Just had the same problem.... Seems to be a bug in the AutoBean List
implementation
I solved it by simply:
autoBean.setList(new ArrayList<Type>(autoBean.getList));
On Tuesday, January 31, 2012 10:51:17 PM UTC+1, Cypher wrote:
>
> I am having problems modifying a list property on an AutoBean
> deserialized from JSON with AutoBeanCodex. When I call
> List<>.add(position, value) it appears to be overwriting the value at
> that position instead of shifting values right to make room for the
> new item.
>
> Here's a JUnit test that demonstrates the behavior I'm seeing:
>
> public class AutoBeanListTest extends GWTTestCase {
>
> @Override
> public String getModuleName() {
> return "com.xxx.AutoBeanListTest";
> }
>
> @Test
> public void testDirectInsert() {
> MyBeanFactory factory = GWT.create(MyBeanFactory.class);
> MyBean bean = factory.myBean().as();
> bean.setValues(new ArrayList<String>());
> bean.getValues().add("A");
> bean.getValues().add("C");
>
> assertEquals(2,bean.getValues().size());
>
> bean.getValues().add(1,"B");
>
> assertEquals(3,bean.getValues().size()); // this one works
> assertEquals("A", bean.getValues().get(0));
> assertEquals("B", bean.getValues().get(1));
> assertEquals("C", bean.getValues().get(2));
> }
>
> @Test
> public void testSerializeInsert() {
> MyBeanFactory factory = GWT.create(MyBeanFactory.class);
> MyBean bean = factory.myBean().as();
> bean.setValues(new ArrayList<String>());
> bean.getValues().add("A");
> bean.getValues().add("C");
>
> assertEquals(2,bean.getValues().size());
>
> String json =
> AutoBeanCodex.encode(AutoBeanUtils.getAutoBean(bean)).getPayload();
> bean = AutoBeanCodex.decode(factory, MyBean.class,
> json).as();
>
> assertEquals(2,bean.getValues().size());
>
> bean.getValues().add(1,"B");
>
> assertEquals(3,bean.getValues().size()); // this one FAILS
> assertEquals("A", bean.getValues().get(0));
> assertEquals("B", bean.getValues().get(1));
> assertEquals("C", bean.getValues().get(2));
> }
>
> public interface MyBeanFactory extends AutoBeanFactory {
> AutoBean<MyBean> myBean();
> AutoBean<MyBean> myBean(MyBean myBean);
> }
>
> public interface MyBean {
> List<String> getValues();
> void setValues(List<String> values);
> }
> }
>
> The first test case (which modifies a list that I create and put into
> the bean) works as I expect, but the second test (which modifies the
> list returned from deserialization) does not. After the insert, the
> list still has only two values in it, and the second one has been
> replaced by the value I inserted.
>
> Am I doing something wrong? Is this an issue in the underlying code?
>
> I can't help but notice that the SplittableList class uses the same
> implementation for set() and add(). That doesn't seem right to me,
> but I assume I must be missing something.
>
> James
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