html - Jaunt - check if there is specific element -

i'm using nutch crawl website , writing plugin. jaunt 1.0.0.1 used parse html. example, have row

element infobooksitem = body.findfirst("<div class=info_books_item>"); 

which gets , error, when on page no <div class=info_books_item>. i'm looking @ jaunt javadocs, can't figure out how check, there such element or not.

you correct findfirst method throws exception if element not found.. can use try-catch block catch notfound exception in code, , take there, or if can write helper method not throw exception (if need boolean detector)

public boolean has(element element, string target){   try{     element.findfirst(target);     return true;   }   catch(notfound n){     return false;   } } 

alternatively, can use findevery method, not throw exception, boolean detector:

if(body.findevery("<div class=info_books_item>").size() > 0){ }