java.lang.UnsupportedOperationException:当不使用基本rowKey算法时,必须实现getRowData(String rowKey) [英] java.lang.UnsupportedOperationException: getRowData(String rowKey) must be implemented when basic rowKey algorithm is not used
问题描述
我已将PrimeFaces从5.1最终版升级到5.2最终版(社区版本).我有一个<p:dataTable>
,它按如下方式延迟加载(一个仅出于纯粹测试目的而重现该问题的最小示例).
I have upgraded PrimeFaces from 5.1 final to 5.2 final (the Community Release). I have a <p:dataTable>
which is lazily loaded as follows (a minimal example to reproduce the problem for a pure testing purpose only).
<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());
}
}
在编辑onRowEdit()
方法时,应该调用绑定到该方法的
While editing the onRowEdit()
method is supposed to be invoked which is bound to,
<p:ajax event="rowEdit" listener="#{testManagedBean.onRowEdit}"/>
当一行处于编辑模式下并单击带有勾号的更新链接时,将引发以下异常.
When a row is in an edit mode and the update link marked by a tick is clicked, it causes the following exception to be thrown.
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.
This should not happen because rowKey="#{row.fruitId}"
is used with the given <p:dataTable>
.
仅当删除rowKey
属性并在关联的托管bean中实现getRowKey()
和getRowData()
方法时,该异常才会消失,如下所示.
The exception disappears only when the rowKey
attribute is removed and the getRowKey()
and the getRowData()
methods are implemented in the associated managed bean as follows.
@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(最终版5.2)中是强制性的吗?在以前版本的PrimeFaces(最终版5.1)中不需要吗?
Is it mandatory in the newest version of PrimeFaces (5.2 final) which was not needed in the previous version of PrimeFaces (5.1 final)?
在Mojarra 2.3.0-m02上测试.我以为这个版本的Mojarra应该没有任何意义.
推荐答案
如此链接指向PrimeFaces社区论坛,
As mentioned in this link pointing to the PrimeFaces Community Forum,
我们通过设计更改了该部分,导致
rowKey
属性处理LazyDataModel
是不正确的.
We changed that part by design cause the
rowKey
attribute handling with aLazyDataModel
is not correct.
如问题所示,每当使用LazyDataModel<T>
时,都需要在关联的受管bean中实现这两种方法getRowKey()
和getRowData()
.
Those two methods getRowKey()
and getRowData()
need to be implemented in the associated managed bean whenever LazyDataModel<T>
is used as shown in the question.
来自 PrimeFaces用户指南(PDF)-(5.1(第164页)和5.2(第166页) ):
From PrimeFaces User Guide (PDF) - (5.1 (page 164) and 5.2 (page 166)) :
惰性加载是一种有效处理庞大数据集的方法, 常规基于ajax的分页仅通过渲染特定的 页,但仍需要将所有数据加载到内存中.懒惰的 加载数据表将类似地呈现特定页面,但也仅 将页面数据而不是整个数据集加载到内存中.为了 实施此操作,您需要绑定一个
org.primefaces.model.LazyDataModel
作为值并实现负载 方法并启用懒惰选项. 还需要实施getRowData
和getRowKey
(如果已启用选择).
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 implementgetRowData
andgetRowKey
if you have selection enabled.
禁用lazy
时,可以使用属性rowKey
-设置为false
(默认值)并且启用行选择.
The attribute rowKey
may be used, when lazy
is disabled -- is set to false
(default) and row selection is enabled.
来自 PrimeFaces用户指南(PDF)-(5.1(第159页)和5.2(第161页) ):
From PrimeFaces User Guide (PDF) - (5.1 (page 159) and 5.2 (page 161)) :
RowKey应该是数据模型中的唯一标识符,并由 数据表以查找选定的行.您可以通过以下方式定义此键 使用
rowKey
属性或通过绑定数据模型 实现org.primefaces.model.SelectableDataModel
.
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 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>
这篇关于java.lang.UnsupportedOperationException:当不使用基本rowKey算法时,必须实现getRowData(String rowKey)的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!