static final LocalMemoryCacheConfig localMemoryCacheConfig = new
                    LocalMemoryCacheConfig.Builder()
                    .withCacheFilteredIndexes(true)
                    .withCacheFilteredSizes(true)
                    .withIndexCapacity(50)
                    .withIndexLifeTime(600)
                    .withItemCapacity(1000)
                    .withItemLifeTime(600)
                    .withLineSize(50)
                    .withRemoveStrategy(LocalMemoryCacheConfig.RemoveStrategy.LRU)
                    .withSizeCapacity(20)
                    .withSizeLifeTime(600)
                    .Build();
       
       Cache localMemory = CacheFactory.getCache(localMemoryCacheConfig);        
       Cache memCache = CacheFactory.getDefaultMemCache();

// -- Override getItemIds() which throws UnsupportedException by default
       private class MyGAEContainer extends GAEContainer {
             
             static final long serialVersionUID = 1L;
             
             public MyGAEContainer(String kind) {
                    // Create a container with two caches, optimistic locking and manual commits:
                    super(kind, false, true, localMemory, memCache);
                    //super(kind);
             }
             
             @Override
             public Collection<Long> getItemIds() {

                    ArrayList<Long> itemIds = new ArrayList<Long>();
                    for( int i=0; i<size(); i++) {
                           itemIds.add((Long)getIdByIndex(i));
                    }
                    return Collections.unmodifiableCollection(itemIds);                      
             }
             
       };

             gaeContainerInsurance = new MyGAEContainer("Insurance");
             gaeContainerInsurance.addContainerProperty("zip", String.class,  "");
             gaeContainerInsurance.addContainerProperty("town", String.class,  "");
             gaeContainerInsurance.addContainerProperty("address2", String.class,  "");
             gaeContainerInsurance.addContainerProperty("address1", String.class,  "");             
             gaeContainerInsurance.addContainerProperty("companyname", String.class,  "");

             this.table_insurance.setContainerDataSource(gaeContainerInsurance);
             this.table_insurance.setWriteThrough(false);
             this.table_insurance.setVisibleColumns(new String[] {"companyname","address1","address2","town","zip"});
             this.table_insurance.setColumnHeader("companyname", "Company Name");
             this.table_insurance.setColumnHeader("address1", "Address 1");
             this.table_insurance.setColumnHeader("address2", "Address 2");
             this.table_insurance.setColumnHeader("town", "Town");
             this.table_insurance.setColumnHeader("zip", "Zip"); 
             this.table_insurance.setSelectable(true); 
             this.table_insurance.setImmediate(true);
             this.table_insurance.setEditable(false); 

...

itemId = gaeContainerInsurance.addItem(); // new
VersionedGAEItem item = (VersionedGAEItem)gaeContainerInsurance.getItem(itemId);                                                       

item.getItemProperty("companyname").setValue(textField_insurancecompany_name.getValue());
item.getItemProperty("address1").setValue(textField_insurancecompany_addr1.getValue());
item.commit();
refreshTableInsurance();
table_insurance.select(itemId);              
...

private void refreshTableInsurance() {
                               
                               /*
                                 setContainerDataSource calls:
                                                              setVisibleColumns(col.toArray());
                               // Assure visual refresh
                               resetPageBuffer();
                               enableContentRefreshing(true);
                               
                                               setVisibleColumns calls:               refreshRowCache();
                               */
                               this.table_insurance.setContainerDataSource(this.table_insurance.getContainerDataSource());
                               this.table_insurance.setVisibleColumns(new String[] {"companyname","address1","address2","town","zip"});                          
}

...

Object itemId = table_insurance.getValue();
if( null!=itemId ) {
                gaeContainerInsurance.removeItem(itemId);
                refreshTableInsurance();                                                                                          
}