PrimeFaces p:ajax无法识别Facelet标记参数

jFr*_*tic 8 facelets primefaces jsf-2 glassfish-3

我有一个简单的Facelet标签:

<ui:composition>
  <ui:insert />
</ui:composition>
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这是为了避免声明多个c:set标签.
假设我在facelets taglib库中使用名称注册它view,并像这样使用它:

<my:view bean="#{myController}">
  <p:inputText value="#{bean.value}>
    <p:ajax event="blur" process="@this" listener="#{bean.handleValueChanged}" />
  </p:inputText>
</my:view>
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该属性value完全由你解决p:inputText,但p:ajax抛出这个:

Target Unreachable, identifier 'bean' resolved to null
javax.el.PropertyNotFoundException: Target Unreachable, identifier 'bean' resolved to null
    at com.sun.el.parser.AstValue.getTarget(AstValue.java:153)
    at com.sun.el.parser.AstValue.invoke(AstValue.java:237)
    at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:302)
    at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:39)
    at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50)
    at org.primefaces.component.behavior.ajax.AjaxBehaviorListenerImpl.processAjaxBehavior(AjaxBehaviorListenerImpl.java:47)
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这是一个错误或预期的行为?

更新:我刚用f:ajax尝试了同样的工作!

顺便说一句,环境如下:
Glassfish 3.1.2
PF 3.0,3.2,3.3

Update2:
这个问题RichFaces完全相同.似乎就像PrimeFaces的bug(我今天会在PF bug跟踪器上发布一个问题).

jFr*_*tic 4

我的同事刚刚提供了一个补丁来解决这个问题。

目前的实现情况AjaxBehaviorListenerImpl#processAjaxBehaviour如下:

public void processAjaxBehavior(AjaxBehaviorEvent event) throws AbortProcessingException {
        FacesContext context = FacesContext.getCurrentInstance();
        final ELContext elContext = context.getELContext();

        try{
            listener.invoke(elContext, new Object[]{});
        } catch (MethodNotFoundException mnfe) {
            MethodExpression argListener = context.getApplication().getExpressionFactory().
                        createMethodExpression(elContext, listener.getExpressionString(), null, new Class[]{event.getClass()});

            argListener.invoke(elContext, new Object[]{event});
        }
    }
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他建议这样调整:

import javax.faces.view.facelets.FaceletContext;
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public void processAjaxBehavior(AjaxBehaviorEvent event) throws AbortProcessingException {
        FacesContext context = FacesContext.getCurrentInstance();
        final ELContext elContext = context.getELContext();

        try{
            listener.invoke(elContext, new Object[]{});
        } catch (MethodNotFoundException mnfe) {
            FaceletContext fc = (FaceletContext) context.getAttributes().get(FaceletContext.FACELET_CONTEXT_KEY);
            MethodExpression argListener = context.getApplication().getExpressionFactory().
                        createMethodExpression(fc, listener.getExpressionString(), null, new Class[]{ event.getClass() });

            argListener.invoke(elContext, new Object[]{ event });
        }
    }
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希望这能得到 PF 团队的批准。