Object to Rest-URL

Question

The user can set a number of values (which are optional) for a search query that will be passed on to a REST api. So I create a POJO to hold all the set values like

class Search{ private String minPrice; private String maxPrice; private String category; // etc.pp. }

When I construct the URL for the api call, i have to check wether that value is set all the time like

if (search.getMinPrice() != null){ url.append("&minprice=" + search.getMinPrice()); }

Is there a more convenient/ elegant way to do this

with pure Java, just a way to "do sth if sth is not null"
or even a library/tool that lets you construct Urls from objects?

I think you mean query strings more specifically than URLs. Constructing an arbitrary URL from an object would be impossible. However, constructing a query string from members of a class would be possible. — rmlan
– rmlan, Commented Mar 14, 2013 at 13:36
Also, possible duplicates of stackoverflow.com/questions/1861620/… and stackoverflow.com/questions/1405731/… — rmlan
– rmlan, Commented Mar 14, 2013 at 13:38

CodeChimp · Accepted Answer · 2013-03-14 13:44:37Z

1

Something like:

String url = "http://base.com/some/path?" + (maxPrice==null ? "" : "maxPrice="+maxPrice);

answered Mar 14, 2013 at 13:44

CodeChimp

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