roleTagAttribute = getAttribute("role");
targetTagAttribute = getAttribute("target");
}
protected JbpmActionListener getListener(final FaceletContext ctx) {
return new AddMembershipActionListener(
getValueExpression(userTagAttribute, ctx, User.class),
getValueExpression(groupTagAttribute, ctx, Group.class),
getValueExpression(roleTagAttribute, ctx, String.class),
getValueExpression(targetTagAttribute, ctx, Membership.class)
);