我正在使用PF 5.0，JSF 2.0（Mojarra），Spring Webflow 2.3。我在使用Datatable Lazy加载时面临多个问题。
a。）当我尝试为DataTable组件使用具有延迟数据模型的列进行多重选择时，当我为数据表启用单选时，它可以正常工作。 b。）我面对Datatable的另一个问题是我无法使用Lazy Data表加载动态列，它曾经适用于非Lazy版本。
欢迎任何解决这些问题的建议。请找到以下代码。
<p:dataTable id="docsTable" var="document"
value="#{datasource}" lazy="true" paginator="true" dynamic="true"
rows="#{searchActionBean.maxRows}" paginatorTemplate="{FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}"
rowsPerPageTemplate="10,25,50,100" rowKey="#{document.ID}"
sortMode="single" resizableColumns="true" scrollable="true" scrollHeight="350" >
<f:facet name="header">
<p:toolbar>
<f:facet name="left">
<p:commandButton type="button" title="Print" icon="ui-icon-print" />
<span class="ui-separator">
<span class="ui-icon ui-icon-grip-dotted-vertical" />
</span>
<p:commandButton id="reptoggler" value="Reports" action="reportsAction" icon="ui-icon-note">
<f:param name="stdReportName" value="reportsMain" />
</p:commandButton>
</f:facet>
<f:facet name="right">
<h:outputText value="#{searchActionBean.domainName}" />(<h:outputText value="#{searchActionBean.resultCount}" />)
<span class="ui-separator">
<span class="ui-icon ui-icon-grip-dotted-vertical" />
</span>
<h:commandLink>
<img src="${request.contextPath}/images/excel.png" width="15" height="15" />
<p:dataExporter type="xls" target="docsTable" fileName="documents" />
</h:commandLink>
<span class="ui-separator">
<span class="ui-icon ui-icon-grip-dotted-vertical" />
</span>
<h:commandLink>
<img src="${request.contextPath}/images/pdf.png" width="15" height="15"/>
<p:dataExporter type="pdf" target="docsTable" fileName="documents" />
</h:commandLink>
<span class="ui-separator">
<span class="ui-icon ui-icon-grip-dotted-vertical" />
</span>
<p:commandButton id="toggler" type="button" value="Columns" icon="ui-icon-calculator" />
<p:columnToggler datasource="docsTable" trigger="toggler" />
</f:facet>
</p:toolbar>
</f:facet>
<p:column selectionMode="multiple" style="text-align:center; width:25px">
<f:facet name="header">
<h:outputText value="Select" />
</f:facet>
</p:column>
<p:columns value="#{searchResultsColumns}" var="column" styleClass="wrap" width="#{column.width}" columnIndexVar="colIndex" sortBy="#{document[column.pfResColumnName]}" filterBy="#{document[column.pfResColumnName]}">
<f:facet name="header">
<h:outputText value="#{column.displayResultColumnName}" />
</f:facet>
<h:outputText value="#{document[column.pfResColumnName]}" rendered="#{column.resColumnType eq 'DATE'}">
<f:convertDateTime pattern="MM/dd/yyyy" />
</h:outputText>
<h:outputText value="#{document[column.pfResColumnName]}" rendered="#{column.resColumnType eq null}" />
<h:outputText value="#{document[column.pfResColumnName]}" rendered="#{column.resColumnType eq 'SPL'}">
<f:converter converterId="gov.nih.nci.ctep.idart.converters.SplConverter"></f:converter>
</h:outputText>
</p:columns>
</p:dataTable>
和Bean代码一样，我已经验证了Collections searchResultColumns不为空。
public class SearchActionBean extends LazyDataModel<DocumentResultDTO> implements Serializable
{
private List<DocumentResultDTO> datasource;
@Override
public DocumentResultDTO getRowData(String rowKey) {
for (DocumentResultDTO doc : datasource) {
if (doc.getID().equals(rowKey))
return doc;
}
return null;
}
@Override
public Object getRowKey(DocumentResultDTO doc) {
return doc.getID();
}
@Override
public List<DocumentResultDTO> load(int first, int pageSize, String sortField,
SortOrder sortOrder, Map<String, Object> filters) {
datasource = new ArrayList<DocumentResultDTO>();
/*this.execute();*/
commonQueriesLocal = ejbService.getCommonQueriesLocal();
srchDelegate = new SearchDelegate();
super.setSearchDelegate(srchDelegate);
try
{
//Set the visibility of all the columns depending on the JQuery table visibility setting from the client side
String invisibleColNames = request.getParameter("invisibleColNames");
ArrayList<UserResultColumnDTO> dispCols = getDisplayColumns();
ApplicationUtils.markVisibilityForColumns(dispCols,invisibleColNames);
int iSortColumnIndex = 1;
String sSortDirection = sortOrder.toString().equalsIgnoreCase("ASCENDING") ? "asc" : "desc";
if(request.getParameter("iSortCol_0") != null)
iSortColumnIndex = Integer.parseInt(request.getParameter("iSortCol_0"));
Query query =
(Query) request.getSession().getAttribute(IdartWebGlobalConstants.USER_QUERY);
if(request.getSession().getAttribute("executeSavedQuery") != null &&
request.getSession().getAttribute("executeSavedQuery").toString().equalsIgnoreCase("true")
)
pageSize = query.getUserQuery().getPageCount();
else
query.getUserQuery().setPageCount(pageSize);
query.getUserQuery().setSortOrder(sSortDirection);
setDataSortColumn(iSortColumnIndex, getDomainNameToSetSortColumn(query.getName()), query);
performNavigation(pageSize, first);
// Save the query object in session
if(getDomainName().equalsIgnoreCase("DOCUMENTS"))
{
setSearchResults((ArrayList)request.getAttribute("documentResults"));
setSearchResultsColumns(dispCols);
}
System.out.println("search Result "+searchResults.size());
System.out.println("search Columns "+dispCols.size());
// process on filters to be displayed
customizeFilterResults();
}
catch(Exception ex)
{
log.error("-- GetData Method Error "
+ ex.getMessage()
+ " --", ex);
}
datasource= getSearchResults();
System.out.println("first "+first+" pageSize "+pageSize+" sortField "+sortField+" sortOrder "+sortOrder);
System.out.println("searchResultsColumns"+datasource);
System.out.println("searchResultsColumns "+searchResultsColumns);
System.out.println("GET searchResultsColumns "+getSearchResultsColumns());
// rowCount
int dataSize = datasource.size();
this.setRowCount(Integer.parseInt(getResultCount()));
return datasource;
}
}