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POJBoss Seam: In ScopeType.PAGE I get: java.lang.IllegalStateException: No conversation context active
 

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  1. POJBoss Seam: In ScopeType.PAGE I get: java.lang.IllegalStateException: No conversation context active
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    <p>I have a page-scoped component, which has an instance variable List with data, which I display in a datatable. This datatable has pagination, sorting and filtering.</p> <p>The first time gate into the page, I get this appended in my URL: <strong>?conversationId=97</strong>. The page works correctly, and when I change datatable pages no now component is created.</p> <p>After a minute or two, and at seamingly random time, I get an exception saying that there is no context. I have not used @Create in my code or my navigation files.</p> <p>So, I have two questions:</p> <ul> <li>Why do I get this suffix in my URL? Why did a conversation start?</li> <li>Why the exception? The component is scoped to PAGE. If I received an exception, it should not be related to a conversation. Right? Or is the conversation the exception is referring a temporary conversation?</li> </ul> <p>Cheers!</p> <p><strong>UPDATE I:</strong></p> <p>The project is an Ear.</p> <p>This is the page:</p> <pre><code>&lt;!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt; &lt;html xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://java.sun.com/jsf/facelets" xmlns:h="http://java.sun.com/jsf/html" xmlns:f="http://java.sun.com/jsf/core" xmlns:a4j="http://richfaces.org/a4j" xmlns:rich="http://richfaces.org/rich"&gt; &lt;body&gt; &lt;ui:composition template="/WEB-INF/facelets/templates/template.xhtml"&gt; &lt;ui:define name="content"&gt; &lt;!-- This method returns focus on the filter --&gt; &lt;script type="text/javascript"&gt; function submitByEnter(event){ if (event.keyCode == 13) { if (event.preventDefault) { // Firefox event.preventDefault(); } else { // IE event.returnValue = false; } document.getElementById("refreshButton").click(); } } &lt;/script&gt; &lt;h:form prependId="false"&gt; &lt;h:commandButton action="Back" value="Back to home page" /&gt; &lt;br /&gt; &lt;p&gt;&lt;h:outputText value="Applicants and Products (experimentation page)" class="page_title" /&gt;&lt;/p&gt; &lt;h:commandButton action="#{applicantProductListBean.showCreateApplicant}" value="Create Applicant" id="createApplicantButton"&gt; &lt;/h:commandButton&gt; &lt;a4j:commandButton value="Refresh" id="refreshButton" action="#{applicantProductListBean.refreshData}" image="/images/icons/refresh48x48.gif" reRender="compositeTable, compositeScroller"&gt; &lt;!-- &lt;f:setPropertyActionListener--&gt; &lt;!-- target="# {pageScrollerBean.applicantProductListPage}" value="1" /&gt;--&gt; &lt;/a4j:commandButton&gt; &lt;rich:toolTip for="createApplicantButton" value="Create Applicant" /&gt; &lt;rich:dataTable styleClass="composite2DataTable" id="compositeTable" rows="1" columnClasses="col" value="#{applicantProductListBean.dataModel}" var="pageAppList"&gt; &lt;f:facet name="header"&gt; &lt;rich:columnGroup&gt; &lt;rich:column colspan="3"&gt; &lt;h:outputText styleClass="headerText" value="Applicants" /&gt; &lt;/rich:column&gt; &lt;rich:column colspan="3"&gt; &lt;h:outputText styleClass="headerText" value="Products" /&gt; &lt;/rich:column&gt; &lt;rich:column breakBefore="true"&gt; &lt;h:outputText styleClass="headerText" value="Applicant Name" /&gt; &lt;a4j:commandButton id="sortingApplicantNameButton" action="#{applicantProductListBean.toggleSorting('applicantName')}" image="/images/icons/sorting/#{sortingFilteringBean.applicantProductListSorting.sortingValues['applicantName']}.gif" reRender="sortingApplicantNameButton, sortingApplicantEmailButton, compositeTable, compositeScroller"&gt; &lt;!-- &lt;f:setPropertyActionListener--&gt; &lt;!-- target="#{pageScrollerBean.applicantProductListPage}" value="1" /&gt;--&gt; &lt;/a4j:commandButton&gt; &lt;br /&gt; &lt;h:inputText value="#{sortingFilteringBean.applicantProductListFiltering.filteringValues['applicantName']}" id="applicantNameFilterValue" onkeypress="return submitByEnter(event)"&gt; &lt;/h:inputText&gt; &lt;/rich:column&gt; &lt;rich:column&gt; &lt;h:outputText styleClass="headerText" value="Applicant Email" /&gt; &lt;a4j:commandButton id="sortingApplicantEmailButton" action="#{applicantProductListBean.toggleSorting('applicantEmail')}" image="/images/icons/sorting/#{sortingFilteringBean.applicantProductListSorting.sortingValues['applicantEmail']}.gif" reRender="sortingApplicantNameButton, sortingApplicantEmailButton, compositeTable, compositeScroller"&gt; &lt;!-- &lt;f:setPropertyActionListener--&gt; &lt;!-- target="#{pageScrollerBean.applicantProductListPage}" value="1" /&gt;--&gt; &lt;/a4j:commandButton&gt; &lt;br /&gt; &lt;h:inputText value="#{sortingFilteringBean.applicantProductListFiltering.filteringValues['applicantEmail']}" id="applicantEmailFilterValue" onkeypress="return submitByEnter(event)"&gt; &lt;/h:inputText&gt; &lt;/rich:column&gt; &lt;rich:column&gt; &lt;h:outputText styleClass="headerText" value="Applicant Actions" /&gt; &lt;/rich:column&gt; &lt;rich:column&gt; &lt;h:outputText styleClass="headerText" value="Product Name" /&gt; &lt;a4j:commandButton id="sortingProductNameButton" action="#{applicantProductListBean.toggleSorting('productName')}" immediate="true" image="/images/icons/sorting/#{sortingFilteringBean.applicantProductListSorting.sortingValues['productName']}.gif" reRender="sortingProductNameButton, compositeTable, compositeScroller"&gt; &lt;/a4j:commandButton&gt; &lt;br /&gt; &lt;h:inputText value="#{sortingFilteringBean.applicantProductListFiltering.filteringValues['productName']}" id="productNameFilterValue" onkeypress="return submitByEnter(event)"&gt; &lt;/h:inputText&gt; &lt;/rich:column&gt; &lt;rich:column&gt; &lt;h:outputText styleClass="headerText" value="Product Email" /&gt; &lt;br /&gt; &lt;h:inputText value="#{sortingFilteringBean.applicantProductListFiltering.filteringValues['productEmail']}" id="productEmailFilterValue" onkeypress="return submitByEnter(event)"&gt; &lt;/h:inputText&gt; &lt;/rich:column&gt; &lt;rich:column&gt; &lt;h:outputText styleClass="headerText" value="Product Actions" /&gt; &lt;/rich:column&gt; &lt;/rich:columnGroup&gt; &lt;/f:facet&gt; &lt;rich:subTable rowClasses="odd_applicant_row, even_applicant_row" value="#{pageAppList}" var="app"&gt; &lt;rich:column styleClass=" internal_cell composite2TextContainingColumn" valign="top"&gt; &lt;h:outputText value="#{app.name}" /&gt; &lt;/rich:column&gt; &lt;rich:column styleClass="internal_cell composite2TextContainingColumn" valign="top"&gt; &lt;h:outputText value="#{app.receiptEmail}" /&gt; &lt;/rich:column&gt; &lt;rich:column valign="top" styleClass="buttonsColumn"&gt; &lt;h:commandButton action="#{applicantProductListBean.showUpdateApplicant(app)}" image="/images/icons/edit.jpg"&gt; &lt;/h:commandButton&gt; &lt;!-- &lt;rich:toolTip for="editApplicantButton" value="Edit Applicant" /&gt;--&gt; &lt;h:commandButton action="#{applicantProductListBean.showDeleteApplicant(app)}" image="/images/icons/delete.png"&gt; &lt;/h:commandButton&gt; &lt;!-- &lt;rich:toolTip for="deleteApplicantButton" value="Delete Applicant" /&gt;--&gt; &lt;/rich:column&gt; &lt;rich:column colspan="3"&gt; &lt;table class="productsTableTable"&gt; &lt;tbody&gt; &lt;tr&gt; &lt;td class="createProductButtonTableCell"&gt;&lt;h:commandButton action="#{applicantProductListBean.showCreateProduct(app)}" value="Create Product"&gt; &lt;/h:commandButton&gt; &lt;!-- &lt;rich:toolTip for="createProductButton" value="Create Product" /&gt;--&gt; &lt;/td&gt; &lt;/tr&gt; &lt;tr&gt; &lt;td&gt;&lt;rich:dataTable value="#{app.products}" var="prod" rowClasses="odd_product_row, even_product_row"&gt; &lt;rich:column styleClass="internal_cell composite2TextContainingColumn"&gt; &lt;h:outputText value="#{prod.inventedName}" /&gt; &lt;/rich:column&gt; &lt;rich:column styleClass="internal_cell composite2TextContainingColumn"&gt; &lt;h:outputText value="#{prod.receiptEmail}" /&gt; &lt;/rich:column&gt; &lt;rich:column styleClass="buttonsColumn"&gt; &lt;h:commandButton action="#{applicantProductListBean.showUpdateProduct(prod)}" image="/images/icons/edit.jpg"&gt; &lt;/h:commandButton&gt; &lt;!-- &lt;rich:toolTip for="editProductButton" value="Edit Product" /&gt;--&gt; &lt;h:commandButton action="#{applicantProductListBean.showDeleteProduct(prod)}" image="/images/icons/delete.png"&gt; &lt;f:setPropertyActionListener target="#{productBean.product}" value="#{prod}" /&gt; &lt;/h:commandButton&gt; &lt;!-- &lt;rich:toolTip for="deleteProductButton" value="Delete Product" /&gt;--&gt; &lt;/rich:column&gt; &lt;/rich:dataTable&gt;&lt;/td&gt; &lt;/tr&gt; &lt;/tbody&gt; &lt;/table&gt; &lt;/rich:column&gt; &lt;/rich:subTable&gt; &lt;f:facet name="footer"&gt; &lt;h:panelGrid columns="1" styleClass="applicantProductListFooter"&gt; &lt;h:outputText value="#{msgs.no_results}" rendered="#{(empty applicantProductListBean.dataModel) || (applicantProductListBean.dataModel.rowCount==0)}"/&gt; &lt;rich:datascroller align="center" for="compositeTable" page="#{pageScrollerBean.applicantProductListPage}" id="compositeScroller" reRender="compositeTable" renderIfSinglePage="false" fastControls="hide"&gt; &lt;f:facet name="first"&gt; &lt;h:outputText value="#{msgs.first}" styleClass="scrollerCell" /&gt; &lt;/f:facet&gt; &lt;f:facet name="first_disabled"&gt; &lt;h:outputText value="#{msgs.first}" styleClass="scrollerCell" /&gt; &lt;/f:facet&gt; &lt;f:facet name="last"&gt; &lt;h:outputText value="#{msgs.last}" styleClass="scrollerCell" /&gt; &lt;/f:facet&gt; &lt;f:facet name="last_disabled"&gt; &lt;h:outputText value="#{msgs.last}" styleClass="scrollerCell" /&gt; &lt;/f:facet&gt; &lt;f:facet name="next"&gt; &lt;h:outputText value="#{msgs.next}" styleClass="scrollerCell" /&gt; &lt;/f:facet&gt; &lt;f:facet name="next_disabled"&gt; &lt;h:outputText value="#{msgs.next}" styleClass="scrollerCell" /&gt; &lt;/f:facet&gt; &lt;f:facet name="previous"&gt; &lt;h:outputText value="#{msgs.previous}" styleClass="scrollerCell" /&gt; &lt;/f:facet&gt; &lt;f:facet name="previous_disabled"&gt; &lt;h:outputText value="#{msgs.previous}" styleClass="scrollerCell" /&gt; &lt;/f:facet&gt; &lt;/rich:datascroller&gt; &lt;/h:panelGrid&gt; &lt;/f:facet&gt; &lt;/rich:dataTable&gt; &lt;/h:form&gt; &lt;/ui:define&gt; </code></pre> <p></p> <p> </p> <p>This is the backing bean:</p> <pre><code>@Name("applicantProductListBean") @Scope(ScopeType.PAGE) public class ApplicantProductListBean extends BasePagedSortableFilterableListBean { /** * Public field for ad-hoc injection to work. */ @EJB(name = "FacadeService") public ApplicantFacadeService applicantFacadeService; @Logger private static Log logger; private final int pageSize = 10; @Out(scope = ScopeType.CONVERSATION, required = false) Applicant currentApplicant; @Out(scope = ScopeType.CONVERSATION, required = false) Product product; @Create public void onCreate() { System.out.println("Create"); } @Override protected DataModel initDataModel(int pageSize) { // get filtering and sorting from session sorting = getSorting(); filtering = getFiltering(); // System.out.println("Initializing a Composite3DataModel"); // System.out.println("Pagesize: " + pageSize); // System.out.println("Filtering: " + filtering.getFilteringValues()); // System.out.println("Sorting: " + sorting.getSortingValues()); return new Composite3DataModel(1, sorting, filtering); } // Navigation methods /** * Navigation-returning method, returns the action to follow after pressing * the "Create Applicant" button * * @return the action to be taken */ public Navigation.ApplicantProductList showCreateApplicant() { return Navigation.ApplicantProductList.SHOW_CREATE_APPLICANT; } /** * Navigation-returning method, returns the action to follow after pressing * the "Edit Applicant" button * * @return the action to be taken */ public Navigation.ApplicantProductList showUpdateApplicant( Applicant applicant) { this.currentApplicant = applicant; return Navigation.ApplicantProductList.SHOW_UPDATE_APPLICANT; } /** * Navigation-returning method, returns the action to follow after pressing * the "Delete Applicant" button * * @return the action to be taken */ public Navigation.ApplicantProductList showDeleteApplicant( Applicant applicant) { this.currentApplicant = applicant; return Navigation.ApplicantProductList.SHOW_DELETE_APPLICANT; } /** * Navigation-returning method, returns the action to follow after pressing * the "Create Product" button * * @return the action to be taken */ public Navigation.ApplicantProductList showCreateProduct(Applicant app) { this.product = new Product(); this.product.setApplicant(app); return Navigation.ApplicantProductList.SHOW_CREATE_PRODUCT; } /** * Navigation-returning method, returns the action to follow after pressing * the "Edit Product" button * * @return the action to be taken */ public Navigation.ApplicantProductList showUpdateProduct(Product prod) { this.product = prod; return Navigation.ApplicantProductList.SHOW_UPDATE_PRODUCT; } /** * Navigation-returning method, returns the action to follow after pressing * the "Delete Product" button * * @return the action to be taken */ public Navigation.ApplicantProductList showDeleteProduct(Product prod) { this.product = prod; return Navigation.ApplicantProductList.SHOW_DELETE_PRODUCT; } /** * */ @Override public Sorting getSorting() { if (sorting == null) { return (getSortingFilteringBeanFromSession() .getApplicantProductListSorting()); } return sorting; } /** * */ @Override public void setSorting(Sorting sorting) { getSortingFilteringBeanFromSession().setApplicantProductListSorting( sorting); } /** * */ @Override public Filtering getFiltering() { if (filtering == null) { return (getSortingFilteringBeanFromSession() .getApplicantProductListFiltering()); } return filtering; } /** * */ @Override public void setFiltering(Filtering filtering) { getSortingFilteringBeanFromSession().setApplicantProductListFiltering( filtering); } /** * @return the currentApplicant */ public Applicant getCurrentApplicant() { return currentApplicant; } /** * @param currentApplicant * the currentApplicant to set */ public void setCurrentApplicant(Applicant applicant) { this.currentApplicant = applicant; } /** * The model for this page * */ private class Composite3DataModel extends PagedSortableFilterableDataModel&lt;List&lt;Applicant&gt;&gt; { public Composite3DataModel(int pageSize, Sorting sorting, Filtering filtering) { super(pageSize, sorting, filtering); } @Override protected DataPage&lt;List&lt;Applicant&gt;&gt; fetchPage(int fakeStartRow, int fakePageSize) { // if (logger.isTraceEnabled()) { System.out.println("Getting page with fakeStartRow: " + fakeStartRow + " and fakePageSize " + fakePageSize); // } // to find the page size multiply the startRow and the fakePageSize // (which is 1) to the actual page size int startRow = fakeStartRow * ApplicantProductListBean.this.pageSize; int pageSize = fakePageSize * ApplicantProductListBean.this.pageSize; // if (logger.isTraceEnabled()) { System.out.println("Getting page with startRow: " + startRow + " and pageSize " + pageSize); // } List&lt;Applicant&gt; pageApplicants = applicantFacadeService .findPagedWithCriteria(startRow, pageSize, filtering, sorting); // List&lt;Applicant&gt; pageApplicants = applicantFacadeService // .findPagedWithDynamicQuery(startRow, pageSize, filtering, // sorting, true); // if (logger.isTraceEnabled()) { System.out.println("Set of applicants: " + pageApplicants.size()); // } List&lt;List&lt;Applicant&gt;&gt; pageApplicantsListContainer = new ArrayList&lt;List&lt;Applicant&gt;&gt;(); pageApplicantsListContainer.add(pageApplicants); DataPage&lt;List&lt;Applicant&gt;&gt; dataPage = new DataPage&lt;List&lt;Applicant&gt;&gt;( this.getRowCount(), fakeStartRow, pageApplicantsListContainer); return dataPage; } @Override protected int getDatasetSize() { // int size = getServiceFacade().countWithCriteria(filtering, // sorting); // int size = // applicantFacadeService.countWithDynamicQuery(filtering, sorting, // false); int size = (int) Math.ceil((double) applicantFacadeService .countWithCriteria(filtering, sorting, false) / pageSize); if (logger.isTraceEnabled()) { logger.trace("Got Dataset Size: " + size); } return size; } } /** * @return the product */ public Product getProduct() { return product; } /** * @param product * the product to set */ public void setProduct(Product product) { this.product = product; } } </code></pre> <p>And this is the page file (Notice that as long as I don't leave the page no conversation is created):</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;page&gt; &lt;navigation&gt; &lt;rule if-outcome="Back"&gt; &lt;redirect view-id="/index.xhtml" /&gt; &lt;/rule&gt; &lt;rule if-outcome="SHOW_CREATE_PRODUCT"&gt; &lt;begin-conversation join="true" /&gt; &lt;redirect view-id="/pages/product/createProduct.xhtml" /&gt; &lt;/rule&gt; &lt;rule if-outcome="SHOW_UPDATE_PRODUCT"&gt; &lt;begin-conversation join="true" /&gt; &lt;redirect view-id="/pages/product/editProduct.xhtml" /&gt; &lt;/rule&gt; &lt;rule if-outcome="SHOW_DELETE_PRODUCT"&gt; &lt;begin-conversation join="true" /&gt; &lt;redirect view-id="/pages/product/deleteProduct.xhtml" /&gt; &lt;/rule&gt; &lt;rule if-outcome="SHOW_CREATE_APPLICANT"&gt; &lt;begin-conversation join="true" /&gt; &lt;redirect view-id="/pages/applicant/createApplicant.xhtml" /&gt; &lt;/rule&gt; &lt;rule if-outcome="SHOW_UPDATE_APPLICANT"&gt; &lt;begin-conversation join="true" /&gt; &lt;redirect view-id="/pages/applicant/editApplicant.xhtml" /&gt; &lt;/rule&gt; &lt;rule if-outcome="SHOW_DELETE_APPLICANT"&gt; &lt;begin-conversation join="true" /&gt; &lt;redirect view-id="/pages/applicant/deleteApplicant.xhtml" /&gt; &lt;/rule&gt; &lt;/navigation&gt; &lt;/page&gt; </code></pre> <p><strong>UPDATE II:</strong></p> <p>the stacktrace is <a href="http://pastebin.com/9egKQV1C" rel="nofollow noreferrer">here</a></p>
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    1. USMarkos Fragkakis
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      1. POJBoss Seam: In ScopeType.PAGE I get: java.lang.IllegalStateException: No conversation context active
      1. This table or related slice is empty.
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      1. POJBoss Seam: In ScopeType.PAGE I get: java.lang.IllegalStateException: No conversation context active
      1. USMarkos Fragkakis
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      1. POJBoss Seam: In ScopeType.PAGE I get: java.lang.IllegalStateException: No conversation context active
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    1. CO@Markos Fragkakis Can you show your Seam component and your page ? ear or war ?
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      1. POJBoss Seam: In ScopeType.PAGE I get: java.lang.IllegalStateException: No conversation context active
      1. USArthur Ronald
    2. CO@Arthur Ronald F D Garcia I added the code. Please take another look.
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    3. COgive the whole stacktrace
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      1. USBozho
 

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