New solr search "parameters" handling whiteboard

gistfile1.java

// DomainObjectQueryHandler will assert a generic "SearchInfo" data-type
public abstract class DomainObjectQueryHandler<T extends SearchInfo> {
    ...
    public abstract T buildSearchInfo(HttpServletRequest request);
    ...
    public String refineQString(T searchInfo) {
        return null;
    }
}

"T" would be asserted on the implementation of DomainObjectQueryHandler object:

public class LibraryContentQueryHandler extends DomainObjectQueryHandler<LibrarySearchInfo> {
    ...
    // the query handler will be responsible for building / producing the object based on the request
    // TODO: may need to to also input default "template options"
    public LibrarySearchInfo buildSearchInfo(HttpServletRequest request) {
        LibrarySearchInfo info = new LibrarySearchInfo();
        info.setUserId(request.getParameter(...));
        ...
    }

    // the search info data-type would then feed into the query string generation
    public String refineQString(LibrarySearchInfo searchInfo) {
        return "userid:"+SearchUtil.escapeQueryChars(searchInfo.getUserId());
    }

    // the notion of "loadUserProperties" would no longer exist and be replaced with buildSearchInfo(...)

}