私はprimefaces3.3とjsf2.0で作業しています。怠惰なデータモデルのレコードを削除するのに問題があります。データテーブルでは並べ替えとフィルタリングが正しく機能しないため、lazydatamodelの概念を使用する必要がありました。これで、保存（ウィザードを使用）、編集、並べ替え、フィルタリングが正常に機能します。データテーブルからレコードを削除しようとすると、ダイアログが表示され、yes（コマンドボタン）をクリックしてレコードを削除すると、Beanメソッドを呼び出す代わりに、レイジーデータモデルのロードメソッドに制御が移動します。clientUitility.java（managedbean）のdeleterecordが呼び出されていません。クライアントオブジェクトを渡すことでデータテーブルからレコードを削除するためのガイダンスを誰かに教えてもらえますか？これがコードスニペットです
clientMaster.xhtml
<h:form id="cm">
<p:growl life="5000" showDetail="true" showSummary="true" id="mymessage" />
<p:wizard widgetVar="wiz" flowListener="#{clientUitility.onFlowProcess}" showNavBar="true" >
<p:tab id="personal" title="Personal" >
.....
.....// tab and columns
.....
<p:commandButton id="addClient" immediate="true" value="Add Client" actionListener="#{clientUitility.save}" oncomplete="wiz.loadStep (wiz.cfg.steps [0], true)" update=":fce:clientList" > <!-- update="@parent,:cm:clientList" -->
</p:commandButton>
</p:column>
</p:row>
</p:panelGrid>
</p:panel>
</p:tab>
</p:wizard>
</h:form>
<ui:include id="ce" src="ClientEditDatatable.xhtml"/>
ClientEditdatatable.xhtml
<h:form id="fce">
<p:dataTable var="client" value="#{clientUitility.lazyModel}" id="clientList" editable="true" widgetVar="clientTable" rowKey="#{client.clientID}"
paginatorTemplate="{RowsPerPageDropdown} {FirstPageLink} {PreviousPageLink} {CurrentPageReport} {NextPageLink} {LastPageLink}"
paginator="true" rows="10" rowsPerPageTemplate="5,10,15" lazy="true">
<p:column headerText="First Name" style="width:100px" filterBy="#{client.firstName}" sortBy="#{client.firstName}" >
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{client.firstName}" />
</f:facet>
<f:facet name="input">
<p:inputText id="dtFirstName" value="#{client.firstName}" style="width:100%" label="FirstName" onkeyup="valid(this)" onblur="convertUpper(this.id)" >
<f:validateLength for="dtFirstName" maximum="100" minimum="3"/>
</p:inputText>
</f:facet>
</p:cellEditor>
</p:column>
.....
..... // code of column
.....
<p:ajax event="rowEdit" listener="#{clientUitility.editRowListner}" update=":cm:mymessage"/>
<p:column headerText="Delete" style="width:50px">
<p:commandButton id="deleteClient" value="Delete" onclick="confirmDeleteClient.show()" title="Delete this Client" styleClass="ui-icon-trash">
<f:setPropertyActionListener target="#{client}" value="#{clientUitility.client}"/>
</p:commandButton>
</p:column>
</p:dataTable>
<p:confirmDialog message="Delete client?" severity="alert" widgetVar="confirmDeleteClient" visible="false" appendToBody="true" >
<p:commandButton value="Yes" update="clientList" immediate="true" oncomplete="confirmDeleteClient.hide()" actionListener="#{clientUitility.deleteRecord}" >
<f:setPropertyActionListener target="#{client}" value="#{client}"
</p:commandButton>
<p:commandButton value="No" onclick="confirmDeleteClient.hide()" type="button" />
</p:confirmDialog>
<br/>
LazyClientDataModel.java
public class LazyClientDataModel extends LazyDataModel<ClientBean> {
private List<ClientBean> datasource;
public LazyClientDataModel(List<ClientBean> datasource) {
this.datasource = datasource;
}
@Override
public ClientBean getRowData(String rowKey) {
for(ClientBean client : datasource) {
if(Integer.toString(client.getclientID()).equals(rowKey))
return client;
}
return null;
}
@Override
public Object getRowKey(ClientBean client) {
return Integer.toString(client.getclientID());
}
@Override
public List<ClientBean> load(int first, int pageSize, String sortField, SortOrder sortOrder, Map<String,String> filters) {
List<ClientBean> data = new ArrayList<ClientBean>();
//filter
for(ClientBean client : datasource) {
boolean match = true;
for(Iterator<String> it = filters.keySet().iterator(); it.hasNext();) {
try {
String filterProperty = it.next();
String filterValue = filters.get(filterProperty);
String fieldValue = String.valueOf(client.getClass().getField(filterProperty).get(client));
if(filterValue == null || fieldValue.toLowerCase().startsWith(filterValue.toLowerCase())) {
match = true;
} else {
match = false;
break;
}
} catch(Exception e) {
match = false;
}
}
if(match) {
data.add(client);
}
}
//sort
if(sortField != null) {
Collections.sort(data, new LazySorter(sortField, sortOrder));
}
//rowCount
int dataSize = data.size();
this.setRowCount(dataSize);
//paginate
if(dataSize > pageSize) {
try {
return data.subList(first, first + pageSize);
}
catch(IndexOutOfBoundsException e) {
return data.subList(first, first + (dataSize % pageSize));
}
}else {
return data;
}
}
}
clientUitility.java（managedbean）
public class ClientUitility {
private LazyDataModel<ClientBean> lazyModel;
private ClientBean client = new ClientBean();
private List<ClientBean> clientAll;// = new ArrayList<ClientBean>();
/** Creates a new instance of ClientUitility */
public ClientUitility() {
client = new ClientBean();
clientAll = new ArrayList<ClientBean>();
//int userID = Integer.parseInt(FacesContext.getCurrentInstance().getExternalContext().getSessionMap().get("USER_ID").toString());
clientAll = ClientService.GenerateClientList(1);
lazyModel = new LazyClientDataModel(clientAll);
}
// setter and getter of client
// getter for lazymodel
public void deleteRecord(ActionEvent actionEvent) {
try {
System.out.println("Delete record Called....");
int ClientID = client.getclientID();
ClientService.DeleteClient(client);
client = new ClientBean();
clientAll = ClientService.GenerateClientList(1);
lazyModel = new LazyClientDataModel(clientAll);
FacesMessage msg = new FacesMessage("Client Deleted", "");
FacesContext.getCurrentInstance().addMessage(null, msg);
} catch (Exception e) {
e.printStackTrace();
}
public void save(ActionEvent actionEvent) {
System.out.println("Save record Called....");
ClientService.AddClient(client);
client = new ClientBean();
clientAll = ClientService.GenerateClientList(1);
lazyModel = new LazyClientDataModel(clientAll);
FacesMessage msg = new FacesMessage("Client Created", "");
FacesContext.getCurrentInstance().addMessage(null, msg);
}
}