Author: ishabalov Date: 2007-09-05 14:11:56 -0400 (Wed, 05 Sep 2007) New Revision: 2786 Modified: trunk/samples/richfaces-demo/src/main/java/org/richfaces/demo/extendeddatamodel/AuctionDataModel.java trunk/samples/richfaces-demo/src/main/java/org/richfaces/demo/extendeddatamodel/AuctionItem.java trunk/samples/richfaces-demo/src/main/webapp/richfaces/dataTable/examples/extendedDataModel.xhtml trunk/samples/richfaces-demo/src/main/webapp/richfaces/dataTable/extended-data-model.xhtml Log: More extended data model sample Modified: trunk/samples/richfaces-demo/src/main/java/org/richfaces/demo/extendeddatamodel/AuctionDataModel.java =================================================================== --- trunk/samples/richfaces-demo/src/main/java/org/richfaces/demo/extendeddatamodel/AuctionDataModel.java 2007-09-05 17:46:02 UTC (rev 2785) +++ trunk/samples/richfaces-demo/src/main/java/org/richfaces/demo/extendeddatamodel/AuctionDataModel.java 2007-09-05 18:11:56 UTC (rev 2786) @@ -17,10 +17,10 @@ * @author ias * This is example class that intended to demonstrate use of ExtendedDataModel and SerializableDataModel. * This implementation intended to be used as a request scope bean. However, it actually provides serialized - * state, so on a post-back we do not load data from the data provider. Instead we use whatever data was used + * state, so on a post-back we do not load data from the data provider. Instead we use data that was used * during rendering. - * This data model intended to be used together with Data Provider, which is responsible for actual data load - * from the database using specific filtering and sorting. Normally it suppose to be in either session, or conversation + * This data model must be used together with Data Provider, which is responsible for actual data load + * from the database using specific filtering and sorting. Normally Data Provider must be in either session, or conversation * scope. */ public class AuctionDataModel extends SerializableDataModel { Modified: trunk/samples/richfaces-demo/src/main/java/org/richfaces/demo/extendeddatamodel/AuctionItem.java =================================================================== --- trunk/samples/richfaces-demo/src/main/java/org/richfaces/demo/extendeddatamodel/AuctionItem.java 2007-09-05 17:46:02 UTC (rev 2785) +++ trunk/samples/richfaces-demo/src/main/java/org/richfaces/demo/extendeddatamodel/AuctionItem.java 2007-09-05 18:11:56 UTC (rev 2786) @@ -3,6 +3,7 @@ import javax.faces.application.FacesMessage; import javax.faces.component.UIComponent; import javax.faces.context.FacesContext; +import javax.faces.event.ActionEvent; public class AuctionItem { private Integer pk; @@ -60,25 +61,23 @@ public void setQtyAvialable(Integer qtyAvialable) { this.qtyAvialable = qtyAvialable; } - public String placeBid() { - if (qtyRequested!=null && bid!=null) { + public void placeBid(ActionEvent event) { + FacesContext ctx = FacesContext.getCurrentInstance(); + if (bid!=null) { System.out.println("place bid for pk="+getPk()+" bid="+getBid()+" qty="+getQtyRequested()); - FacesContext ctx = FacesContext.getCurrentInstance(); - if (qtyRequested>qtyAvialable) { - ctx.addMessage(null, new FacesMessage(FacesMessage.SEVERITY_ERROR,"Requested quantity is grater that avialable quantity","You cannot request more auction items, that actually avialable on auction")); - won = loose = false; - } else if (bid<=highestBid) { - ctx.addMessage(null, new FacesMessage(FacesMessage.SEVERITY_WARN,"Bid amount is lower that highest bid","You need to bid amount higher that highest bid")); + if (bid<=highestBid) { + ctx.addMessage(event.getComponent().getClientId(ctx), new FacesMessage(FacesMessage.SEVERITY_WARN,"Bid amount is lower that highest bid","You need to bid amount higher that highest bid")); won = false; loose = true; } else { highestBid = bid; won = true; loose = false; - amount = qtyRequested*bid; + amount = bid; } + } else { + ctx.addMessage(event.getComponent().getClientId(ctx), new FacesMessage(FacesMessage.SEVERITY_ERROR,"Bid value is missing","You must provide bid value")); } - return null; } public UIComponent getBidInput() { Modified: trunk/samples/richfaces-demo/src/main/webapp/richfaces/dataTable/examples/extendedDataModel.xhtml =================================================================== --- trunk/samples/richfaces-demo/src/main/webapp/richfaces/dataTable/examples/extendedDataModel.xhtml 2007-09-05 17:46:02 UTC (rev 2785) +++ trunk/samples/richfaces-demo/src/main/webapp/richfaces/dataTable/examples/extendedDataModel.xhtml 2007-09-05 18:11:56 UTC (rev 2786) @@ -4,13 +4,11 @@ xmlns:f="http://java.sun.com/jsf/core" xmlns:a4j="http://richfaces.org/a4j" xmlns:rich="http://richfaces.org/rich"> - - <rich:messages /> - + <rich:messages /> <h:form> <rich:datascroller for="auction" maxPages="5"/> <rich:spacer height="30" /> - <rich:dataTable id="auction" value="#{auctionDataModel}" var="item" rows="25"> + <rich:dataTable id="auction" value="#{auctionDataModel}" var="item" rows="10"> <rich:column> <f:facet name="header"> <h:outputText value="Description"/> @@ -27,29 +25,17 @@ </rich:column> <rich:column> <f:facet name="header"> - <h:outputText value="Qty Avialable"/> - </f:facet> - <h:outputText value="#{item.qtyAvialable}"/> - </rich:column> - <rich:column> - <f:facet name="header"> <h:outputText value="Your Bid"/> </f:facet> <h:inputText id="bid" value="#{item.bid}"> <f:convertNumber /> </h:inputText> - <a4j:commandLink action="#{item.placeBid}" value="Bid!" reRender="bid,qty,amount,highestBid" /> + <a4j:commandLink id="bid_link" actionListener="#{item.placeBid}" value="Place a bid!" reRender="bid,amount,highestBid" /> + <rich:message for="bid_link" /> + <rich:message for="bid" /> </rich:column> <rich:column> <f:facet name="header"> - <h:outputText value="Your Qty"/> - </f:facet> - <h:inputText id="qty" value="#{item.qtyRequested}"> - <f:convertNumber /> - </h:inputText> - </rich:column> - <rich:column> - <f:facet name="header"> <h:outputText value="Amount"/> </f:facet> <h:outputText id="amount" value="#{item.amount}" > Modified: trunk/samples/richfaces-demo/src/main/webapp/richfaces/dataTable/extended-data-model.xhtml =================================================================== --- trunk/samples/richfaces-demo/src/main/webapp/richfaces/dataTable/extended-data-model.xhtml 2007-09-05 17:46:02 UTC (rev 2785) +++ trunk/samples/richfaces-demo/src/main/webapp/richfaces/dataTable/extended-data-model.xhtml 2007-09-05 18:11:56 UTC (rev 2786) @@ -7,7 +7,29 @@ xmlns:rich="http://richfaces.org/rich"> <ui:composition template="/templates/component-sample.xhtml"> <ui:define name="sample"> - <p>Some explanation how to use ExtendedDataModel will be here + <p> +Perhaps the most obvious problem of DataTable and javax.faces.model.DataModel is lack of support for more complicated scenarios that uses +data from the database. +To solve that problem <b>Richfaces</b> has two major tools: +<ul> + <li> + set of data-driven components that render data sets in many different ways (<b>rich:dataTable</b> , <b>rich:dataGrid</b>, <b>rich:dataList</b>, <b>a4j:repeat</b> etc.). + All this components derived it common functionality from the common core that, in addition to standard javax.faces.model.DataModel, + can understand and use + </li> + <li> + extended data model classes <b>org.ajax4jsf.model.ExtendedDataModel</b> and <b>org.ajax4jsf.model.SerializableDataModel</b>. This two classes works + together to provide functions that missing in standard DataModel. + </li> +</ul> +The most important additional functions are: +<ul> + <li>access for rows by primary keys instead of index position</li> + <li>implementation of "visitor" pattern over the "range" of rows to support "table scroller" or "paginator" functions</li> + <li>ability to serialize table data so it may be used on a post-back processing without additional database query</li> +</ul> +To use this extensions you need to implement your own DataModel that extends one of our ExtendedDataModel classes and implement few of +important functions. Below is the example of such implementation. </p> <div class="sample-container" > @@ -18,7 +40,7 @@ </ui:include> <ui:include src="/templates/include/sourceview.xhtml"> - <ui:param name="sourcepath" value="/WEB-INF/src/org/richfaces/datatable/ExpenseReport.java"/> + <ui:param name="sourcepath" value="/WEB-INF/src/org/richfaces/demo/extendeddatamodel/AuctionDataModel.java"/> <ui:param name="openlabel" value="View Page Source" /> </ui:include>