the method invoked twice,when render the page once!
chlol Oct 17, 2007 3:00 AMin my page ,only one place to inove the method,but it excuted twice,when render the page once
i search the solution in jboss forum and google,but i cann't solve it.
the code piece:
<s:decorate template="layout/display.xhtml"> <ui:define name="label">#{messages['task.principal']}</ui:define> <h:selectOneMenu id="userByPrincipalId" value="#{taskList.task.userByPrincipal.id}"> <f:selectItem itemValue="-1" itemLabel="#{messages['label.selectItem.message']}"/> <f:selectItems value="#{userList.selectItem}"/> </h:selectOneMenu> </s:decorate>
when the page render,the method getSelectItem in UserList invoked twice
my page
<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <ui:composition xmlns="http://www.w3.org/1999/xhtml" xmlns:s="http://jboss.com/products/seam/taglib" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html" xmlns:a="https://ajax4jsf.dev.java.net/ajax" xmlns:rich="http://richfaces.ajax4jsf.org/rich" template="layout/template.xhtml"> <ui:define name="body"> <h:messages globalOnly="true" styleClass="message" id="globalMessages" /> <h:form id="taskSearch" styleClass="edit"> <rich:simpleTogglePanel label="#{messages['subproject']} / #{messages['task']} #{messages['label.searchCondition.title']}" switchType="ajax"> <h:panelGrid columns="4" columnClass="gridContent" width="80%" algin="left"> <s:decorate template="layout/display.xhtml"> <ui:define name="label">#{messages['task.name']}</ui:define> <h:inputText id="name" value="#{taskList.task.name}"/> </s:decorate> <s:decorate template="layout/display.xhtml"> <ui:define name="label">#{messages['task.belongProject']}</ui:define> <h:selectOneMenu id="projectId" value="#{taskList.task.project.id}"> <f:selectItem itemValue="-1" itemLabel="#{messages['label.selectItem.message']}"/> <f:selectItems value="#{projectList.selectItemByOrdinary}"/> </h:selectOneMenu> </s:decorate> </h:panelGrid> <h:panelGrid columns="4" columnClass="gridContent" width="80%" algin="left"> <s:decorate template="layout/display.xhtml"> <ui:define name="label">#{messages['task.creator']}</ui:define> <h:selectOneMenu id="userByCreatorId" value="#{taskList.task.userByCreator.id}"> <f:selectItem itemValue="-1" itemLabel="#{messages['label.selectItem.message']}"/> <f:selectItems value="#{userList.selectItem}"/> </h:selectOneMenu> </s:decorate> <s:decorate template="layout/display.xhtml"> <ui:define name="label">#{messages['task.principal']}</ui:define> <h:selectOneMenu id="userByPrincipalId" value="#{taskList.task.userByPrincipal.id}"> <f:selectItem itemValue="-1" itemLabel="#{messages['label.selectItem.message']}"/> <f:selectItems value="#{userList.selectItem}"/> </h:selectOneMenu> </s:decorate> </h:panelGrid> <h:panelGrid columns="4" columnClass="gridContent" width="80%" algin="left"> <s:decorate template="layout/display.xhtml"> <ui:define name="label">#{messages['task.type']}</ui:define> <h:selectOneMenu id="type" value="#{taskList.task.leafFlag}"> <f:selectItem itemValue="-1" itemLabel="#{messages['label.selectItem.message']}"/> <f:selectItem itemValue="1" itemLabel="#{messages['subproject']}"/> <f:selectItem itemValue="0" itemLabel="#{messages['task']}"/> </h:selectOneMenu> </s:decorate> <s:decorate template="layout/display.xhtml"> <ui:define name="label">#{messages['task.state']}</ui:define> <h:selectOneMenu id="state" value="#{taskList.task.state}"> <f:selectItem itemValue="-1" itemLabel="#{messages['label.selectItem.message']}"/> <f:selectItems value="#{constants.taskState}"/> </h:selectOneMenu> </s:decorate> </h:panelGrid> </rich:simpleTogglePanel> <div class="actionButtons"> <table> <tr> <td align="left"> <h:commandButton action="/TaskList.xhtml?filter=default&proId=-2&parentId=-2" id="search" value="#{messages['button.search']}" /> <h:commandButton action="/TaskList.xhtml?filter=principalisme&proId=-2&parentId=-2" id="principalisme" value="#{messages['task.principalisme']}" > <s:conversationPropagation type="join"/> </h:commandButton> <h:commandButton action="/TaskList.xhtml?filter=creatorisme&proId=-2&parentId=-2" id="creatorisme" value="#{messages['task.creatorisme']}" /> <h:commandButton action="/TaskList.xhtml?filter=timeover&proId=-2&parentId=-2" id="timeover" value="#{messages['task.timeover']}"/> </td> <td align="right"> <s:button view="/TaskEdit.xhtml" id="createSubproject" value="#{messages['button.create']}#{messages['task.onelevelsubproject']}" rendered="#{projectList.isPrincipal()}"> <f:param name="tskId" value="0"/> <f:param name="taskId" /> <f:param name="tType" value="1" /> <s:conversationPropagation propagation="begin" /> </s:button> <s:button view="/TaskEdit.xhtml" id="createTask" value="#{messages['button.create']}#{messages['task.oneleveltask']}" rendered="#{projectList.isPrincipal()}"> <f:param name="tskId" value="0"/> <f:param name="taskId" /> <f:param name="tType" value="0" /> <s:conversationPropagation propagation="begin" /> </s:button> </td> </tr> </table> </div> <rich:panel style="padding:0" headerClass="outpanelHeader"> <h:panelGrid columns="2" columnClasses="gridContent"> <rich:panel bodyClass="inpanelBody"> <f:facet name="header"> #{messages['label.tree']} </f:facet> <div class="sample-container"> <rich:tree style="overflow:auto;width:288px;height:300px;" value="#{treeHome.data}" var="item" switchType="client" nodeFace="#{item.type}"> <rich:treeNode type="library"> <h:outputText value="#{item.type}" /> </rich:treeNode> <rich:treeNode type="project"> <h:outputText value="#{item.name}" /> <a:support event="onselected" reRender="resultTable"> <a:actionparam name="parentId" value="-1" assignTo="#{taskList.parentId}"/> <a:actionparam name="proId" value="#{item.id}" assignTo="#{taskList.projectId}"/> <a:actionparam name="order" value="beginDate asc" assignTo="#{taskList.order}"/> </a:support> </rich:treeNode> <rich:treeNode type="subproject"> <h:outputText value="#{item.name}" /> <a:support event="onselected" reRender="resultTable"> <a:actionparam name="proId" value="-1" assignTo="#{taskList.projectId}"/> <a:actionparam name="parentId" value="#{item.id}" assignTo="#{taskList.parentId}"/> <a:actionparam name="order" value="beginDate asc" assignTo="#{taskList.order}"/> </a:support> </rich:treeNode> <rich:treeNode type="task"> <h:outputText value="#{item.name}" /> <a:support event="onselected" reRender="resultTable"> <a:actionparam name="proId" value="-1" assignTo="#{taskList.projectId}"/> <a:actionparam name="parentId" value="#{item.id}" assignTo="#{taskList.parentId}"/> <a:actionparam name="order" value="beginDate asc" assignTo="#{taskList.order}"/> </a:support> </rich:treeNode> </rich:tree></div> </rich:panel> <a:outputPanel id="resultTable"> <rich:panel bodyClass="inpanelBody" style="overflow:auto;width:600px;height:385px;"> <f:facet name="header">#{messages['subproject']} / #{messages['task']} #{messages['label.searchResult.title']}</f:facet> <div class="results" id="taskList"><h:outputText value="#{messages['label.searchResult.null']}" rendered="#{empty taskList.resultList}" /> <!-- <h:outputText value="#{taskList.parentId}" id="test"/>--> <rich:datascroller for="taskList" rendered="#{taskList.resultList.size > 10}"/> <rich:dataTable id="taskList" var="task" value="#{taskList.resultList}" rendered="#{not empty taskList.resultList}" rowClasses="row1,row2" rows="10"> <h:column> <f:facet name="header"> <s:link styleClass="columnHeader" value="#{messages['task.name']} #{taskList.order=='name asc' ? messages.down : ( taskList.order=='name desc' ? messages.up : '' )}"> <f:param name="order" value="#{taskList.order=='name asc' ? 'name desc' : 'name asc'}" /> </s:link> </f:facet> <!-- <div onclick="event.cancelBubble = true;" class="popup" id="#{task.id}" style="z-index:1000">--> <rich:toolTip followMouse="true" direction="top-right" delay="500" mode="client"> <table> <tr> <td style="white-space:nowrap">#{messages['task.code']}:</td> <td style="white-space:nowrap">#{task.code}</td> </tr> <tr> <td style="white-space:nowrap">#{messages['task.type']}:</td> <td style="white-space:nowrap">#{task.wrappedType}</td> </tr> <tr> <td style="white-space:nowrap">#{messages['task.spendHour']}:</td> <td style="white-space:nowrap">#{task.spendHour}</td> </tr> <tr> <td style="white-space:nowrap">#{messages['task.createDate']}:</td> <td style="white-space:nowrap"> <h:outputText value="#{task.createDate}"> <s:convertDateTime type="both" dateStyle="long" pattern="yyyy-MM-dd"/> </h:outputText> </td> </tr> <tr> <td style="white-space:nowrap">#{messages['task.description']}:</td> <td style="white-space:nowrap"> <h:outputText escape="false" value="#{task.wrappedDescription}"/> </td> </tr> <tr> <td colspan="2" align="left"> <rich:separator height="1" style="padding:10px 0" /> </td> </tr> <tr> <td style="white-space:nowrap">#{messages['task.belongProject']}:</td> <td style="white-space:nowrap">#{task.project.name}</td> </tr> <tr> <td style="white-space:nowrap">#{messages['project.creator']}:</td> <td style="white-space:nowrap"> <h:outputText value="#{task.project.userByCreator.name}"/> </td> </tr> <tr> <td style="white-space:nowrap">#{messages['project.principal']}:</td> <td style="white-space:nowrap"> <h:outputText value="#{task.project.userByPrincipal.name}"/> </td> </tr> </table> </rich:toolTip> <s:link view="/TaskEdit.xhtml" value="#{task.name}" id="task"> <f:param name="taskId" value="#{task.id}" /> <f:param name="projectId" value="#{task.project.id}" /> <f:param name="proId" value="#{task.project.id}" /> <f:param name="parentId" value="#{task.parentId}" /> <f:param name="tskId" value="#{task.parentId}" /> <f:param name="tType" value="#{task.leafFlag}" /> </s:link> <h:outputText value="#{messages['notLeaf']}" rendered="#{task.leafFlag == 1}"/> </h:column> <h:column> <f:facet name="header"> <s:link styleClass="columnHeader" value="#{messages['task.principal']} #{taskList.order=='principal asc' ? messages.down : ( taskList.order=='principal desc' ? messages.up : '' )}"> <f:param name="order" value="#{taskList.order=='principal asc' ? 'principal desc' : 'principal asc'}" /> </s:link> </f:facet> #{task.userByPrincipal.name} </h:column> <h:column> <f:facet name="header"> <s:link styleClass="columnHeader" value="#{messages['task.creator']} #{taskList.order=='creator asc' ? messages.down : ( taskList.order=='creator desc' ? messages.up : '' )}"> <f:param name="order" value="#{taskList.order=='creator asc' ? 'creator desc' : 'creator asc'}" /> </s:link> </f:facet> #{task.userByCreator.name} </h:column> <h:column> <f:facet name="header"> <s:link styleClass="columnHeader" value="#{messages['task.beginDate']} #{taskList.order=='beginDate asc' ? messages.down : ( taskList.order=='beginDate desc' ? messages.up : '' )}"> <f:param name="order" value="#{taskList.order=='beginDate asc' ? 'beginDate desc' : 'beginDate asc'}" /> </s:link> </f:facet> <h:outputText value="#{task.beginDate}"> <s:convertDateTime type="both" dateStyle="long" pattern="yyyy-MM-dd" /> </h:outputText> </h:column> <h:column> <f:facet name="header"> <s:link styleClass="columnHeader" value="#{messages['task.endDate']} #{taskList.order=='endDate asc' ? messages.down : ( taskList.order=='endDate desc' ? messages.up : '' )}"> <f:param name="order" value="#{taskList.order=='endDate asc' ? 'endDate desc' : 'endDate asc'}" /> </s:link> </f:facet> <h:outputText value="#{task.endDate}"> <s:convertDateTime type="both" dateStyle="long" pattern="yyyy-MM-dd" /> </h:outputText> </h:column> <h:column> <f:facet name="header"> <s:link styleClass="columnHeader" value="#{messages['task.state']} #{taskList.order=='state asc' ? messages.down : ( taskList.order=='state desc' ? messages.up : '' )}"> <f:param name="order" value="#{taskList.order=='state asc' ? 'state desc' : 'state asc'}" /> </s:link> </f:facet> #{task.wrappedState} </h:column> <h:column> <f:facet name="header">#{messages['label.header.operation']}</f:facet> <div onclick="event.cancelBubble = true;" class="popup" id="#{task.id}#{task.code}" style="z-index:1000"> <table> <tr> <td colspan="2" align="right"><a onclick="hideCurrentPopup();return false;"><img src="img/close.png"/></a></td> </tr> <tr> <td colspan="2" style="white-space:nowrap">[#{task.name}]</td> </tr> <tr> <td colspan="2" style="white-space:nowrap">#{messages['task.operation.selectOperation']}</td> </tr> <tr> <td style="white-space:nowrap"> <!-- create subproject --> <s:link view="/TaskEdit.xhtml" value="#{messages['right']}#{messages['task.operation.createSubproject']}" rendered="#{authenticator.user.id == task.userByPrincipal.id and task.leafFlag == 1 and task.state == 0}"> <f:param name="proId" value="#{task.project.id}"/> <f:param name="tskId" value="#{task.id}"/> <f:param name="taskId" /> <f:param name="tType" value="1" /> <s:conversationPropagation propagation="begin" /> </s:link> </td> <td style="white-space:nowrap"> <!-- create task --> <s:link view="/TaskEdit.xhtml" value="#{messages['right']}#{messages['task.operation.createTask']}" rendered="#{authenticator.user.id == task.userByPrincipal.id and task.leafFlag == 1 and task.state == 0}"> <f:param name="proId" value="#{task.project.id}"/> <f:param name="tskId" value="#{task.id}"/> <f:param name="taskId" /> <f:param name="tType" value="0" /> <s:conversationPropagation propagation="begin" /> </s:link> </td> </tr> </table> </div> <s:link onmouseover="showPopup('#{task.id}#{task.code}', event, 'left');" value="#{messages['button.create']}#{messages['haveChildren']}" rendered="#{authenticator.user.id == task.userByPrincipal.id and task.leafFlag == 1 and task.state == 0}"> <f:param name="taskId" value="#{task.id}" /> </s:link> <span> </span> <div onclick="event.cancelBubble = true;" class="popup" id="#{task.code}#{task.id}" style="z-index:1000"> <table> <tr> <td colspan="2" align="right"><a onclick="hideCurrentPopup();return false;"><img src="img/close.png"/></a></td> </tr> <tr> <td colspan="2" style="white-space:nowrap">[#{task.name}]</td> </tr> <tr> <td colspan="2" style="white-space:nowrap"> <h:outputText value="#{messages['task.warning.content']}" escape="false"/> </td> </tr> <tr> <td> <!-- close the task --> <s:link view="/TaskList.xhtml" value="#{messages['right']}#{messages['task.close']}" action="#{taskHome.update}" id="closetask" rendered="#{authenticator.user.id == task.userByCreator.id and task.state == 0}"> <f:param name="id" value="#{task.id}" /> <f:param name="tState" value="1"/> </s:link> </td> <td> <!-- cancel the task --> <s:link view="/TaskList.xhtml" action="#{taskHome.update}" value="#{messages['right']}#{messages['task.cancel']}" id="canceltask" rendered="#{authenticator.user.id == task.userByCreator.id and task.state == 0}"> <f:param name="id" value="#{task.id}" /> <f:param name="tState" value="2"/> </s:link> </td> </tr> </table> </div> <s:link onmouseover="showPopup('#{task.code}#{task.id}', event, 'left');" value="#{messages['task.changeStateOperation']}#{messages['haveChildren']}" rendered="#{authenticator.user.id == task.userByCreator.id and task.state == 0}"> </s:link> <span> </span> <s:link view="/TaskDelayEdit.xhtml" value="#{messages['task.operation.delay']}" rendered="#{authenticator.user.id == task.userByPrincipal.id and task.project.type == 1 and task.state != 1 and task.state != 2}"> <f:param name="taskId" value="#{task.id}" /> <f:param name="tId" value="#{task.id}" /> <f:param name="taskDelayId"/> <f:param name="order" value="createDate desc"/> <f:param name="tType" value="#{task.leafFlag}"/> <s:conversationPropagation propagation="begin"/> </s:link> </h:column> </rich:dataTable> </div> </rich:panel> </a:outputPanel> </h:panelGrid> </rich:panel> </h:form> </ui:define> </ui:composition>