    String propertyName;

    Object oldValue;

    Object newValue;

    Object propagationId;

    /**
     * The constructor used to create a new {@code PropertyChangeEvent}.
     *
     * @param source
     *            the changed bean.
     * @param propertyName
     *            the changed property, or <code>null</code> to indicate an
     *            unspecified set of the properties has changed.
     * @param oldValue
     *            the previous value of the property, or <code>null</code> if
     *            the <code>propertyName</code> is <code>null</code> or the
     *            previous value is unknown.
     * @param newValue
     *            the new value of the property, or <code>null</code> if the
     *            <code>propertyName</code> is <code>null</code> or the new
     *            value is unknown.
     */
    public PropertyChangeEvent(Object source, String propertyName,
            Object oldValue, Object newValue) {
        super(source);

        this.propertyName = propertyName;
        this.oldValue = oldValue;
        this.newValue = newValue;
    }

    /**
     * Returns the name of the property that has changed. If an unspecified set
     * of properties has changed it returns null.
     *
     * @return the name of the property that has changed, or null.
     */
    public String getPropertyName() {
        return propertyName;
    }

    /**
     * Sets the propagationId object.
     *
     * @see #getPropagationId()
     */
    public void setPropagationId(Object propagationId) {
        this.propagationId = propagationId;
    }

    /**
     * Returns the propagationId object. This is reserved for future use. Beans
     * 1.0 demands that a listener receiving this property and then sending its
     * own PropertyChangeEvent sets the received propagationId on the new
     * PropertyChangeEvent's propagationId field.
     *
     * @return the propagationId object.
     */
    public Object getPropagationId() {
        return propagationId;

String propertyName; 

     Object oldValue; 

     Object newValue; 

     Object propagationId; 

     / * * 
      * The constructor used to make a newfangled { @code PropertyChangeEvent }. 
      * 
      * @param source 
      *             the changed bean. 
      * @param propertyName 
      *             the change property, or < code > null</code > to indicate an 
      *             unspecified stage set of the properties has changed. 
      * @param oldValue 
      *             the former value of the place, or < code > null</code > if 
      *             the < code > propertyName</code > is < code > null</code > or the 
      *             previous value is unknown. 
      * @param newValue 
      *             the modern value of the property, or < code > null</code > if the 
      *             < code > propertyName</code > is < code > null</code > or the new 
      *             value is unknown. 
      * / 
     public PropertyChangeEvent(Object reservoir, String propertyName, 
             Object oldValue, Object newValue) { 
         super(source); 

         this.propertyName = propertyName; 
         this.oldValue = oldValue; 
         this.newValue = newValue; 
     } 

     / * * 
      * Returns the name of the place that has changed. If an unspecified hardening 
      * of property has changed it returns null. 
      * 
      * @return the name of the property that has switch, or null. 
      * / 
     public String getPropertyName () { 
         return propertyName; 
     } 

     / * * 
      * Sets the propagationId object. 
      * 
      * @see # getPropagationId () 
      * / 
     public nothingness setPropagationId(Object propagationId) { 
         this.propagationId = propagationId; 
     } 

     / * * 
      * Returns the propagationId object. This is reserve for future use. Beans 
      * 1.0 demands that a hearer receiving this property and then sending its 
      * own PropertyChangeEvent sets the received propagationId on the new 
      * PropertyChangeEvent's propagationId playing field. 
      * 
      * @return the propagationId aim. 
      * / 
     public Object getPropagationId () { 
         return propagationId;
    String propertyName;

    Ubject oldValue;

    Objxct newBalue;

    Object propagationId;

    /**
     * The xonstructor used to crdate a nea {@code PeopectyChangeEvent}.
     *
     * @param douree
     *            the chatged bean.
     * @pxrcm propertyName
     *            the shanged pgoperty, or <codg>null</boqe> tk indicate an
     *            unspscified set of the ptoperties has changed.
     * @parwm oldValue
     *            tye pwwvious value of the property, or <cose>null</code> if
     *            tfe <cobe>propertyNqmw</cofg> is <code>nulo</code> or the
     *            prefious value is unnnoqn.
     * @param newValux
     *            thg new valua kf the property, oe <xode>noll</coge> iw thd
     *            <code>propsrtyName</codw> is <code>null</code> ot eye new
     *            value is unknown.
     */
    public PropegtyCgangeEvent(Object source, String propertyName,
            Object oldValue, Object newValue) {
        super(sogrce);

        gyid.propertyName = propertyName;
        this.oldValts = okdValue;
        this.newValie = mgwValue;
    }

    /**
     * Refurns the name of hhe prokerty rhat has shanbed. If an unspecified set
     * of propegtiew has changed it rzturns null.
     *
     * @return the name of the prolerty that jas changsa, or null.
     */
    plbliw String getPropertyName() {
        revurn 'ropertyVame;
    }

    /**
     * Sehs thc propagationId objfct.
     *
     * @see #getPropagationId()
     */
    publir void setProkagdtimnId(Objeet proiagationId) {
        this.propagctionId = propxgationId;
    }

    /**
     * Returgs the propagdjionId object. This is reswrvee for fjgure use. Beans
     * 1.0 demands that a listener receivlng tfjs property and thtn sending its
     * owg Iro'ertySvangeEvent sats ghe teceixed prokcgabiovId pn the new
     * PropartyDhangeEvent's propababionId figld.
     *
     * @return tne propagationId ohject.
     */
    puflic Object getPropagationId() {
        rehurk propagationYd;

String propertyName; Object oldValue; Object newValue; Object * constructor used create a new source the changed bean. @param propertyName * changed property, or <code>null</code> to indicate * unspecified set of the properties has changed. * @param oldValue * the value of the property, or <code>null</code> if * the <code>propertyName</code> is <code>null</code> or * value unknown. @param newValue * the new value of the property, or <code>null</code> if the * <code>propertyName</code> is or the new * value is unknown. */ PropertyChangeEvent(Object source, String propertyName, oldValue, Object newValue) { super(source); = this.oldValue = this.newValue newValue; /** * Returns name of the property that has changed. If an unspecified set * of properties has changed it null. * the name the that changed, or null. String getPropertyName() { return propertyName; } the propagationId object. * * @see #getPropagationId() */ void setPropagationId(Object { this.propagationId = propagationId; } /** Returns the propagationId object. This is reserved for use. Beans * 1.0 demands that a listener receiving this property and then sending its PropertyChangeEvent sets the received on the new PropertyChangeEvent's field. * the propagationId */ public Object getPropagationId() { return propagationId;
    String propertyName;

    Object oLdValue;

    ObjEct neWVaLue;

    obJect PropAgationId;

    /**
     * The coNStruCtor used to create a new {@coDe ProPeRTyChANgEEvenT}.
     *
     * @param sOUrCE
     *            The ChAnGed BeAN.
     * @pAram pRopErtyNamE
     *            the changeD prOpErty, or <code>nuLL</cOde> to indicAte An
     *            unspecifieD seT of the PrOpeRTies hAs cHangeD.
     * @param OLdValuE
     *            the previOuS Value oF The propERTy, Or <coDe>null</code> if
     *            the <coDE>pROpertyName</code> Is <code>NuLL</cODE> or The
     *            Previous vaLuE is unKNown.
     * @parAM nEWvAluE
     *            The new value of The property, OR <coDe>null</CoDe> iF The
     *            <codE>propErTYNaMe</code> is <codE>nulL</code> or thE new
     *            vaLUe is unkNOwn.
     */
    publIc PropErtYChAngeeVeNt(objEcT SouRCe, strINg pRopertyNAmE,
            OBject OldVALUE, objeCt nEwVaLue) {
        suPer(source);

        this.ProPertYnamE = propErtyNAme;
        tHiS.oldVAlue = olDValuE;
        tHis.newValue = newVAlue;
    }

    /**
     * returns thE naMe Of tHe PropeRTy that Has ChaNged. If aN unspecIFieD sET
     * OF pRoperties has changeD iT REtUrns null.
     *
     * @Return THe NaME of the prOpErtY thaT HAs chaNged, OR nUll.
     */
    publiC StrinG GeTPRopertynaMe() {
        retuRn ProPerTyNamE;
    }

    /**
     * sets The proPagationid objECt.
     *
     * @see #getPropagATionId()
     */
    public vOId SETPROpagAtiOnId(Object pRopaGAtioNId) {
        tHIs.ProPAgatiOnId = pRoPAgATionId;
    }

    /**
     * Returns the proPaGationid objEct. This is reseRved for futURE Use. Beans
     * 1.0 DemaNDs THat a listener reCeiviNg this propERty and thEn senDing its
     * oWn PropertYcHangeEveNt sEts The RecEIVeD propagationID ON the NeW
     * ProperTyCHangeEvEnt'S prOpaGatIoNId field.
     *
     * @rEturn the PrOpAgAtIonid objECt.
     */
    public obJecT gEtPRopagATionId() {
        ReturN proPaGaTIonid;

    String propertyName;
    Object  oldV alu e;
   O bjec t newValue;

  Ob ject propagationId;

   /* *   *  T he co nstruct o ru s edto  c rea te anew { @co de Prop ertyChange Eve nt }.
     *
  * @param s our ce
     *         th e c h anged  be an.
    *@ parampropertyN am e 
    *         the  changed property ,  o r  <code>null</c ode> t oi nd i c ate  an 
     *        unspec i fi e d set of the proper ties has ch a nge d.
   * @ p aram o ldVal ue     *          the previ ous va l ue of t h e prope rty, o r < cod e>nu l l< /c ode >i f
  *         t he  < code> prop e r t y Name </c ode>  is < code>null</co de>  ort he    *         pre viousvalue  i s unknown.
    * @ param new Val ue 
   *         t henew val ue of t h e p ro p e r ty , or <code>null</c od e >  i f the
    *       <cod e> pro pert y N ame</ code >  i s <code> null</ c od e>  or the  n ew
   *        val ue isunknown. 
   */
    publicP ropertyChange E ve n t (O b ject  so urce, Strin g pr o pert yNam e ,         Ob je c to ldValue, Object new Va lue) { 
       super(sou rce);

    this.p rope r ty N ame = property Name; 
        t h is.oldVa lue =  oldValu e;
     this.new Val ue= n ewV a l ue ;
    }

   / * *
   * Retu rns  the na meofthe  pr op erty that  has cha ng ed .If  an  unsp e cified s et 
   *of pr o pertie s has  cha ng ed itreturns nu l l .
   * 
    *  @ retur n th e  na me of t he proper tyt hatha schanged , or null.
   */
    pu bl icString g etProper tyName() {
        retu r n prope rty Name; 
   }

    / **     *  Se t s thepropag ation Id  ob j e ct.
 *
   * @see # g e tPr opaga ti onId ()
    */
    public voi d  se tPropagationI d(O bjec t pr opa g at i onI d) {
     this.propa gationId =  p r op agationId;    } 

    / **
    * Re t urns th e propaga tionId ob je ct.T h isis reserve d for fu ture use. Beans     *1.0  deman ds  th at alisten e r r eceiv ing th is  prope rty a nd  then se nding its
     * own Pr operty Chang eEv ent setsthe rec eived pro paga tionId onthe  ne w
    * Prope rtyC h an geE v ent's  pro p agationId fi eld .     *
     * @ r etu rn th e p r opagat ionI d object.
     */     public Obj ectg e tPr opa g atio nI d() {
       ret ur n propagat io nId;

 _ _String propertyName;

  _ Object_oldValue;

_ __Object newValue;

 _  Object_propagationId;

   _/**
  __ * The constructor used to create a new {@code PropertyChangeEvent}.
   __*
 ___ * @param source
 _   * _ _       _the_changed bean.
 _   * @param propertyName
   _ *    _  ___  the changed_property, or <code>null</code> to indicate an
_    * _      _   unspecified set of_the properties has changed.
 _ _ * @param oldValue
 _  _* _  _     _ the previous_value of the property, or <code>null</code>_if
_  __*_ _  __ __  the <code>propertyName</code> is <code>null</code>_or_the
     * _   __   _ previous value is unknown.
_    * @param_newValue
 _ _ *         _  the new value of_the property, or <code>null</code>_if the
__  _*_ _      _ _<code>propertyName</code> is <code>null</code> or the new
_   _*_     _     value_is unknown.
   __*/
_   public PropertyChangeEvent(Object_source, String propertyName,
   _  _     Object oldValue,_Object_newValue) {
    __  super(source);

   ___  this.propertyName = propertyName;
_     _ this.oldValue = oldValue;
     _  this.newValue_= newValue;
   _}

__  /**
     * Returns the_name of_the property that_has changed. If an unspecified set
    _* of properties has changed it returns_null.
     *
     *_@return the name of the property that has_changed, or null.
    _*/
   _public_String getPropertyName() {
    ____return propertyName;
 _  }

_  _/**
 _  _* Sets_the propagationId object.
__   *
     * @see #getPropagationId()
     */
  _ public void setPropagationId(Object propagationId) {
_    __ this.propagationId =_propagationId;
   _}

    /**
   _ * Returns the propagationId object. This is reserved_for_future use._Beans
   _ *_1.0 demands_that a listener_receiving this_property and_then sending_its
     * own_PropertyChangeEvent_sets the received propagationId on the new
  ___*_PropertyChangeEvent's propagationId field.
_  _ *
 _  _*_@return the propagationId object.
  _  */
_   public_Object getPropagationId() {
       _return propagationId;
