DataTable - Lazy DataTable has built-in support to deal with huge datasets. In order to enable lazy loading, a LazyDataModel needs to be implemented to query the datasource when pagination, sorting, filtering or live scrolling happens. This example uses an in-memory list to mimic a real datasource like a database.

In a real application, loading should be executed with the query built using the information passed to the load method.

IdYearBrandColor
3fd566612007RenaultRed
958cb80f1985AudiSilver
417ff17e2009VolvoWhite
152126751980JaguarRed
9bc8e8be2003MercedesBlue
7365a14a1962RenaultBlack
2f6311c41961VolvoSilver
eb8e47e22004VolkswagenMaroon
5cc2f1ff1989MercedesMaroon
7f3a8cd81963FiatYellow
Car Detail
<h:form id="form">
    <p:dataTable var="car" value="#{dtLazyView.lazyModel}" paginator="true" rows="10"
                 paginatorTemplate="{RowsPerPageDropdown} {FirstPageLink} {PreviousPageLink} {CurrentPageReport} {NextPageLink} {LastPageLink}"
                 rowsPerPageTemplate="5,10,15" selectionMode="single" selection="#{dtLazyView.selectedCar}" id="carTable" lazy="true">
        <p:ajax event="rowSelect" listener="#{dtLazyView.onRowSelect}" update=":form:carDetail" oncomplete="PF('carDialog').show()" />
        <p:column headerText="Id" sortBy="#{car.id}" filterBy="#{car.id}">
            <h:outputText value="#{car.id}" />
        </p:column>
        <p:column headerText="Year" sortBy="#{car.year}" filterBy="#{car.year}">
            <h:outputText value="#{car.year}" />
        </p:column>
        <p:column headerText="Brand" sortBy="#{car.brand}" filterBy="#{car.brand}">
            <h:outputText value="#{car.brand}" />
        </p:column>
        <p:column headerText="Color" sortBy="#{car.color}" filterBy="#{car.color}">
            <h:outputText value="#{car.color}" />
        </p:column>
    </p:dataTable>

    <p:dialog header="Car Detail" widgetVar="carDialog" modal="true" showEffect="fade" hideEffect="fade" resizable="false">
        <p:outputPanel id="carDetail" style="text-align:center;">
            <p:panelGrid  columns="2" rendered="#{not empty dtLazyView.selectedCar}" columnClasses="label,value">
                <f:facet name="header">
                    <p:graphicImage name="demo/images/car/#{dtLazyView.selectedCar.brand}-big.gif"/> 
                </f:facet>

                <h:outputText value="Id:" />
                <h:outputText value="#{dtLazyView.selectedCar.id}" />

                <h:outputText value="Year" />
                <h:outputText value="#{dtLazyView.selectedCar.year}" />

                <h:outputText value="Color:" />
                <h:outputText value="#{dtLazyView.selectedCar.color}" style="color:#{dtLazyView.selectedCar.color}"/>

                <h:outputText value="Price:" />
                <h:outputText value="#{dtLazyView.selectedCar.price}">
                    <f:convertNumber type="currency" currencySymbol="$" />
                </h:outputText>
            </p:panelGrid>
        </p:outputPanel>
    </p:dialog>
</h:form>
                
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