for (SchemaTypeConstraint constraint : constraints) {
jtbAttributes.addActionListener(new SchemaTypeConstraintActionListener(constraint, XSConstants.ATTRIBUTE_DECLARATION));
jtbComplexTypes.addActionListener(new SchemaTypeConstraintActionListener(constraint, XSTypeDefinition.COMPLEX_TYPE));
jtbElements.addActionListener(new SchemaTypeConstraintActionListener(constraint, XSConstants.ELEMENT_DECLARATION));
jtbModelGroups.addActionListener(new SchemaTypeConstraintActionListener(constraint, XSConstants.MODEL_GROUP_DEFINITION));
jtbSimpleTypes.addActionListener(new SchemaTypeConstraintActionListener(constraint, XSTypeDefinition.SIMPLE_TYPE));
}
final JToolBar toolbar = new JToolBar();
toolbar.add(jtbAttributes);
toolbar.add(jtbComplexTypes);