在p：dataTable中选择一行时如何查询字段？

Question

我有一个表格和数据表， 我的问题是当我在表中选择一行时，所有字段都将查询为期望字段，因为它取决于另一个字段。 如果您能帮助我咨询该领域，我将不胜感激。

我的表格

<p:outputLabel for="Portfolio" value="#{msg['Portfolio']}" />
                    <p:selectOneMenu id="Portfolio" value="#{cashMvtView.beanCashMvt.portfolio}" style="width:120px">
                        <p:ajax listener="#{cashMvtView.onPortfolioChange}" update="Cashaccount" />
                        <f:selectItem itemLabel="Selectionner un portefeuille" itemValue="" noSelectionOption="true" />
                        <f:selectItems value="#{cashMvtView.portfolios}" />
                    </p:selectOneMenu>

                    <p:outputLabel for="Cashaccount" value="#{msg['Cashaccount']}" />
                    <p:selectOneMenu id="Cashaccount" value="#{cashMvtView.beanCashMvt.cashAccount}" style="width:120px">
                        <f:selectItem itemLabel="Selectionner un compte" itemValue="" noSelectionOption="true" />
                        <f:selectItems value="#{cashMvtView.cashAccounts}" />
                    </p:selectOneMenu>

cashMvtView.onPortfolioChange：

public void onPortfolioChange() {        
    if(beanCashMvt.getPortfolio() !=null && !beanCashMvt.getPortfolio().equals("")){            
        cashAccounts = data.get(beanCashMvt.getPortfolio());            
    }
    else
        cashAccounts = new HashMap<String, String>();
}

CashMvtView.java：

private Map<String,Map<String,String>> data = new HashMap<String, Map<String,String>>();
private String portfolio; 
private String cashAccount;  
private Map<String,String> portfolios;
private Map<String,String> cashAccounts;

@PostConstruct
public void init() {
    portfolios  = new HashMap<String, String>();
    portfolios.put("Portefeuille1", "Portefeuille1");
    portfolios.put("Portefeuille2", "Portefeuille2");
    portfolios.put("Portefeuille3", "Portefeuille3");

    Map<String,String> map = new HashMap<String, String>();
    map.put("Portefeuille1_1", "Portefeuille1_1");
    map.put("Portefeuille1_2", "Portefeuille1_2");
    map.put("Portefeuille1_3", "Portefeuille1_3");
    data.put("Portefeuille1", map);

    map = new HashMap<String, String>();
    map.put("Portefeuille2_1", "Portefeuille2_1");
    map.put("Portefeuille2_2", "Portefeuille2_2");
    map.put("Portefeuille2_3", "Portefeuille2_3");
    data.put("Portefeuille2", map);

    map = new HashMap<String, String>();
    map.put("Portefeuille3_1", "Portefeuille3_1");
    map.put("Portefeuille3_2", "Portefeuille3_2");
    map.put("Portefeuille3_3", "Portefeuille3_3");
    data.put("Portefeuille3", map);
}

public Map<String, Map<String, String>> getData() {
    return data;
}

public String getPortfolio() {
    return portfolio;
}

public void setPortfolio(String portfolio) {
    this.portfolio = portfolio;
}

public String getCashAccount() {
    return cashAccount;
}

public void setCashAccount(String cashAccount) {
    this.cashAccount = cashAccount;
}

public Map<String, String> getPortfolios() {
    return portfolios;
}

public Map<String, String> getCashAccounts() {
    return cashAccounts;
}

我的数据表：

<p:dataTable var="cashMvt"  value="#{cashMvtView.listeFilteredCashMvt}" 
                                 selectionMode="single" filteredValue="#{cashMvtView.listeFilteredCashMvt}"
                                 selection="#{cashMvtView.selectedCashMvt}" 
                                 rowKey="#{cashMvt.id}"  tableStyle="width:auto"
                                 paginator="true" widgetVar="tabRecherche" id="tabRecherche"
                                 paginatorPosition="bottom"  rows="14"
                                 paginatorTemplate="{Exporters} {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} 
                                 {RowsPerPageDropdown} {JumpToPageDropdown} {Controle}" 
                                 >
                        <p:ajax event="rowSelect"  listener="#{cashMvtView.onRowSelect}"  update="form form2" id="ajaxRS" />

                            <p:column style="white-space: nowrap" headerText="#{msg['Portfolio']}" sortBy="#{cashMvt.portfolio}" ><h:outputText value="#{cashMvt.portfolio}" /></p:column>
                            <p:column style="white-space: nowrap" headerText="#{msg['Cashaccount']}" sortBy="#{cashMvt.cashAccount}" ><h:outputText value="#{cashMvt.cashAccount}"/> </p:column>

cashMvtView.listeFilteredCashMvt是一个列表，该列表返回我要在表单中显示的内容

这是我的网络应用程序的屏幕，请在此处输入图片描述

如您所见，所有字段均应查询为“ comptes especes”（我的代码中的现金帐户）。请注意，此屏幕中的“ portefeuille”是我的代码中的投资组合。

Answer 1

我解决了这个问题：我在数据表的cashMvtView.onRowSelect中添加了此代码。

 public void onRowSelect(SelectEvent event) {
    beanCashMvt = mapper.map(selectedCashMvt, HcashMvtVO.class)  ;         
    if (beanCashMvt.getPortfolio() != null && !beanCashMvt.getPortfolio().equals("")) {
        cashAccounts = data.get(beanCashMvt.getPortfolio());
    } else {
        cashAccounts = new HashMap<String, String>();
    }
}