I was able to get it work.. I was using @xmltype instead of @xmlelement..
swtking wrote:
>
> In order to get different names in the xml used @XmlType on the bean
> class, but it did not work.
>
>
> swtking wrote:
>>
>> I am able to get the example to work after following your steps. Infact
>> there was a liittle change.
>> @XmlElement( name = "adaptedMap" )
>> @XmlJavaTypeAdapter(MyHashMapAdapter.class)
>> protected Map<String,ArrayList<String>> valueMapList = null;
>>
>> public Map<String, ArrayList<String>> getValueMapList() {
>> if( valueMapList == null ) valueMapList = new HashMap<String,
>> ArrayList<String>>();
>> return valueMapList;
>> }
>>
>> I had to put in this way, is there any reason?
>>
>> protected Map<String,ArrayList<String>> valueMapList = null;
>>
>>
>> @XmlElement( name = "adaptedMap" )
>> @XmlJavaTypeAdapter(MyHashMapAdapter.class)
>>
>> public Map<String, ArrayList<String>> getValueMapList() {
>> if( valueMapList == null ) valueMapList = new HashMap<String,
>> ArrayList<String>>();
>> return valueMapList;
>> }
>>
>> One more question: xml produced goes with the variables defined in the
>> bean. Is there any way I can have different name to be displayed in the
>> xml?
>>
>> <mapEntry>
>> <key>key2</key>
>> <listEntry>ela</listEntry>
>> <listEntry>elb</listEntry>
>> </mapEntry>
>>
>> something like this
>>
>> <dept>
>> <name>English</name>
>> <student>John</student>
>> <student>Joseph</student>
>> </dept>
>>
>>
>> swtking wrote:
>>>
>>> Thank you very much for your detailed explanation. It worked like a
>>> charm.
>>>
>>>
>>> Wolfgang Laun-2 wrote:
>>>>
>>>> This is the essential part of the class MyBean containing the Map:
>>>>
>>>> @XmlElement( name = "adaptedMap" )
>>>> @XmlJavaTypeAdapter(MyHashMapAdapter.class)
>>>> protected Map<String,ArrayList<String>> valueMapList = null;
>>>>
>>>> public Map<String, ArrayList<String>> getValueMapList() {
>>>> if( valueMapList == null ) valueMapList = new HashMap<String,
>>>> ArrayList<String>>();
>>>> return valueMapList;
>>>> }
>>>>
>>>> To construct a type (ValueType) that JAXB can handle "out of the box",
>>>> imagine the Map as a list of Map.Entry elements, which, in turn, has a
>>>> String key and a List<String> value. Write a class representing this
>>>> structure:
>>>>
>>>> @XmlAccessorType( XmlAccessType.NONE )
>>>> public class ListKeyListType {
>>>> private List<KeyListType> listKeyList;
>>>> public ListKeyListType(){
>>>> }
>>>> @XmlElement( name = "mapEntry" )
>>>> public List<KeyListType> getListKeyList() {
>>>> if( listKeyList == null ) listKeyList = new
>>>> ArrayList<KeyListType>();
>>>> return listKeyList;
>>>> }
>>>>
>>>> @XmlAccessorType( XmlAccessType.NONE )
>>>> public static class KeyListType {
>>>> @XmlElement
>>>> private String key;
>>>> @XmlElement( name = "listEntry" )
>>>> private List<String> list;
>>>>
>>>> public KeyListType(){
>>>> }
>>>> // getters, setters...
>>>> }
>>>> }
>>>>
>>>> Now the XmlAdapter subclass has to convert values between a
>>>> ListKeyListType
>>>> and a Map<String,List<String>>. Simply iterate over the list (or the
>>>> map)
>>>> and create map (or list) entries.
>>>>
>>>> public class MyHashMapAdapter
>>>> extends XmlAdapter<ListKeyListType, Map<String,List<String>>> {
>>>>
>>>> @Override
>>>> public Map<String,List<String>> unmarshal( ListKeyListType value )
>>>> {
>>>> Map<String,List<String>> res = new
>>>> HashMap<String,List<String>>();
>>>> for( ListKeyListType.KeyListType lkl: value.getListKeyList() ){
>>>> res.put( lkl.getKey(), lkl.getList() );
>>>> }
>>>> return res;
>>>> }
>>>>
>>>> @Override
>>>> public ListKeyListType marshal( Map<String,List<String>> value ) {
>>>> ListKeyListType res = new ListKeyListType();
>>>> List<ListKeyListType.KeyListType> lkl = res.getListKeyList();
>>>>
>>>> for( Map.Entry<String,List<String>> e: value.entrySet() ){
>>>> ListKeyListType.KeyListType kl = new
>>>> ListKeyListType.KeyListType();
>>>> kl.setKey( e.getKey() );
>>>> kl.setList( e.getValue() );
>>>> lkl.add( kl );
>>>> }
>>>> return res;
>>>> }
>>>> }
>>>>
>>>> I have added names to @XmlElement, so as to have better tags in the
>>>> resulting XML, e.g.:
>>>>
>>>> <myBean>
>>>> <adaptedMap>
>>>> <mapEntry>
>>>> <key>key2</key>
>>>> <listEntry>ela</listEntry>
>>>> <listEntry>elb</listEntry>
>>>> </mapEntry>
>>>> <mapEntry>
>>>> <key>key1</key>
>>>> <listEntry>el1</listEntry>
>>>> <listEntry>el2</listEntry>
>>>> </mapEntry>
>>>> </adaptedMap>
>>>> <name>BakedBean</name>
>>>> </myBean>
>>>>
>>>> Variations are possible. You might choose to represent the key as an
>>>> attribute, simply by using the @XmlAttribute annotation. You might go
>>>> for a
>>>> totally different representation, e.g., a flat list of <key> and
>>>> <listEntry>
>>>> elements, where the order determines the grouping into map entries,
>>>> which
>>>> would require different code for the ValueType and the XmlAdapter
>>>> subclass.
>>>> And so on.
>>>>
>>>> -W
>>>>
>>>>
>>>> On Sat, Aug 8, 2009 at 5:54 AM, swtking <rajkal23_at_yahoo.com> wrote:
>>>>
>>>>>
>>>>> My bad gave wrong example...
>>>>>
>>>>> Yes I am looking similar to this.. Can you tell me what part of my
>>>>> code
>>>>> should be changed in order to achieve this?
>>>>>
>>>>> <myBean>
>>>>> <entry>
>>>>> <key>flower</key><valueList>rose lily</valueList>
>>>>> </entry>
>>>>> <entry>
>>>>> <key>fruit</key><valueList>apple orange</valueList>
>>>>> </entry>
>>>>> </myBean>
>>>>>
>>>>>
>>>>>
>>>>> Wolfgang Laun-2 wrote:
>>>>> >
>>>>> > On Fri, Aug 7, 2009 at 9:23 PM, swtking <rajkal23_at_yahoo.com> wrote:
>>>>> >
>>>>> >>
>>>>> >> Thanks for your response. Made changes to MyHashMapAdapter.java the
>>>>> >> format
>>>>> >> I
>>>>> >> needed but still no luck.
>>>>> >>
>>>>> >> I am trying to get output in this format.
>>>>> >>
>>>>> >> <xml>
>>>>> >> <abc>
>>>>> >> <123></123>
>>>>> >> <345></345>
>>>>> >> </abc>
>>>>> >> <def>
>>>>> >> <789></789>
>>>>> >> </def>
>>>>> >> </xml>
>>>>> >>
>>>>> >
>>>>> > You won't be able to get anywhere close to this, for several
>>>>> reasons:
>>>>> > - tags can't start with a digit
>>>>> > - values can't be tags
>>>>> > - unless you override in XmlElement etc., tags will be derived from
>>>>> field
>>>>> > names
>>>>> >
>>>>> > Maybe like this:
>>>>> >
>>>>> > <myBean>
>>>>> > <entry>
>>>>> > <key>flower</key><valueList>rose lily</valueList>
>>>>> > </entry>
>>>>> > <entry>
>>>>> > <key>fruit</key><valueList>apple orange</valueList>
>>>>> > </entry>
>>>>> > </myBean>
>>>>> >
>>>>> > -W
>>>>> >
>>>>> >
>>>>> >>
>>>>> >>
>>>>> >> MyBean.java
>>>>> >>
>>>>> >> private Map<String,List<String>> valueMapList=null;
>>>>> >>
>>>>> >> @XmlJavaTypeAdapter(MyHashMapAdapter.class)
>>>>> >> @XmlElement
>>>>> >> public Map<String, List<String>> getValueMapList() {
>>>>> >> return valueMapList;
>>>>> >> }
>>>>> >>
>>>>> >> public void setValueMapList(Map<String, List<String>>
>>>>> valueMapList)
>>>>> >> {
>>>>> >> this.valueMapList = valueMapList;
>>>>> >> }
>>>>> >>
>>>>> >>
>>>>> >> MyHashMapAdapter.java
>>>>> >>
>>>>> >> public class MyHashMapAdapter extends
>>>>> >> XmlAdapter<HashMap<String,List<String>>, Map<String,List<String>>>
>>>>> {
>>>>> >>
>>>>> >> @Override
>>>>> >> public HashMap<String,List<String>> unmarshal( String[]
>>>>> value )
>>>>> {
>>>>> >>
>>>>> >> HashMap<String,List<String>> m = new
>>>>> HashMap<String,List<String>>();
>>>>> >> return m;
>>>>> >> }
>>>>> >>
>>>>> >>
>>>>> >> @Override
>>>>> >> public String[] marshal(List<String> arg0) throws Exception {
>>>>> >> String[] s = (String[]) arg0.toArray();
>>>>> >> return s;
>>>>> >> }
>>>>> >>
>>>>> >> }
>>>>> >>
>>>>> >>
>>>>> >>
>>>>> >> Wolfgang Laun-2 wrote:
>>>>> >> >
>>>>> >> > The adapter converts between String[] and List<String> but the
>>>>> element
>>>>> >> to
>>>>> >> > which the adapter is attached to is a Map<?,?>.
>>>>> >> >
>>>>> >> > You could attach an adapter to MyBean, to convert between its
>>>>> field
>>>>> >> > valueMapList and whatever. You'll have to design a class that's
>>>>> capable
>>>>> >> of
>>>>> >> > storing the same information as MyBean but can be handled by JAXB
>>>>> and
>>>>> >> is
>>>>> >> > structured according to the XML structure you want.
>>>>> >> >
>>>>> >> > -W
>>>>> >> >
>>>>> >> >
>>>>> >> > On Thu, Aug 6, 2009 at 9:16 PM, swtking <rajkal23_at_yahoo.com>
>>>>> wrote:
>>>>> >> >
>>>>> >> >>
>>>>> >> >> Could anyone tell me what I am doing wrong.
>>>>> >> >>
>>>>> >> >> Trying to marshall a complex map (Map<String,List<String>>)
>>>>> >> >>
>>>>> >> >> MyBean.java
>>>>> >> >>
>>>>> >> >> private Map<String,List<String>> valueMapList=null;
>>>>> >> >>
>>>>> >> >> @XmlJavaTypeAdapter(MyHashMapAdapter.class)
>>>>> >> >> @XmlElement
>>>>> >> >> public Map<String, List<String>> getValueMapList() {
>>>>> >> >> return valueMapList;
>>>>> >> >> }
>>>>> >> >>
>>>>> >> >> public void setValueMapList(Map<String, List<String>>
>>>>> >> >> valueMapList)
>>>>> >> >> {
>>>>> >> >> this.valueMapList = valueMapList;
>>>>> >> >> }
>>>>> >> >>
>>>>> >> >>
>>>>> >> >> MyHashMapAdapter.java
>>>>> >> >>
>>>>> >> >> public class MyHashMapAdapter extends XmlAdapter<String[],
>>>>> >> List<String>>
>>>>> >> >> {
>>>>> >> >>
>>>>> >> >> public List<String> unmarshal( String[] value ) {
>>>>> >> >> List<String> r = new ArrayList<String>();
>>>>> >> >> for( String s : value )
>>>>> >> >> r.add(s);
>>>>> >> >> return r;
>>>>> >> >> }
>>>>> >> >>
>>>>> >> >> public String[] unmarshal( List<String> value ) {
>>>>> >> >> return value.toArray(new
>>>>> String[value.size()]);
>>>>> >> >> }
>>>>> >> >>
>>>>> >> >> @Override
>>>>> >> >> public String[] marshal(List<String> arg0) throws
>>>>> Exception {
>>>>> >> >> String[] s = (String[]) arg0.toArray();
>>>>> >> >> return s;
>>>>> >> >> }
>>>>> >> >>
>>>>> >> >> }
>>>>> >> >>
>>>>> >> >>
>>>>> >> >> This is my error
>>>>> >> >>
>>>>> >> >> java.io.IOException: Error marshalling JAXB object of type
>>>>> "class
>>>>> >> >> com.MyBean".
>>>>> >> >> at
>>>>> >> >>
>>>>> >> >>
>>>>> >>
>>>>> com.sun.jersey.core.provider.jaxb.AbstractRootElementProvider.writeTo(AbstractRootElementProvider.java:145)
>>>>> >> >> at
>>>>> >> >>
>>>>> >> >>
>>>>> >>
>>>>> com.sun.jersey.spi.container.ContainerResponse.write(ContainerResponse.java:254)
>>>>> >> >> at
>>>>> >> >>
>>>>> >> >>
>>>>> >>
>>>>> com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:578)
>>>>> >> >> at
>>>>> >> >>
>>>>> >> >>
>>>>> >>
>>>>> com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:502)
>>>>> >> >> at
>>>>> >> >>
>>>>> >> >>
>>>>> >>
>>>>> com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:493)
>>>>> >> >> Truncated. see log file for complete stacktrace
>>>>> >> >> com.sun.xml.bind.v2.runtime.IllegalAnnotationsException: 3
>>>>> counts of
>>>>> >> >> IllegalAnnotationExceptions
>>>>> >> >> Adapter com.MyHashMapAdapter is not applicable to the field type
>>>>> >> >> java.util.Map<java.lang.String,
>>>>> java.util.List<java.lang.String>>.
>>>>> >> >> this problem is related to the following location:
>>>>> >> >> at
>>>>> >> >>
>>>>> @javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter(type=class
>>>>> >> >> javax.xml.bind.annotation.adapters.XmlJavaTypeAdapter$DEFAULT,
>>>>> >> >> value=class
>>>>> >> >> com.MyHashMapAdapter)
>>>>> >> >> at public java.util.Map
>>>>> com.MyBean.getValueMapList()
>>>>> >> >> at com.MyBean
>>>>> >> >> java.util.Map is an interface, and JAXB can't handle interfaces.
>>>>> >> >> this problem is related to the following location:
>>>>> >> >> at java.util.Map
>>>>> >> >> at public java.util.Map
>>>>> com.MyBean.getValueMapList()
>>>>> >> >> at com.MyBean
>>>>> >> >> java.util.Map does not have a no-arg default constructor.
>>>>> >> >> this problem is related to the following location:
>>>>> >> >> at java.util.Map
>>>>> >> >> at public java.util.Map
>>>>> com.MyBean.getValueMapList()
>>>>> >> >> at com.MyBean
>>>>> >> >>
>>>>> >> >> at
>>>>> >> >>
>>>>> >> >>
>>>>> >>
>>>>> com.sun.xml.bind.v2.runtime.IllegalAnnotationsException$Builder.check(IllegalAnnotationsException.java:102)
>>>>> >> >> at
>>>>> >> >>
>>>>> >> >>
>>>>> >>
>>>>> com.sun.xml.bind.v2.runtime.JAXBContextImpl.getTypeInfoSet(JAXBContextImpl.java:447)
>>>>> >> >> at
>>>>> >> >>
>>>>> >> >>
>>>>> >>
>>>>> com.sun.xml.bind.v2.runtime.JAXBContextImpl.<init>(JAXBContextImpl.java:288)
>>>>> >> >> at
>>>>> >> >>
>>>>> >> >>
>>>>> >>
>>>>> com.sun.xml.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1111)
>>>>> >> >> at
>>>>> >> >>
>>>>> >>
>>>>> com.sun.xml.bind.v2.ContextFactory.createContext(ContextFactory.java:154)
>>>>> >> >> Truncated. see log file for complete stacktrace
>>>>> >> >>
>>>>> >> >>
>>>>> >> >> --
>>>>> >> >> View this message in context:
>>>>> >> >>
>>>>> >>
>>>>> http://www.nabble.com/Error-marshalling-JAXB-object-tp24852727p24852727.html
>>>>> >> >> Sent from the java.net - jaxb users mailing list archive at
>>>>> >> Nabble.com.
>>>>> >> >>
>>>>> >> >>
>>>>> >> >>
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>>>>> >> >> For additional commands, e-mail: users-help_at_jaxb.dev.java.net
>>>>> >> >>
>>>>> >> >>
>>>>> >> >
>>>>> >> >
>>>>> >>
>>>>> >> --
>>>>> >> View this message in context:
>>>>> >>
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>>>>> Nabble.com.
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>>>>> >>
>>>>> >>
>>>>> >
>>>>> >
>>>>>
>>>>> --
>>>>> View this message in context:
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>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>
>
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