This example uses the steps that are described in the Edit the Settings of a Library Item procedure.

...
import com.vmware.content.library.Item;
import com.vmware.content.library.ItemModel;
...

// List the items in a published library
     Item libItemService = serviceManager.getVapiService(Item.class);
     List<String> itemIds = libItemService.list(libraryId.getId());
     for (String itemId : itemIds) {
         ItemModel singleItem = libItemService.get(itemId);

// List the files uploaded to each library item and print their names and size
         com.vmware.content.library.item.File itemFilesService = 
                serviceManager.getVapiService(com.vmware.content.library.item.File.class);
         List<com.vmware.content.library.item.FileTypes.Info> fileInfos = 
                itemFilesService.list(itemId);
             for (com.vmware.content.library.item.FileTypes.Info singleFile : fileInfos) {
                 System.out.println("Library item with name "+ singleFile.getName() + " has size 
                                     " + singleFile.getSize());
             }

// Change the name and description of the library item with the specified name
               if (singleItem.getName().equals("simpleVmTemplate")) {
                    ItemModel libItemUpdated = new ItemModel();
                    libItemUpdated.setName("newItemName");
                    libItemUpdated.setDescription("Description of the newItemName");
                    libItemService.update(singleItem.getId(), libItemUpdated);
                }
        }