryableCollection( entityName, actualPropertyName, factory );
  String[] collectionKeys = collectionPersister.getKeyColumnNames();
  String[] ownerKeys = ( ( Loadable ) factory.getEntityPersister( entityName ) ).getIdentifierColumnNames();
  String innerSelect = "(select 1 from " + collectionPersister.getTableName()
      + " where "
      + new ConditionFragment().setTableAlias( sqlAlias ).setCondition( ownerKeys, collectionKeys ).toFragmentString()
      + ")";
  return excludeEmpty()
      ? "exists " + innerSelect
      : "not exists " + innerSelect;
}

  public final String toString() {
    return propertyName + ( excludeEmpty() ? " is not empty" : " is empty" );
  }
}

public final String toSqlString(Criteria criteria, CriteriaQuery criteriaQuery) throws HibernateException {
  String entityName = criteriaQuery.getEntityName( criteria, propertyName );
  String actualPropertyName = criteriaQuery.getPropertyName( propertyName );
  String sqlAlias = criteriaQuery.getSQLAlias( criteria, propertyName );
  SessionFactoryImplementor factory = criteriaQuery.getFactory();
  QueryableCollection collectionPersister = getQueryableCollection( entityName, actualPropertyName, factory );
  String[] collectionKeys = collectionPersister.getKeyColumnNames();
  String[] ownerKeys = ( ( Loadable ) factory.getEntityPersister( entityName ) ).getIdentifierColumnNames();
  String innerSelect = "(select 1 from " + collectionPersister.getTableName()
      + " where "
      + new ConditionFragment().setTableAlias( sqlAlias ).setCondition( ownerKeys, collectionKeys ).toFragmentString()
      + ")";
  return excludeEmpty()
      ? "exists " + innerSelect
      : "not exists " + innerSelect;
}