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jsf - java.lang.UnsupportedOperationException : getRowData(String rowKey) must be implemented when basic rowKey algorithm is not used

转载 作者:行者123 更新时间:2023-12-04 04:04:52 27 4
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我已将 PrimeFaces 从 5.1 final 升级到 5.2 final(社区版本)。我有一个 <p:dataTable>延迟加载如下(仅出于纯测试目​​的重现问题的最小示例)。

<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>

相应的托管 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());
}
}

编辑 onRowEdit() 时应该调用绑定(bind)到的方法,
<p:ajax event="rowEdit" listener="#{testManagedBean.onRowEdit}"/>

当一行处于编辑模式时,点击了勾号标记的更新链接时,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)

这不应该发生,因为 rowKey="#{row.fruitId}"与给定的 <p:dataTable> 一起使用.

只有当 rowKey属性被删除, getRowKey()getRowData()方法在关联的托管 bean 中实现如下。
@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 PrimeFaces 的先前版本(5.1 最终版)中不需要的 PrimeFaces(5.2 最终版)的最新版本中是强制性的吗?

在 Mojarra 2.3.0-m02 上测试。我认为这个版本的 Mojarra 不应该有任何相关性。

最佳答案

this 中所述指向 PrimeFaces 社区论坛的链接,

We changed that part by design cause the rowKey attribute handling with a LazyDataModel is not correct.



这两种方法 getRowKey()getRowData()需要在相关的托管 bean 中实现 LazyDataModel<T>如问题所示使用。

来自 PrimeFaces User Guide (PDF) - (5.1(第 164 页)和 5.2(第 166 页)):

Lazy Loading is an approach to deal with huge datasets efficiently, regular ajax based pagination works by rendering only a particular page but still requires all data to be loaded into memory. Lazy loading datatable renders a particular page similarly but also only loads the page data into memory not the whole dataset. In order to implement this, you’d need to bind a org.primefaces.model.LazyDataModel as the value and implement load method and enable lazy option. Also it is required to implement getRowData and getRowKey if you have selection enabled.



属性 rowKey可以使用,当 lazy已禁用 -- 设置为 false (默认)并启用行选择。

来自 PrimeFaces User Guide (PDF) - (5.1(第 159 页)和 5.2(第 161 页)):

RowKey should a unique identifier from your data model and used by datatable to find the selected rows. You can either define this key by using the rowKey attribute or by binding a data model which implements org.primefaces.model.SelectableDataModel.



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

<p:column selectionMode="multiple"/>
<!--columns-->
</p:dataTable>

关于jsf - java.lang.UnsupportedOperationException : getRowData(String rowKey) must be implemented when basic rowKey algorithm is not used,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/29816172/

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