最近,我的一个关于OmniFaces Ajax.updateColumn()的问题在以下链接得到了解答:
如何使用OmniFaces Ajax.updateColumn()或Ajax.updateRow()通过p:ajax
在那个情况下,dataTable是JSF标准的h:dataTable,效果很好。
现在,在这种情况下,我试图在enduser通过存在于p:dataTable之外的p:calendar组件选择日期时更新PrimeFaces p:dataTable。p:dataTable的xhtml如下:
<p:dataTable id="flightDataTable" var="flight"
value="#{pf_flightController.flightsForOrder}">
<p:column headerText="Airport" style="text-align: center !important;">
<p:inputText value="#{flight.airportTx}" maxlength="25" size="10" label="Airport"/>
</p:column>
<p:column headerText="Airline" style="text-align: center !important;">
<p:inputText value="#{flight.airlineTx}" maxlength="25" size="10" label="Airline"/>
</p:column>
<p:column headerText="Flight Number" style="text-align: center !important;">
<p:inputText value="#{flight.flightNumber}" maxlength="8" size="10" label="Flight Number"/>
</p:column>
<p:column headerText="Type" style="text-align: center !important;">
<h:selectOneMenu value="#{flight.flightType}" label="Flight Type">
<f:selectItem itemValue="#{bundle.DropdownOptionValueArrive}" itemLabel="#{bundle.DropdownOptionLabelArrive}"/>
<f:selectItem itemValue="#{bundle.DropdownOptionValueDepart}" itemLabel="#{bundle.DropdownOptionLabelDepart}"/>
</h:selectOneMenu>
</p:column>
<p:column headerText="Date" style="text-align: center !important;">
<h:panelGroup rendered="#{pf_usersController.loggedInViaAndroid == 'N'}">
<p:calendar value="#{flight.flightDate}" navigator="true"
label="Flight Date"
pattern="MM/dd/yyyy" size="10">
<f:convertDateTime pattern="MM/dd/yyyy" />
</p:calendar>
</h:panelGroup>
<h:panelGroup rendered="#{pf_usersController.loggedInViaAndroid == 'Y'}">
<p:inputText value="#{flight.flightDate}"
label="Flight Date" type="date">
<f:convertDateTime pattern="yyyy-MM-dd" />
</p:inputText>
</h:panelGroup>
</p:column>
<p:column headerText="Time" style="text-align: center !important;">
<h:panelGroup rendered="#{pf_usersController.loggedInViaAndroid == 'N'}">
<pe:timePicker value="#{flight.flightTime}"
label="Flight Time" mode="popup"
showPeriod="true" style="width: 80px;">
<f:convertDateTime pattern="hh:mm a" />
</pe:timePicker>
</h:panelGroup>
<h:panelGroup rendered="#{pf_usersController.loggedInViaAndroid == 'Y'}">
<p:inputText value="#{flight.flightTime}"
label="Flight Time" type="time">
<f:convertDateTime pattern="HH:mm" />
</p:inputText>
</h:panelGroup>
</p:column>
</p:dataTable>
在生产环境中,p:calendar p:ajax update="..." 更新了整个航班p:dataTable,因此p:dataTable中的日期列被成功更新。我知道,如果它没有出现问题,就不要修复它,但今天我正在修改这段代码和xhtml,所以我想使用OmniFaces Ajax实用程序的updateColumn()来仅更新此PrimeFaces p:dataTable的所有行的'一个'列。
下面是当最终用户通过p:calendar选择日期时执行的代码片段; 这是调用OmniFaces Ajax实用程序的updateColumn()的代码。
private void updateFlightDateOnAdd() {
flightController.updateFlightDateOnAdd(current.getTripDateTime());
UIData flightsDataTable = null;
try {
flightsDataTable = (UIData) Components.findComponent(":orderAddForm:flightDataTable");
} catch (Exception e) {
System.out.println("pf_OrdersController.updateFlightDateOnAdd(): caught exception on Components.findComponent(...)");
}
if (flightsDataTable != null) {
System.out.println("pf_OrdersController.updateFlightDateOnAdd(): Components.findComponent(...) found " + flightsDataTable.getClientId());
Ajax.updateColumn(flightsDataTable, 4);
}
else {
System.out.println("pf_OrdersController.updateFlightDateOnAdd(): Components.findComponent(...) returned null");
}
}
以下是POJO(普通Java对象)的定义:
public class FlightForOrder {
private Integer flightId;
private String airportTx, airlineTx, flightNumber;
private Character flightType;
private Date flightDate, flightTime;
public FlightForOrder() {
}
public Integer getFlightId() {
return flightId;
}
public void setFlightId(Integer flightId) {
this.flightId = flightId;
}
public String getAirportTx() {
return airportTx;
}
public void setAirportTx(String airportTx) {
this.airportTx = airportTx;
}
public String getAirlineTx() {
return airlineTx;
}
public void setAirlineTx(String airlineTx) {
this.airlineTx = airlineTx;
}
public Date getFlightDate() {
return flightDate;
}
public void setFlightDate(Date flightDate) {
this.flightDate = flightDate;
}
public String getFlightNumber() {
return flightNumber;
}
public void setFlightNumber(String flightNumber) {
this.flightNumber = flightNumber;
}
public Date getFlightTime() {
return flightTime;
}
public void setFlightTime(Date flightTime) {
this.flightTime = flightTime;
}
public Character getFlightType() {
return flightType;
}
public void setFlightType(Character flightType) {
this.flightType = flightType;
}
@Override
public int hashCode() {
int hash = 3;
hash = 97 * hash + Objects.hashCode(this.flightId);
return hash;
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final FlightForOrder other = (FlightForOrder) obj;
if (!Objects.equals(this.flightId, other.flightId)) {
return false;
}
return true;
}
}
在测试过程中,服务器日志中出现了以下内容:
INFO: pf_OrdersController.updateFlightDateOnAdd(): Components.findComponent(...) found orderAddForm:flightDataTable
因此,这意味着我获得了PrimeFaces p:dataTable的良好参考,所以我将类型为UIData的组件传递给Ajax.updateColumn()。
最终结果是,OmniFaces Ajax实用程序的updateColumn()未更新PrimeFaces dataTable。
我只是注释掉了Ajax.updateColumn(...),并重新添加了update="..."到p:calendar p:ajax,然后PrimeFaces dataTable成功更新。
请建议我需要做什么来确保通过Ajax.updateColumn(...)更新PrimeFaces dataTable。谢谢。