logo标签列表

java.lang.UnsupportedOperationException: 当未使用基本rowKey算法时，必须实现getRowData(String rowKey)。

jsfprimefacesjsf-2.2
10
我已将PrimeFaces从5.1 final升级到5.2 final(社区发布版)。我有一个<p:dataTable>，如下所示进行了懒加载（仅为了纯测试目的而提供的最小化示例，以重现问题）。
<p:dataTable  var="row"
              value="#{testManagedBean}"
              lazy="true"
              editable="true"
              rowKey="#{row.fruitId}"
              selection="#{testManagedBean.selectedValues}"
              rows="50">

    <p:column selectionMode="multiple"/>

    <p:ajax event="rowEdit" listener="#{testManagedBean.onRowEdit}"/>

    <p:column headerText="Id">
        <h:outputText value="#{row.fruitId}"/>
    </p:column>

    <p:column headerText="Fruit Name">
        <p:cellEditor>
            <f:facet name="output">
                <h:outputText value="#{row.fruitName}"/>
            </f:facet>
            <f:facet name="input">
                <p:inputText value="#{row.fruitName}"/>
            </f:facet>
        </p:cellEditor>
    </p:column>

    <p:column headerText="Price">
        <p:cellEditor>
            <f:facet name="output">
                <h:outputText value="#{row.price}"/>
            </f:facet>
            <f:facet name="input">
                <p:inputText value="#{row.price}"/>
            </f:facet>
        </p:cellEditor>
    </p:column>

    <p:column headerText="Edit">
        <p:rowEditor/>
    </p:column>
</p:dataTable>

对应的托管Bean：

@Named
@ViewScoped
public class TestManagedBean extends LazyDataModel<Fruit>  implements Serializable {

    private List<Fruit> selectedValues; // Getter & setter.
    private static final long serialVersionUID = 1L;

    public TestManagedBean() {}

    private List<Fruit> init() {
        List<Fruit> fruits = new ArrayList<Fruit>();

        Fruit fruit = new Fruit();
        fruit.setFruitId(1);
        fruit.setFruitName("Mango");
        fruit.setPrice(500D);
        fruits.add(fruit);

        fruit = new Fruit();
        fruit.setFruitId(2);
        fruit.setFruitName("Guava");
        fruit.setPrice(300D);
        fruits.add(fruit);

        fruit = new Fruit();
        fruit.setFruitId(3);
        fruit.setFruitName("Apple");
        fruit.setPrice(600D);
        fruits.add(fruit);
        return fruits;
    }

    @Override
    public List<Fruit> load(int first, int pageSize, String sortField, SortOrder sortOrder, Map<String, Object> filters) {
        List<Fruit> fruits = init();
        setRowCount(fruits.size());
        return fruits;
    }

    public void onRowEdit(RowEditEvent event) {
        System.out.println("id : "+((Fruit)event.getObject()).getFruitId());
    }
}

在编辑时，应该调用onRowEdit()方法，该方法已绑定到

<p:ajax event="rowEdit" listener="#{testManagedBean.onRowEdit}"/>

当一行处于编辑模式且被标记为勾号的更新链接被点击时，会引发以下异常。

Info:   java.lang.UnsupportedOperationException: getRowData(String rowKey) must be implemented when basic rowKey algorithm is not used.
java.lang.UnsupportedOperationException: getRowData(String rowKey) must be implemented when basic rowKey algorithm is not used.
    at org.primefaces.model.LazyDataModel.getRowData(LazyDataModel.java:95)
    at org.primefaces.component.datatable.DataTable.getRowData(DataTable.java:1214)
    at org.primefaces.component.datatable.feature.SelectionFeature.decodeMultipleSelection(SelectionFeature.java:90)
    at org.primefaces.component.datatable.feature.SelectionFeature.decode(SelectionFeature.java:48)
    at org.primefaces.component.datatable.DataTableRenderer.decode(DataTableRenderer.java:62)
    at javax.faces.component.UIComponentBase.decode(UIComponentBase.java:834)
    at org.primefaces.component.api.UIData.processDecodes(UIData.java:281)
    at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:573)
    at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183)
    at org.primefaces.component.api.UIData.visitTree(UIData.java:821)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1690)
    at javax.faces.component.UIForm.visitTree(UIForm.java:380)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1690)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1690)
    at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:403)
    at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:266)
    at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:60)
    at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:930)
    at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:660)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:415)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:282)
    at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
    at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:201)
    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:175)
    at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
    at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561)
    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:565)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:545)
    at java.lang.Thread.run(Thread.java:745)

Warning:   java.lang.UnsupportedOperationException: getRowData(String rowKey) must be implemented when basic rowKey algorithm is not used.
javax.faces.FacesException: java.lang.UnsupportedOperationException: getRowData(String rowKey) must be implemented when basic rowKey algorithm is not used.
    at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:273)
    at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:60)
    at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:930)
    at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:660)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:415)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:282)
    at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
    at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:201)
    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:175)
    at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
    at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561)
    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:565)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:545)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.UnsupportedOperationException: getRowData(String rowKey) must be implemented when basic rowKey algorithm is not used.
    at org.primefaces.model.LazyDataModel.getRowData(LazyDataModel.java:95)
    at org.primefaces.component.datatable.DataTable.getRowData(DataTable.java:1214)
    at org.primefaces.component.datatable.feature.SelectionFeature.decodeMultipleSelection(SelectionFeature.java:90)
    at org.primefaces.component.datatable.feature.SelectionFeature.decode(SelectionFeature.java:48)
    at org.primefaces.component.datatable.DataTableRenderer.decode(DataTableRenderer.java:62)
    at javax.faces.component.UIComponentBase.decode(UIComponentBase.java:834)
    at org.primefaces.component.api.UIData.processDecodes(UIData.java:281)
    at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:573)
    at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183)
    at org.primefaces.component.api.UIData.visitTree(UIData.java:821)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1690)
    at javax.faces.component.UIForm.visitTree(UIForm.java:380)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1690)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1690)
    at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:403)
    at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:266)
    ... 34 more

Severe:   java.lang.UnsupportedOperationException: getRowData(String rowKey) must be implemented when basic rowKey algorithm is not used.
    at org.primefaces.model.LazyDataModel.getRowData(LazyDataModel.java:95)
    at org.primefaces.component.datatable.DataTable.getRowData(DataTable.java:1214)
    at org.primefaces.component.datatable.feature.SelectionFeature.decodeMultipleSelection(SelectionFeature.java:90)
    at org.primefaces.component.datatable.feature.SelectionFeature.decode(SelectionFeature.java:48)
    at org.primefaces.component.datatable.DataTableRenderer.decode(DataTableRenderer.java:62)
    at javax.faces.component.UIComponentBase.decode(UIComponentBase.java:834)
    at org.primefaces.component.api.UIData.processDecodes(UIData.java:281)
    at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:573)
    at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183)
    at org.primefaces.component.api.UIData.visitTree(UIData.java:821)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1690)
    at javax.faces.component.UIForm.visitTree(UIForm.java:380)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1690)
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1690)
    at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:403)
    at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:266)
    at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:60)
    at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:930)
    at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:660)
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1682)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:318)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:160)
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:734)
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:673)
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:99)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:174)
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:415)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:282)
    at com.sun.enterprise.v3.services.impl.ContainerMapper$HttpHandlerCallable.call(ContainerMapper.java:459)
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
    at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:201)
    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:175)
    at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
    at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561)
    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:56)
    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:137)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:565)
    at org.glassfish.grizzly.threadpool.AbstractThreadPool$Worker.run(AbstractThreadPool.java:545)
    at java.lang.Thread.run(Thread.java:745)

出现这种情况是因为给定的<p:dataTable>使用了rowKey="#{row.fruitId}"。

只有当从关联的托管bean中删除rowKey属性并实现getRowKey()和getRowData()方法时，异常才会消失，如下所示。

@Override
public Object getRowKey(Fruit fruit) {
    return fruit != null ? fruit.getFruitId() : null;
}

@Override
public Fruit getRowData(String rowKey) {
    List<Fruit> fruits = (List<Fruit>) getWrappedData();
    Integer value = Integer.valueOf(rowKey);

    for (Fruit fruit : fruits) {
        if (fruit.getFruitId().equals(value)) {
            return fruit;
        }
    }

    return null;
}

在最新版本的PrimeFaces（5.2 final）中，是否需要强制执行以前版本的PrimeFaces（5.1 final）不需要的内容？

在Mojarra 2.3.0-m02上进行了测试。我假设这个Mojarra版本应该与此无关。

2
这可能会因为表述不当或者失礼等原因被删除，但是你有使用任何搜索功能并查看了PrimeFaces论坛吗？最近几周已经在那里多次讨论过了。其他人可能会因为得出正确答案而获得声誉。编辑：抱歉Tiny，我现在才看到是'你'，不过我的评论仍然具有价值。请见http://forum.primefaces.org/viewtopic.php?f=3&t=41556 - Kukeltje
刚看了一下，正如@Kukeltje所说，我发现：我们通过设计更改了那部分，因为使用LazyDataModel处理rowKey属性是不正确的。 我认为这完全有道理，在懒加载数据模型中不能信任该ID已经完全初始化。但是，您可以依靠操作监听器，在请求时从控制器中加载它。这是线程：http://forum.primefaces.org/viewtopic.php?f=3&t=41556 - Aritz
这一次，我来不及升级PrimeFaces并且不能使用其发布的候选版本，因为我的应用程序严重依赖于PrimeFaces扩展，而其正式版本刚刚在几个小时前发布。这需要现在在多个地方调整代码。 - Tiny
@Kukeltje：您想回答这个问题吗？否则，您可以引用PrimeFaces社区论坛中的内容。删除问题本身并没有太多意义。谢谢。 - Tiny
好的，但你也可以这样做。这并不总是关于声望分数的 ;) - Kukeltje
1个回答
10
正如在指向PrimeFaces社区论坛的此链接中提到的那样，

我们通过设计更改了该部分，因为使用LazyDataModel处理rowKey属性是不正确的。

每当使用LazyDataModel<T>时，需要在关联的托管bean中实现这两个方法getRowKey()和getRowData()，如问题所示。

来自PrimeFaces用户指南（PDF） - （5.1（第164页）和5.2（第166页））：

惰性加载是一种有效处理大型数据集的方法，常规基于ajax的分页仅呈现特定页面，但仍需要将所有数据加载到内存中。惰性加载datatable以类似的方式呈现特定页面，但也仅将页面数据加载到内存中而不是整个数据集。为了实现这一点，您需要将org.primefaces.model.LazyDataModel绑定为值，并实现load方法并启用惰性选项。如果启用选择，则还需要实现getRowData和getRowKey。

当lazy禁用（默认为false）并启用行选择时，可以使用属性rowKey。

来自PrimeFaces用户指南（PDF） - （5.1（第159页）和5.2（第161页））：

RowKey应该是数据模型中的唯一标识符，并由datatable用于查找所选行。您可以通过使用rowKey属性或绑定实现org.primefaces.model.SelectableDataModel的数据模型来定义此键。

例如：
<p:dataTable var="car"
             value="#{carBean.cars}"
             selection="#{carBean.selectedCars}"
             rowKey="#{car.id}">

    <p:column selectionMode="multiple"/>
    <!--columns-->
</p:dataTable>
网页内容由stack overflow 提供, 点击上面的
可以查看英文原文，
原文链接