仅带有Primefaces数据表的JSF上的操作审核

Question

I am currently auditing the user actions on a project and I am having the following Issue.
There is a functionality called Audit Log , which lists the complete set of Audited actions performed by the user on my system. Whenever a certain user lists the Audit Log this action needs to be Audited as well.
The JSF page the Audit Log is made is the following:

<ui:composition ...>
    <ui:define name="content">
        <h:form id="audit_List">
            <h:panelGrid columns="1">
                <p:breadCrumb>
                    <p:menuitem value="#{i18n['xxx']}" url="index.xhtml" />
                    <p:menuitem value="#{i18n['yyy']}"/>
                </p:breadCrumb>
                <p:panel header="#{i18n['zzz']}">
                    <p:dataTable var="auditEntry"
                                 value="#{auditList.allAuditEntries}"
                                 paginator="true"
                                 rows="10"
                                 paginatorPosition="top"
                                 dynamic="false">
                        <p:column sortBy="#{i18n[auditEntry.category]}"
                                  filterBy="#{i18n[auditEntry.category]}">
                            A column here
                        </p:column>
                        <p:column sortBy="#{auditEntryDescriptionI18N[auditEntry]}"
                                  filterBy="#{auditEntryDescriptionI18N[auditEntry]}">
                            A column here
                        </p:column>
                        <p:column sortBy="#{auditEntry.username}"
                                  filterBy="#{auditEntry.username}">
                            A column here
                        </p:column>
                        <p:column id="problematicColumn" 
                              sortBy="#{auditEntry.occurredOn}"
                              filterBy="#{auditEntry.occurredOn}">
                              <f:facet name="header">
                                       <h:outputText value="#{i18n['aaa']}"/>
                              </f:facet>
                              <h:outputText value="#{auditEntry.occurredOn}">
                                            <f:convertDateTime type="date"
                                                   ___I suspect pattern is giving the problem..___
                                                  pattern="{auditList.listDateFormat.stringValue}"
                                                  timeZone="#{sessionBean.serverTimeZone}"/>
                               </h:outputText>
                         </p:column>
                    </p:dataTable>
                </p:panel>
            </h:panelGrid>
        </h:form>
    </ui:define>
</ui:composition>

I have currently the Auditing action on the particular code snippet:

<p:dataTable var="auditEntry"
             value="#{auditList.allAuditEntries}"
             paginator="true"
             rows="10"
             paginatorPosition="top"
             dynamic="false">

My backing bean:

public List<AuditEntry> getAllAuditEntries()
    {
        auditFacade.createAuditEntry(function that creates an audit entry);
        return allAuditEntries;
    }

The problem of performing the auditting on the named action of the backing bean is the following:

Need a way to have the registration of consulting the Audit Log just once, and not as it is being shown on the images. Any ideas? Any way to user a JSF or related tag that will guarantee the above?

TL;DR Having just a PrimeFaces DataTable on a JSF page, how to audit the opening of such page in a way to have the audit registration on a single row, not as shown on the images.
Pd: It isnt feasible to re-edit all the repetitive audit entries filtering them by time difference

Answer 1

if it is possible to put the ManagedBean in RequestScope you could call the createAuditEntry method in the bean`s constructor. Then it is only called once per request.

Regards.

Answer 2

Solved my problem.
The backing bean is now ViewScoped and I just created a Boolean variable which ensures the Auditing is only done once per Bean ViewScope cycle.

public List<AuditEntry> getAllAuditEntries()
    {
        if (!isViewed)
        {
            isViewed = true;
            auditFacade.createAuditEntry(
                __creates Audit Entry here__);
        }

        return allAuditEntries;
    }