.. java:import:: java.sql Connection

.. java:import:: java.sql PreparedStatement

.. java:import:: java.sql SQLException

.. java:import:: org.caosdb.server.query Query.QueryException

.. java:import:: org.caosdb.server.query Query.Role

.. java:import:: org.jdom2 Element

RoleFilter
==========

.. java:package:: org.caosdb.server.query
   :noindex:

.. java:type:: public class RoleFilter implements EntityFilterInterface

Constructors
------------
RoleFilter
^^^^^^^^^^

.. java:constructor:: public RoleFilter(Role role, String operator, boolean versioned)
   :outertype: RoleFilter

   Guarantees that all entities in the result set do have ("=") or do not have ("!=") the role in question.

   :param role: The role in question.
   :param operator: Either "!=" or "=".
   :throws NullPointerException: If role or operator is null.
   :throws IllegalArgumentException: If operator is not "=" or "!=".

Methods
-------
apply
^^^^^

.. java:method:: @Override public void apply(QueryInterface query) throws QueryException
   :outertype: RoleFilter

getCacheKey
^^^^^^^^^^^

.. java:method:: @Override public String getCacheKey()
   :outertype: RoleFilter

toElement
^^^^^^^^^

.. java:method:: @Override public Element toElement()
   :outertype: RoleFilter