Examples with NullListener org.apache.jena.rdf.listeners.NullListener used on opensource projects

Example 1 with NullListener

use of org.apache.jena.rdf.listeners.NullListener in project jena by apache.

the class TestModelEvents method testNullListener.

/**
 * Test that the null listener doesn't appear to do anything. Or at least
 * doesn't crash ....
 */
public void testNullListener() {
    final ModelChangedListener NL = new NullListener();
    model.register(NL);
    model.add(ModelHelper.statement(model, "S P O "));
    model.remove(ModelHelper.statement(model, "X Y Z"));
    model.add(ModelHelper.statements(model, "a B c; d E f"));
    model.remove(ModelHelper.statements(model, "g H i; j K l"));
    model.add(asIterator(ModelHelper.statements(model, "model N o; p Q r")));
    model.remove(asIterator(ModelHelper.statements(model, "s T u; v W x")));
    model.add(ModelHelper.modelWithStatements(this, "leaves fall softly"));
    model.remove(ModelHelper.modelWithStatements(this, "water drips endlessly"));
    model.add(Arrays.asList(ModelHelper.statements(model, "xx RR yy")));
    model.remove(Arrays.asList(ModelHelper.statements(model, "aa VV rr")));
}