Re: [Simple-support] Problem serialzing object with lists

[Niall G. <gal...@ya...>]

Hi,

You are missing a @Root annotation on the TestPref1
and TestPref2 classes. The general rule is, if there
is no @Root annotation then a transformation is
attempted as a last resort. However, typically
transformations will be reserved for simple types,
such as integers, booleans, strings, dates, and so on.

Niall

--- Frank Beullens <f_b...@ya...> wrote:

> Hi,
> 
> i have created the following objects:
> 
> public interface IPreference {
>     
> }
> 
> public class TestPref1 implements IPreference {
>     @Element(name="id")
>     private long id = 0;
>     
>     @Element(name="pref1name")
>     private String name = "";
>     
>     /** Creates a new instance of TestPref1 */
>     public TestPref1() {
>     }
>     public long getId() {
>         return id;
>     }
>     public void setId(long id) {
>         this.id = id;
>     }
>     public String getName() {
>         return name;
>     }
>     public void setName(String name) {
>         this.name = name;
>     }
>     
> }
> 
> public class TestPref2 implements IPreference {
>     @Element(name="pref2code")
>     private String code = "";
>     
>     /** Creates a new instance of TestPref2 */
>     public TestPref2() {
>     }
>     public String getCode() {
>         return code;
>     }
>     public void setCode(String code) {
>         this.code = code;
>     }
>     
> }
> 
> @Root(name="preferencegroup")
> public class PreferenceGroup implements IPreference
> {
>     @ElementList(name="preferences")
>     private List<IPreference> preferences = null;
>     
>     @Attribute(name="groupcode")
>     private String groupCode = "";
>     
>     public List<IPreference> getPreferences() {
>         return this.preferences;
>     }
>     
>     public void setPreferences(List<IPreference>
> preferences) {
>         this.preferences = preferences;
>     }
>     public String getGroupCode() {
>         return groupCode;
>     }
>     public void setGroupCode(String groupCode) {
>         this.groupCode = groupCode;
>     }
> }
> 
> 
> when trying to do the following:
> 
>         PreferenceGroup group = new
> PreferenceGroup();
>         group.setGroupCode("TESTGROUP");
>         List<IPreference> preferences = new
> ArrayList<IPreference>();
>         TestPref1 pref1 = new TestPref1();
>         pref1.setId(1);
>         pref1.setName("test preference 1");
>         preferences.add(pref1);
>         TestPref2 pref2 = new TestPref2();
>         pref2.setCode("TSTPRF2");
>         preferences.add(pref2);
>         group.setPreferences(preferences);
>         Serializer serializer = new Persister();
>         File result = new File("preferences.xml");
>         try {
>             serializer.write(group, result);
>         } catch (Exception ex) {
>             ex.printStackTrace();
>         }
> 
> I get the error:
> 
>
org.simpleframework.xml.transform.TransformException:
> Transform of class
> com.libesoft.rcp.preferences.test.TestPref1 not
> supported
>         at
>
org.simpleframework.xml.transform.PackageMatcher.match(PackageMatcher.java:88)
>         at
>
org.simpleframework.xml.transform.DefaultMatcher.matchType(DefaultMatcher.java:111)
>         at
>
org.simpleframework.xml.transform.DefaultMatcher.match(DefaultMatcher.java:90)
>         at
>
org.simpleframework.xml.transform.Transformer.write(Transformer.java:129)
>         at
>
org.simpleframework.xml.load.PrimitiveFactory.getText(PrimitiveFactory.java:128)
>         at
>
org.simpleframework.xml.load.Primitive.write(Primitive.java:200)
>         at
>
org.simpleframework.xml.load.PrimitiveList.write(PrimitiveList.java:157)
>         at
>
org.simpleframework.xml.load.Composite.writeElement(Composite.java:589)
>         at
>
org.simpleframework.xml.load.Composite.writeElements(Composite.java:485)
>         at
>
org.simpleframework.xml.load.Composite.write(Composite.java:423)
>         at
>
org.simpleframework.xml.load.Composite.write(Composite.java:401)
>         at
>
org.simpleframework.xml.load.Traverser.write(Traverser.java:186)
>         at
>
org.simpleframework.xml.load.Traverser.write(Traverser.java:165)
>         at
>
org.simpleframework.xml.load.Traverser.write(Traverser.java:143)
>         at
>
org.simpleframework.xml.load.Persister.write(Persister.java:608)
>         at
>
org.simpleframework.xml.load.Persister.write(Persister.java:590)
>         at
>
org.simpleframework.xml.load.Persister.write(Persister.java:571)
>         at
>
org.simpleframework.xml.load.Persister.write(Persister.java:687)
>         at
>
org.simpleframework.xml.load.Persister.write(Persister.java:669)
>         at
>
org.simpleframework.xml.load.Persister.write(Persister.java:650)
>         at
>
org.simpleframework.xml.load.Persister.write(Persister.java:629)
> 
> 
> Any ideas what i am doing wrong????
> 
> Thanks
> 
> Frank
> 
>
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