Parsing XML into Java object -

i trying determine best way parse xml response webservice call java object. using jaxb seems easiest way every example requires have template java class java type xml converted into. xml below

  <?xml version="1.0" encoding="utf-8" ?>   <entry_list version="1.0">       <entry id="main[1]"> <hw highlight="yes" hindex="1">main</hw> <sound><wav>main0001.wav</wav></sound> <pr>ˈmeɪn</pr> <fl>adjective</fl> <lb>always used before noun</lb> <def><dt>:most important :<sx>chief</sx> <sx>principal</sx> <vi>the <it>main</it> idea/point</vi> <vi>the <it>main</it> goal/purpose</vi> <vi>speed <it>main</it> advantage of approach.</vi> <vi>the company's <it>main</it> office located in new york.</vi> <vi>the novel's <it>main</it> character</vi> <vi>driving down <it>main</it> road/highway</vi> <vi>the <it>main</it> gate/entrance</vi> <vi>this dish can served <phrase>main course</phrase> or appetizer.</vi> <vi>and <phrase>main event</phrase> of evening!</vi></dt></def> <uro><ure>main*ly</ure> <fl>adverb</fl> <utxt><vi>the reviews have been <it>mainly</it> [=<it>mostly</it>] positive.</vi> <vi>a plant found <it>mainly</it> [=<it>chiefly</it>] in coastal regions</vi> <vi>i don't plan, <it>mainly</it> because think it's expensive.</vi> <vi>the problems have been <it>mainly</it> minor ones. [=most of problems have been minor ones]</vi> <vi>they depend <it>mainly</it> on/upon fish food.</vi></utxt></uro></entry>       <entry id="main[2]"> <hw hindex="2">main</hw> <altpr>ˈmeɪn</altpr> <fl>noun</fl> <in><il>plural</il> <if>mains</if></in> <def><sn>1</sn> <sgram>count</sgram> <dt>:the largest pipe in system of connected pipes <vi>a gas <it>main</it></vi> <vi>a water <it>main</it></vi></dt> <sn>2</sn> <bnote>the mains</bnote> <ssl>brit</ssl> <sn>a</sn> <dt>:the system of pipes or wires electricity, gas, or water <vi>my radio runs either off batteries or off <it>the mains</it>.</vi> <un>often used <it>mains</it> before noun <vi>we haven't had <it>mains</it> water/electricity since storm.</vi></un></dt> <sn>b</sn> <dt>:the place electricity, gas, or water enters building or room <vi>turn off water @ <it>the mains</it>.</vi></dt></def> <dro><dre>in main</dre> <def><dt>:in general <un>used statement true in cases or @ times <vi>the workers <it>in main</it> capable. [=most of workers capable]</vi> <vi>the weather has <it>in main</it> been quite good. [=has been quite of time]</vi></un></dt></def></dro></entry>       <entry id="main clause"> <hw>main clause</hw> <fl>noun</fl> <in><il>plural</il> <if>⁓ clauses</if></in> <def><gram>count</gram> <sl>grammar</sl> <dt>:a clause used simple sentence part of larger sentence <ca>called <cat>independent clause</cat></ca> <dx>compare <dxt>coordinate clause</dxt> <dxt>subordinate clause</dxt></dx></dt></def></entry>       <entry id="main drag"> <hw>main drag</hw> <fl>noun</fl> <in><il>plural</il> <if>⁓ drags</if></in> <def><gram>count</gram> <sl>us</sl> <sl>informal</sl> <dt>:the main street in town or city <vi>a carload of teenagers cruising down <it>main drag</it>.</vi></dt></def></entry>       <entry id="main line"> <hw>main line</hw> <fl>noun</fl> <in><il>plural</il> <if>⁓ lines</if></in> <def><gram>count</gram> <dt>:an important highway or railroad line</dt></def></entry>       <entry id="main man"> <hw>main man</hw> <fl>noun</fl> <in><il>plural</il> <if>⁓ men</if></in> <def><gram>count</gram> <sl>us</sl> <sl>informal</sl> <sn>1</sn> <dt>:someone's best male friend <vi>he's still <it>main man</it>.</vi></dt> <sn>2</sn> <dt>:the important or admired man in group <vi>the team has many players, <it>main man</it>.</vi></dt></def></entry>       <entry id="main squeeze"> <hw>main squeeze</hw> <fl>noun</fl> <in><il>plural</il> <if>⁓ squeezes</if></in> <def><gram>count</gram> <sl>chiefly slang</sl> <dt>:someone's main girlfriend, boyfriend, or lover <vi>she's <it>main squeeze</it>.</vi></dt></def></entry>       <entry id="main street"> <hw>main street</hw> <fl>noun</fl> <in><il>plural</il> <if>⁓ streets</if></in> <def><sn>1</sn> <sgram>count</sgram> <dt>:the important street of u.s. town there many stores, banks, etc. <un>often used name <vi>the restaurant @ 257 <it>main street</it>.</vi></un></dt> <sn>2</sn> <bnote>main street</bnote> <sgram>noncount</sgram> <ssl>us</ssl> <dt><un>used refer middle-class people in u.s. have traditional beliefs , values <vi>what <it>main street</it> think of policy?</vi></un></dt></def></entry>       <entry id="water main"> <hw>water main</hw> <fl>noun</fl> <in><il>plural</il> <if>⁓ mains</if></in> <def><gram>count</gram> <dt>:a large underground pipe carries water <vi>the <it>water main</it> burst/broke , flooded street.</vi></dt></def></entry>   </entry_list> 

my question , have define java object converted into? afraid of if case happens if data added or removed xml response exists @ moment. have tried loading xml dom , walking thropugh way againi wondered happen if element added or removed?
want child nodes if parent node value pointers easiest way welcome.

the simplest way work xml serialize object.
can jaxb, here tutorial: mykong
define how objects should like.
here example:

@xmlrootelement(name = "entry_list") public class entrylist {      @xmlelement(name = "entry")     private list<entry> entities;      public list<entry> getentities() {         return entities;     }     public void setlastname(list<entry> entities) {         this.entities = entities;     } }  public class entry {      @xmlattribute     private string id;      @xmlelement     private sound sound      etc     ...      public string getid() {         return id;     }     public void setid(string id) {         this.id = id;     }      public sound getsound() {         return sound;     }     public void setsound(sound sound) {         this.sound = sound;     } } 

every element got child element have class , if repeats multiple times entry or vi should list.