How to paginate with jsf

Question

is there a library to facilitate pagination ? example : if i return a list of 200 items and want to view them on my jsf pages 20 by 20, how do i do that ?
thx !

Answer 1

Have used both MyFaces and Jenia4Faces. The Jenia pager works fine.
example:
<t:panelGrid id="scroller" columns="1">
               <t:dataScroller
                    id="scroll_1"
                    for="reportTable"
                    paginator="true"
                    fastStep="10"
                    renderFacetsIfSinglePage="false"
                    paginatorMaxPages="10"
          paginatorActiveColumnStyle="font-weight:bold;background-color:#CECECE;"
                    style="height:30px;">
                    <f:facet name="first">
                         <h:outputText value="|<"
                                        styleClass="btnDetail"
                                        onmouseover="this.className='btnDetailOver'"
                                        onmouseout="this.className='btnDetail'"/>
                    </f:facet>
                    <f:facet name="previous">
                         <h:outputText value="<"
                                        styleClass="btnDetail"
                                        onmouseover="this.className='btnDetailOver'"
                                        onmouseout="this.className='btnDetail'"/>
                    </f:facet>
                    <f:facet name="next">
                         <h:outputText value=">"
                                        styleClass="btnDetail"
                                        onmouseover="this.className='btnDetailOver'"
                                        onmouseout="this.className='btnDetail'"/>
                    </f:facet>
                    <f:facet name="last">
                         <h:outputText value=">|"
                                        styleClass="btnDetail"
                                        onmouseover="this.className='btnDetailOver'"
                                        onmouseout="this.className='btnDetail'"/>
                    </f:facet>
                    <f:facet name="fastforward">
                         <h:outputText value=">>"
                                        styleClass="btnDetail"
                                        onmouseover="this.className='btnDetailOver'"
                                        onmouseout="this.className='btnDetail'"/>
                    </f:facet>
                    <f:facet name="fastrewind">
                         <h:outputText value="<<"
                                        styleClass="btnDetail"
                                        onmouseover="this.className='btnDetailOver'"
                                        onmouseout="this.className='btnDetail'"/>
                    </f:facet>
               </t:dataScroller>
               <t:dataScroller
                    id="subInfo"
                    for="reportTable"
                    rowsCountVar="rowsCount"
                    displayedRowsCountVar="displayedRowsCountVar"
                    firstRowIndexVar="firstRowIndex"
                    lastRowIndexVar="lastRowIndex"
                    pageCountVar="pageCount"
                    pageIndexVar="pageIndex">
                         <h:outputFormat value="#{msg['orderView_dataScroller']}" styleClass="standard" >
                           <f:param value="#{rowsCount}" />
                           <f:param value="#{displayedRowsCountVar}" />
                           <f:param value="#{firstRowIndex}" />
                           <f:param value="#{lastRowIndex}" />
                           <f:param value="#{pageIndex}" />
                           <f:param value="#{pageCount}" />
                       </h:outputFormat>
               </t:dataScroller>
          </t:panelGrid>As far as my experience goes, there's no issues or problems with this Jenia feature.