java - How to Load Collection in hibernate which fetch type is Lazy? -


i using hibernate, spring , dozer in project .

my problem that unable load lazy fetching collection(list). using dozer convert entity class (dto) class. think dozer user know these things.

when debug data db in entity class when converted dto through dozer null in collection lazy fetched.

please me out here. in advance!

i unable developer list when converted entity dto. have exact dto classes name developer , founder , map these in string configuration file. tried @select on join table loaded , working fine don't want way . if have make function in servicemanager class me .

@entity @table(name = "table") public class founder {      @id     @column(name = "foun_id")     @generatedvalue(generator = "uuid")     private string id;      @onetoone(fetch = fetchtype.eager, cascade = cascadetype.all, optional = false)     @joincolumn(name = "reg_address_id")     private address registeredaddress;       @manytomany(fetch = fetchtype.eager, cascade = cascadetype.all)     @jointable(name = "jointable", joincolumns = { @joincolumn(name = "foun_id", nullable = false) }, inversejoincolumns = { @joincolumn(name = "dev_id", nullable = true) })     private list<developer> developer;       public string getid() {         return id;     }      public void setid(string id) {         this.id = id;     }      public address getregisteredaddress() {         return registeredaddress;     }      public void setregisteredaddress(address registeredaddress) {         this.registeredaddress = registeredaddress;     }      public list<developer> getdeveloper() {          return developer;     }      public void setdeveloper(list<developer> developer) {         this.developer = developer;     }  }  @entity @table(name = "tbl") public class developer {      @id     @column(name = "dev_id")     @generatedvalue(generator = "uuid")     private string id;      @column(name = "file_number")     private string filenumber;      @column(name = "flat_info")     private string flatinfo;      @onetoone(fetch = fetchtype.eager, cascade = cascadetype.all, optional = false)     @joincolumn(name = "address_id")     private address address;      public string getid() {         return id;     }      public void setid(string id) {         this.id = id;     }      public string getfilenumber() {         return filenumber;     }      public void setfilenumber(string filenumber) {         this.filenumber = filenumber;     }      public string getflatinfo() {         return flatinfo;     }      public void setflatinfo(string flatinfo) {         this.flatinfo = flatinfo;     }      public address getaddress() {         return address;     }      public void setaddress(address address) {         this.address = address;     } }

as wrote in comment, dozer access fields of founder , developer directly , ignoring getters. hibernate create proxies lazy loading, ends empty collections after conversion. consider changing class add mapping information getters instead of fields.

this question might useful - is possible configure dozer such default fields rather accessed directly through setter-/getter method


Comments

Post a Comment

Popular posts from this blog

Why can rails not find a route created by a helper? -

i created member route in rails 4: resources :line_items post 'decrement', on: :member end and gave matching method in line_items controller: def decrement @cart = current_cart @line_item = @cart.line_items.find_by_id(params[:id]) @line_item.decrement_quantity respond_to |format| if @line_item.save format.html { redirect_to shop_path, notice: 'line item updated.' } format.js {@current_item = @line_item} format.json { head :ok } else format.html { render action: "edit" } format.js {@current_item = @line_item} format.json { render json: @line_item.errors, status: :unprocessable_entity } end end end but when try make button: <%= button_to 'x', decrement_line_item_path(item) %> i error: no route matches [post] "/carts/25" what gives? your error message is: no route matches [post] "/carts/25" but expectin...
Read more

javascript - jquery or ashx not working -

i using ajax file upload control. it creating html: <form action="/pages/handlers/asyncfileuploadhandler.ashx" method="post" enctype="multipart/form-data" target="ajaxuploader-iframe-1397144545"> <input type="hidden" name="type" value="mindvoice"> <input type="file" id="imagefile" style="display: block; width: 80%; margin-right: auto; margin-left: auto;"> </form> and target is: <iframe width="0" height="0" style="display:none;" name="ajaxuploader-iframe-1397144545" id="ajaxuploader-iframe-1397144545"></iframe> the form submitted using .submit() . my ashx handler: <%@ webhandler language="c#" class="asyncfileuploadhandler" %> using system; using system.web; using nettpals.core; public class asyncfileuploadhandler : ihttphandler { public void processre...
Read more

opencv - DataType<cv::detail::deriv_type>::depth what is it used for -

i wondering why line used in lucas kanade tracker in opencv: datatype<cv::detail::deriv_type>::depth can explain me? in opencv, depth of mat refers type of data contained in mat 's data buffer. represented integer values correspond given data type. these integers commonly abstracted appropriate macro definition (e.g. uchar data represented macro cv_8u ). cv::datatype type-traits class provides method obtain corresponding integer value without having memorize macro means data type. there few cases user code needs use datatype::depth . more common datatype::type . a simple example shows 1 possible use of datatype::depth : cv::mat uchar_data = cv::mat::ones(3, 3, cv_8uc1); cv::mat float_data; uchar_data.convertto(float_data, cv::datatype<float>::depth); // ^^ equivalently replaced // cv_32f macro float_data.at<float>(0,1) += 0.5f; std::cout << float_data << std::endl;...
Read more