public Article next() { return article(ptr++, false, false); }
public Article last() { return article(ptr--, false, false); }
public Article article(String i, boolean h, boolean b) { return article(Query.header("message-id",i),h,b); }
public Article next() { return article(ptr++, false, false); }
public Article last() { return article(ptr--, false, false); }
public Article article(String i, boolean h, boolean b) { return article(Query.header("message-id",i),h,b); }