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Hi guys,
in the project that I'm developing, I have a problem that I can't solve. I will give the class hierarchy and a simple example that should explain the use case. Even though I work on two different instances of objects (tvm.arrFlightOperatorViewVMPagingDAO and tvm.depFlightOperatorViewVMPagingDAO) of the class ListVMPagingDAO that inherits from GenericDaoModel, when imposed a @ save on a parameter (value = "@ bind (tvm.arrFlightOperatorViewVMPagingDAO.pageSize)") this is set in the object relative (tvm.arrFlightOperatorViewVMPagingDAO), but is replicated in the other object (tvm.depFlightOperatorViewVMPagingDAO), and obviously this is undesirable behavior.
public abstract class GenericDAOModel<T> extends ListModelSet<T> {
private static final long serialVersionUID = 1L;
protected List <HibernateOrderCriteria> orderCriteriaList = new ArrayList <HibernateOrderCriteria>();
protected List <HibernateAliasCriteria> aliasCriteriaList = new ArrayList <HibernateAliasCriteria>();
protected HashMap <String,Criterion> filterCriteriaHash = new HashMap <String,Criterion>();
@SuppressWarnings("rawtypes")
protected GenericHibernateDAO DAO;
protected Class<T> persistentClass;
/*constructor*/
@SuppressWarnings("unchecked")
public GenericDAOModel(DAOFactoryInterface DAOFactory) throws Exception{
super();
persistentClass = (Class<T>) ((ParameterizedType) getClass()
.getGenericSuperclass()).getActualTypeArguments()[0];
DAO = DAOFactory.getDAOInstance(persistentClass);
}
/*get and set method*/
public int getPageSize() {
return DAO.getPageSize();
}
public void setPageSize(int pageSize) {
DAO.setPageSize(pageSize);
}
@SuppressWarnings("rawtypes")
public GenericHibernateDAO getDAO() {
return DAO;
}
public Class<T> getPersistentClass() {
return persistentClass;
}
/*method*/
public void resetDAO() throws Exception{
DAO.clearAllList();
}
public boolean addPersistentAliasCriteria(String fieldName, String alias){
return addPersistentAliasCriteria(new HibernateAliasCriteria(fieldName, alias));
}
public boolean addPersistentAliasCriteria(HibernateAliasCriteria aliasCriteria){
removePersistentAliasCriteria(aliasCriteria);
return aliasCriteriaList.add(aliasCriteria);
}
public void removePersistentAliasCriteria(String alias){
removePersistentAliasCriteria(new HibernateAliasCriteria("", alias));
}
public void removePersistentAliasCriteria(HibernateAliasCriteria aliasCriteria){
for(HibernateAliasCriteria alias : aliasCriteriaList){
if(alias.equals(aliasCriteria)){
aliasCriteriaList.remove(alias);
}
}
}
public void removeAllPersistentAliasCriteria(){
aliasCriteriaList.clear();
}
public boolean addPersistentOrderCriteria(String fieldName, boolean ascOrder){
return addPersistentOrderCriteria(new HibernateOrderCriteria(fieldName, ascOrder));
}
public boolean addPersistentOrderCriteria(HibernateOrderCriteria orderCriteria){
removePersistentOrderCriteria(orderCriteria);
return orderCriteriaList.add(orderCriteria);
}
public void removePersistentOrderCriteria(String fieldName){
removePersistentOrderCriteria(new HibernateOrderCriteria(fieldName, false));
}
public void removePersistentOrderCriteria(HibernateOrderCriteria orderCriteria){
for(HibernateOrderCriteria order : orderCriteriaList){
if(order.equals(orderCriteria)){
orderCriteriaList.remove(order);
}
}
}
public void removeAllPersistentOrderCriteria(){
orderCriteriaList.clear();
}
public Criterion addPersistentFilterCriteria(String uniqueCriteriaName, Criterion criteria){
return filterCriteriaHash.put(uniqueCriteriaName.toUpperCase(), criteria);
}
public Criterion removePersistentFilterCriteria(String uniqueCriteriaName){
return filterCriteriaHash.remove(uniqueCriteriaName.toUpperCase());
}
public void removeAllPersistentFilterCriteria(){
filterCriteriaHash.clear();
}
}
and this are two SubClass: 1)
public abstract class ComboAutocompleteModel<T> extends GenericDAOModel<T> implements ListSubModel<T> {
private static final long serialVersionUID = 2583L;
public static final int CASE_SENSITIVE_MATCH = 1;
public static final int CASE_UNSENSITIVE_MATCH = 0;
public static final int MATCH_MODE_START = 0;
public static final int MATCH_MODE_ANYWHERE = 1;
public static final int DEFAULT_N_ROWS = 250;
private String searchField;
private int matchType;
private int matchMode;
private int subModelRows;
public ComboAutocompleteModel( String field, DAOFactoryInterface DAOFactory) throws Exception{
super(DAOFactory);
this.searchField = field;
this.subModelRows = DEFAULT_N_ROWS;
this.setMultiple(false);
}
/*-----------------METODI----------------*/
@SuppressWarnings("unchecked")
@Override
public ListModel<T> getSubModel(Object value, int nRows){
String key = value == null ? "" : value.toString();
int rows = nRows<0 ? subModelRows : nRows;
try {
return new ListModelSet<T>( getMatched( key, rows ) );
} catch (Throwable e) {
Log.getLogger().info("Something wrong on getSubModel: " + e.getMessage());
Log.getLogger().error(e,e);
}
return null;
}
@SuppressWarnings("unchecked")
private Collection<? extends T> getMatched( String key, int rows ) throws Throwable {
try{
if( !key.equals("") ){
this.resetDAO();
MatchMode mm = this.getMatchMode() == 0 ? MatchMode.START : MatchMode.ANYWHERE;
this.getDAO().addCriterion( Restrictions.ilike(this.searchField, key, mm) );
this.getDAO().setCriteriaMaxResult( rows );// GenericHibernateDAO.DEF_PAGE_SIZE
this.getDAO().addOrderCriteria( this.searchField, true);
for(HibernateAliasCriteria alias : aliasCriteriaList){
if(!getDAO().getAliasList().contains(alias))
getDAO().addAlias(alias);
}
for(Criterion filter : filterCriteriaHash.values()){
getDAO().addCriterion(filter);
}
for(HibernateOrderCriteria order : orderCriteriaList){
if(!getDAO().getOrderCriteriaList().contains(order))
getDAO().addOrderCriteria(order);
}
if(!getDAO().getOrderCriteriaList().contains(new HibernateOrderCriteria(this.searchField, true)))
getDAO().addOrderCriteria(this.searchField, true);
List<T> temp = (List<T>)getDAO().findByCriteria( GenericHibernateDAO.NO_PAGING );
super.addAll(temp);
}
}
catch (NullPointerException e){
Log.getLogger().info("Something wrong on getMatched function: " + e.getMessage());
Log.getLogger().error(e,e);
}
List<T> matchedData = new LinkedList<T>();
Iterator<T> iter = this._set.iterator();
T next;
int cnt = 0;
while( iter.hasNext() ){
next = iter.next();
if( compare( next, key ) ){
matchedData.add( next );
cnt++;
if(cnt == rows)
break;
}
}
return matchedData;
}
private boolean compare(T next, String key) throws Throwable {
String methodName = "get" + String.valueOf(this.searchField.toCharArray()[0]).toUpperCase() + searchField.substring(1);
boolean comparation = false;
try{
String ret = (String) next.getClass().getMethod(methodName).invoke(next);
String comp1 = this.getMatchType() == CASE_SENSITIVE_MATCH ? ret : ret.toLowerCase();
String comp2 = this.getMatchType() == CASE_SENSITIVE_MATCH ? key : key.toLowerCase();
comparation = this.getMatchMode() == MATCH_MODE_START ? comp1.startsWith(comp2) : comp1.contains(comp2);
}
catch(Exception e){
Log.getLogger().info("Something wrong on 'compare' function: " + e.getMessage());
Log.getLogger().error(e,e);
}
return comparation;}// metodi setSelectedObj e getSelectedObj sono stati introdotti per retrocompatibilità
@Deprecated public void setSelectedObj( T obj ){ super.clear(); super.add(obj); super.addToSelection(obj); }
@Deprecated
public T getSelectedObj(){
if( ( !this.isMultiple() ) && ( !_selection.isEmpty() ) )
return _selection.iterator().next();
else
return null;
}
/*-----------------METODI GETTER E SETTER----------------*/
}
2)
public abstract class ListVMPagingDAO<T> extends GenericDAOModel<T> {
private static final long serialVersionUID = 3852L;
private String searchParameter;
private boolean searchActive;
private int activePage;
private boolean preserveSelection = true;
private ComboAutocompleteModel <T> synchComboModel;
public ListVMPagingDAO(DAOFactoryInterface DAOFactory) throws Throwable {
this(false, DAOFactory);
}
public ListVMPagingDAO (boolean multipleSelection, DAOFactoryInterface DAOFactory) throws Exception {
super(DAOFactory);
searchParameter = "";
activePage = 0;
searchActive = false;
this.setMultiple(multipleSelection);
}
public ListVMPagingDAO(boolean multipleSelection, HibernateOrderCriteria defOrderCriteria, DAOFactoryInterface DAOFactory) throws Throwable {
this(multipleSelection, DAOFactory);
orderCriteriaList.add(defOrderCriteria);
}
public ListVMPagingDAO(boolean multipleSelection, String fieldName, boolean ascOrder, DAOFactoryInterface DAOFactory) throws Throwable {
this(multipleSelection, DAOFactory);
orderCriteriaList.add(new HibernateOrderCriteria(fieldName, ascOrder));
}
@SuppressWarnings("unchecked")
public List<T> loadObjList() throws Throwable{
try{
for(HibernateAliasCriteria alias : aliasCriteriaList){
if(!getDAO().getAliasList().contains(alias))
getDAO().addAlias(alias);
}
for(Criterion filter : filterCriteriaHash.values()){
getDAO().addCriterion(filter);
}
for(HibernateOrderCriteria order : orderCriteriaList){
if(!getDAO().getOrderCriteriaList().contains(order))
getDAO().addOrderCriteria(order);
}
List<T> temp = (List<T>)getDAO().findByCriteria(this.getActivePage());
List<T> preservedSelection = null;
if(preserveSelection){
preservedSelection = preserveSelection(temp);
}
super.clear();
super.addAll(temp);
/* add preserved selection */
if(preservedSelection != null && preserveSelection){
for(T obj : preservedSelection){
super.addToSelection(obj);
}
}
}catch (Throwable e){
Log.getLogger().info("Something wrong on 'loadObjectList' function: " + e.getMessage());
Log.getLogger().error(e,e);
getDAO().clearAllList();
List<T> temp = (List<T>)getDAO().findByCriteria( this.getActivePage());
List<T> preservedSelection = null;
if(preserveSelection){
preservedSelection = preserveSelection(temp);
}
super.clear();
super.addAll(temp);
if(preservedSelection != null && preserveSelection){
for(T obj : preservedSelection){
super.addToSelection(obj);
}
}
}
return new ArrayList<T>(_set);
}
private List <T> preserveSelection(List <T> dataList){
ArrayList <T> preservedSelectionList = new ArrayList<T>();
_selection.retainAll(dataList);
preservedSelectionList.addAll(_selection);
return preservedSelectionList;
}
public void resetDAOAndPage(){
activePage = 0;
getDAO().clearAllList();
}
public void resetPage(){
activePage = 0;
}
public int getActivePage(){
return this.activePage;
}
public void setActivePage(int activePage) {
this.activePage = activePage;
try {
this.loadObjList();
} catch (Throwable e) {
Log.getLogger().info("Something wrong on 'setActivePage' function: " + e.getMessage());
Log.getLogger().error(e,e);
}
}
public int getTotalSize(){
return getDAO().count();
}
public ComboAutocompleteModel<T> getSynchComboModel() {
return synchComboModel;
}
public void setSynchComboModel(ComboAutocompleteModel<T> synchComboModel) {
this.synchComboModel = synchComboModel;
}
public boolean isPreserveSelection() {
return preserveSelection;
}
public void setPreserveSelection(boolean preserveSelection) {
this.preserveSelection = preserveSelection;
}
@Override
public boolean addToSelection(T obj) {
//Autocomplete combo model synch
if(synchComboModel != null){
synchComboModel.clear();
synchComboModel.add(obj);
synchComboModel.addToSelection(obj);
}
return super.addToSelection(obj);
}
@Deprecated
public void setSearchActive(boolean searchActive) {
this.searchActive = searchActive;
}
@Deprecated
public boolean isSearchActive() {
return searchActive;
}
// metodi setSelectedObj e getSelectedObj sono stati introdotti per retrocompatibilità
@Deprecated
public void setSelectedObj( T obj ){
super.clearSelection();
super.addToSelection(obj);
}
@Deprecated
public T getSelectedObj(){
if( ( !this.isMultiple() ) && ( !_selection.isEmpty() ) )
return _selection.iterator().next();
else
return null;
}
@Deprecated
public String getSearchParameter() {
return searchParameter;
}
@Deprecated
public void setSearchParameter(String searchParameter) {
this.searchParameter = searchParameter;
}
}
my example zul file (test_VMPaging)
<zk>
<window title="test_VMPaging" border="normal" apply="org.zkoss.bind.BindComposer" viewModel="@id('tvm')
@init('vis.eghos.web.ui.viewModel.common.TestVM')">
<listbox>
<listhead>
<listheader label="test flight operator" sort="auto" />
</listhead>
<listitem vflex="true">
<listcell>
<label value="Arrivo"></label>
<combobox id="c1" model="@load(tvm.flightOperatorViewAutocomplete)"
buttonVisible="false" autodrop="true" selectedItem="@bind(tvm.selectedArrivalObj)"
value="@load(tvm.selectedArrivalObj.iataicao)" constraint="strict">
<template name="model" var="a">
<comboitem label="@load(a.iataicao)" />
</template>
</combobox>
<bandbox id="b1" width="1px">
<bandpopup width="450px" vflex="true">
<listbox vflex="true" height="50%"
model="@load(tvm.arrFlightOperatorViewVMPagingDAO)"
onSelect="b1.close();"
selectedItem="@bind(tvm.selectedArrivalObj)">
<listhead>
<listheader
label="Arrival flight operator" />
</listhead>
<template name="model" var="af">
<listitem label="@load(af.iataicao)" />
</template>
</listbox>
<hbox width="100%" pack="center"
align="center">
<intbox style="text-align:center;"
value="@bind(tvm.arrFlightOperatorViewVMPagingDAO.pageSize)"
format="####" constraint="no negative,no empty" width="30px"
height="100%"
onBlur="@command('listPageChange',vmPagingData = tvm.arrFlightOperatorViewVMPagingDAO)"
onOK="@command('listPageChange',vmPagingData = tvm.arrFlightOperatorViewVMPagingDAO)"/>
<paging pageSize="@load(tvm.arrFlightOperatorViewVMPagingDAO.pageSize)"
totalSize="@load(tvm.arrFlightOperatorViewVMPagingDAO.totalSize)"
activePage="@bind(tvm.arrFlightOperatorViewVMPagingDAO.activePage)" />
<label value="@load(c:cat(tvm.arrFlightOperatorViewVMPagingDAO.totalSize,' rows'))"
height="95%" style="text-align:center; border : none;" />
</hbox>
</bandpopup>
</bandbox>
<separator></separator>
<label value="@load(tvm.selectedArrivalObj.iataicao)"></label>
</listcell>
</listitem>
<listitem>
<listcell>
<label value="Partenza"></label>
<combobox id="c2"
model="@load(tvm.depFlightOperatorViewAutocomplete) @template('miot')"
buttonVisible="false" autodrop="true"
selectedItem="@bind(tvm.selectedDepartureObj)"
value="@load(tvm.selectedDepartureObj.iataicao)"
constraint="strict">
<template name="miot" var="d">
<comboitem label="@load(d.iataicao)" />
</template>
</combobox>
<bandbox id="b2" width="1px">
<bandpopup width="450px" vflex="true">
<listbox vflex="true"
model="@load(tvm.depFlightOperatorViewVMPagingDAO) @template('myTem')"
onSelect="b2.close()"
selectedItem="@bind(tvm.selectedDepartureObj)">
<listhead>
<listheader
label="Departure flight operator" />
</listhead>
<template name="myTem">
<listitem
label="@load(each.iataicao)">
</listitem>
</template>
</listbox>
<hbox width="100%" pack="center" align="center">
<intbox style="text-align:center;"
value="@bind(tvm.depFlightOperatorViewVMPagingDAO.pageSize)"
format="####" constraint="no negative,no empty" width="30px"
height="100%" onBlur="@command('listPageChange',flightVMData = tvm,vmPagingData = tvm.depFlightOperatorViewVMPagingDAO)"
onOK="@command('listPageChange',flightVMData = tvm,vmPagingData = tvm.depFlightOperatorViewVMPagingDAO)" />
<paging pageSize="@load(tvm.depFlightOperatorViewVMPagingDAO.pageSize)"
totalSize="@load(tvm.depFlightOperatorViewVMPagingDAO.totalSize)"
activePage="@bind(tvm.depFlightOperatorViewVMPagingDAO.activePage)" />
<label value="@load(c:cat(tvm.depFlightOperatorViewVMPagingDAO.totalSize,' rows'))"
height="95%" style="text-align:center; border : none;" />
</hbox>
</bandpopup>
</bandbox>
<separator></separator>
<label
value="@load(tvm.selectedDepartureObj.iataicao)">
</label>
</listcell>
</listitem>
</listbox>
</window>
</zk>
ViewModel (TestVM):
public class TestVM {
private FlightOperatorViewAutocompleteModel flightOperatorViewAutocomplete;
private FlightOperatorListVMPagingDAO arrFlightOperatorViewVMPagingDAO;
private DepFlightOperatorViewAutocompleteModel depFlightOperatorViewAutocomplete;
private FlightOperatorListVMPagingDAO depFlightOperatorViewVMPagingDAO;
private FlightOperatorViewBean selectedArrivalObj;
private FlightOperatorViewBean selectedDepartureObj;
@Init
public void init() {
try {
selectedArrivalObj = new FlightOperatorViewBean();
selectedDepartureObj = new FlightOperatorViewBean();
flightOperatorViewAutocomplete = new FlightOperatorViewAutocompleteModel();
depFlightOperatorViewAutocomplete = new DepFlightOperatorViewAutocompleteModel();
arrFlightOperatorViewVMPagingDAO = new FlightOperatorListVMPagingDAO();
arrFlightOperatorViewVMPagingDAO.loadObjList();
arrFlightOperatorViewVMPagingDAO.setSynchComboModel(flightOperatorViewAutocomplete);
arrFlightOperatorViewVMPagingDAO.setPreserveSelection(false);
depFlightOperatorViewVMPagingDAO = new FlightOperatorListVMPagingDAO();
depFlightOperatorViewVMPagingDAO.loadObjList();
depFlightOperatorViewVMPagingDAO.setSynchComboModel(depFlightOperatorViewAutocomplete);
depFlightOperatorViewVMPagingDAO.setPreserveSelection(false);
} catch (Throwable e) {
e.printStackTrace();
}
}
@SuppressWarnings("rawtypes")
@Command("listPageChange")
public void listPageChange( @BindingParam("vmPagingData")ListVMPagingDAO vmpDAO ) throws Throwable{
if(vmpDAO.getClass().getName().equals(arrFlightOperatorViewVMPagingDAO.getClass().getName())){
((FlightOperatorListVMPagingDAO)vmpDAO).loadObjList();
//BindUtils.postNotifyChange(null,null, this, "arrFlightOperatorViewVMPagingDAO");
}
}
//get and set
}
Asked: 2014-04-01 10:47:57 +0800
Seen: 10 times
Last updated: Apr 01 '14