public void addCqListener(CqListener cqListener) {
    if (cqListener == null) {
      throw new IllegalArgumentException(
          "addCqListener parameter was null");
    }
    cqAttributes.addCqListener(cqListener);
  }
Adds a CQ listener to the end of the list of cq listeners on this factory.

@param cqListener the CqListener to add to the factory.
@throws IllegalArgumentException if <code>cqListener</code> is null
geode-core/src/main/java/org/apache/geode/cache/query/CqAttributesFactory.java