f:param 或 f:attribute 支持 primefaces 自动完成? [英] f:param or f:attribute support on primefaces autocomplete?

问题描述

我读过核心 JSF 组件支持 f:param 和 f:attribute 标签，以便将一些值传递给服务器端用于封闭 UI组件.

I've read that the core JSF components support the f:param and f:attribute tag, in order to pass some values to the serverside for the enclosing UI Components.

我需要能够为 primefaces 的自动完成组件执行此操作，以便自动完成方法能够使用 f:param 或 f:attribute 提供的参数.我尝试寻找方法来实现这一点，并发现完整的方法参数是固定的，不能带更多的参数，因此我在考虑使用 f:param 或 f:attribute.

There's a need for me to be able to do this for primefaces' autocomplete component, so that the autocomplete method will be able to make use of the parameter supplied by the f:param or f:attribute. I tried finding out ways to accomplish this, and found out that the complete method parameter is fixed and cannot take more arguments, hence im thinking of using f:param or f:attribute.

我使用的是 2.2.x 版本，根据我的实验，我似乎无法让 f:param 或 f:attribute 工作

Im use the 2.2.x version, and based on my experiment, i cant seem to get the f:param or the f:attribute working

<p:autocomplete ...>
   <f:param name="myParam" value="xxxx" />
</p:autocomplete>

primefaces 是否会在自动完成组件上支持此功能?无论如何我可以找出哪些标签支持参数，哪些标签不支持?

Is primefaces going to support this feature on the autocomplete component ? Is there anyway i can find out which tags that support the parameters and those who dont ?

谢谢！

推荐答案

我终于搞定了！

这是jsf部分:

<p:autoComplete id="#{cc.attrs.id}" label="#{cc.attrs.label}"
    ....
    completeMethod="#{filterableRaceAutocompleteBean.filterRace}">

    <f:attribute name="filter" value="#{cc.attrs.filter}" />

</p:autoComplete>

这是来源:

public List<Dto> filterRace(String filterString) {
    String filterValue = (String) UIComponent.getCurrentComponent(FacesContext.getCurrentInstance()).getAttributes().get("filter");
    log.debug("filter string : " + filterString + ", with query filter of : " + filterValue);

    ....

    return result;
}

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