java.lang.UnsupportedOperationException: getRowData(String rowKey) 必须在不使用基本 rowKey 算法时实现
java.lang.UnsupportedOperationException: getRowData(String rowKey) must be implemented when basic rowKey algorithm is not used
我已将 PrimeFaces 从 5.1 最终版升级到 5.2 最终版（社区版）。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>
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 onRowEdit() 方法时应该调用绑定到的方法，
<p:ajax event="rowEdit" listener="#{testManagedBean.onRowEdit}"/>
当某行处于编辑模式并且单击勾号标记的更新 link 时，会导致抛出以下异常。
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.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.access0(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.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.access0(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.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.access0(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。
仅当移除rowKey 属性并在关联的托管bean 中实现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 最终版）中是否强制要求，而在先前版本的 PrimeFaces（5.1 最终版）中不需要？
在 Mojarra 2.3.0-m02 上测试。我推测应该与此版本的 Mojarra 没有任何关联。
如 this link 中提到的指向 PrimeFaces 社区论坛，
We changed that part by design cause the rowKey attribute handling
with a LazyDataModel is not correct.
这两个方法 getRowKey() 和 getRowData() 需要在关联的托管 bean 中实现，只要 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.
当禁用 lazy 时，可以使用属性 rowKey -- 设置为 false（默认值）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.
例如，
<p:dataTable var="car"
value="#{carBean.cars}"
selection="#{carBean.selectedCars}"
rowKey="#{car.id}">
<p:column selectionMode="multiple"/>
<!--columns-->
</p:dataTable>
我已将 PrimeFaces 从 5.1 最终版升级到 5.2 最终版（社区版）。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>
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 onRowEdit() 方法时应该调用绑定到的方法，
<p:ajax event="rowEdit" listener="#{testManagedBean.onRowEdit}"/>
当某行处于编辑模式并且单击勾号标记的更新 link 时，会导致抛出以下异常。
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$HttpHandlerCallable.call(ContainerMapper.java:459)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:201)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:175)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
at org.glassfish.grizzly.filterchain.ExecutorResolver.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access0(WorkerThreadIOStrategy.java:56)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$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$HttpHandlerCallable.call(ContainerMapper.java:459)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:201)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:175)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
at org.glassfish.grizzly.filterchain.ExecutorResolver.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access0(WorkerThreadIOStrategy.java:56)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$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$HttpHandlerCallable.call(ContainerMapper.java:459)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:167)
at org.glassfish.grizzly.http.server.HttpHandler.runService(HttpHandler.java:201)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:175)
at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:235)
at org.glassfish.grizzly.filterchain.ExecutorResolver.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:284)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:201)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:133)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:561)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:117)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access0(WorkerThreadIOStrategy.java:56)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$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。
仅当移除rowKey 属性并在关联的托管bean 中实现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 最终版）中是否强制要求，而在先前版本的 PrimeFaces（5.1 最终版）中不需要？
在 Mojarra 2.3.0-m02 上测试。我推测应该与此版本的 Mojarra 没有任何关联。
如 this link 中提到的指向 PrimeFaces 社区论坛，
We changed that part by design cause the
rowKeyattribute handling with aLazyDataModelis not correct.
这两个方法 getRowKey() 和 getRowData() 需要在关联的托管 bean 中实现，只要 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.LazyDataModelas the value and implement load method and enable lazy option. Also it is required to implementgetRowDataandgetRowKeyif you have selection enabled.
当禁用 lazy 时，可以使用属性 rowKey -- 设置为 false（默认值）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
rowKeyattribute or by binding a data model which implementsorg.primefaces.model.SelectableDataModel.
例如，
<p:dataTable var="car"
value="#{carBean.cars}"
selection="#{carBean.selectedCars}"
rowKey="#{car.id}">
<p:column selectionMode="multiple"/>
<!--columns-->
</p:dataTable>