[jbosstools-issues] [JBoss JIRA] Closed: (JBIDE-3956) Factory Method ... with a void return type must have an associated @Out/Databinder

Factory Method ... with a void return type must have an associated @Out/Databinder ---------------------------------------------------------------------------------- Key: JBIDE-3956 URL: https://jira.jboss.org/jira/browse/JBIDE-3956 Project: Tools (JBoss Tools) Issue Type: Bug Components: Seam Affects Versions: 3.1.0 Environment: Eclipse v3.4.2 using JBoss Tools 3.1.0.Alpha1-N200903051849-H12, Seam Tools for Eclipse 3.0.0.GA-N200903051241-H11, JBoss 4.2.3.GA, Seam 2.1.1.GA, JDK 1.5.0_09, Windows XP Media Center Edition Version 2002 Service Pack 2, HP Pavilion m7680n, Intel Core 2 Duo E6700 CPU, 2.00 GB of RAM. Reporter: Jeremy Goodell Google searching for the string in the Summary field results in only one set of matches. The matches all refer to JBIDE-1955, which is a case closed in March, 2008. It looked as if the problem was showing up in the Seam booking example. I DO NOT have the problem with the booking example, however I am having it on one of my session Beans (CouponCampaignListAction) but not on another (CouponListAction) both of which are included below. I am quite new to Seam, EJB3, JPA, and Hibernate, so please forgive me if this is a non-issue. I spent about 7 hours trying to understand this issue today before submitting this report. I was able to get rid of the error by making the factory method return a List instead of a void. But I don't understand why this would work in one class and not another. I thought the list would be outjected automatically. The fact that there was a previous bug report on the same issue made me think it might be a real problem. Thanks for any help. CouponCampaignListAction.java (has the error): package org.domain.rcms.session; import static org.jboss.seam.ScopeType.SESSION; import java.io.Serializable; import java.util.List; import javax.ejb.Remove; import javax.ejb.Stateless; import javax.persistence.EntityManager; import javax.persistence.PersistenceContext; import org.domain.rcms.entity.CouponCampaign; import org.domain.rcms.interfaces.CouponCampaignList; import org.jboss.seam.annotations.Destroy; import org.jboss.seam.annotations.Factory; import org.jboss.seam.annotations.Name; import org.jboss.seam.annotations.Logger; import org.jboss.seam.log.Log; import org.jboss.seam.annotations.Scope; import org.jboss.seam.annotations.datamodel.DataModel; import org.jboss.seam.annotations.datamodel.DataModelSelection; import org.jboss.seam.annotations.security.Restrict; @SuppressWarnings("serial") @Stateless @Scope(SESSION) @Name("CouponCampaignList") @Restrict("#{identity.loggedIn}") public class CouponCampaignListAction implements CouponCampaignList, Serializable { @Logger private Log log; @PersistenceContext private EntityManager em; @SuppressWarnings("unused") @DataModel private List<CouponCampaign> campaigns; @DataModelSelection private CouponCampaign currentCampaign; @SuppressWarnings("unchecked") @Factory public void getCouponCampaigns() { log.info("Getting coupon campaigns."); campaigns = em.createQuery("select c from CouponCampaign c where order by c.createData" ) .getResultList(); } public CouponCampaign getCouponCampaign() { return currentCampaign; } @Remove @Destroy public void destroy() { } } The error is on the getCouponCampaigns method and there is no suggestion in Eclipse for how to fix it. I have a quite similar session bean in the same package which builds just fine: CouponListAction.java (does not have the error): package org.domain.rcms.session; import static org.jboss.seam.ScopeType.SESSION; import java.io.Serializable; import java.util.List; import javax.ejb.Remove; import javax.ejb.Stateless; import javax.persistence.EntityManager; import javax.persistence.PersistenceContext; import org.domain.rcms.entity.Coupon; import org.domain.rcms.entity.CouponCampaign; import org.domain.rcms.interfaces.CouponList; import org.jboss.seam.annotations.Destroy; import org.jboss.seam.annotations.Factory; import org.jboss.seam.annotations.In; import org.jboss.seam.annotations.Name; import org.jboss.seam.annotations.Logger; import org.jboss.seam.log.Log; import org.jboss.seam.annotations.Scope; import org.jboss.seam.annotations.datamodel.DataModel; import org.jboss.seam.annotations.datamodel.DataModelSelection; import org.jboss.seam.annotations.security.Restrict; @SuppressWarnings("serial") @Stateless @Scope(SESSION) @Name("CouponList") @Restrict("#{identity.loggedIn}") public class CouponListAction implements CouponList, Serializable { @Logger private Log log; @PersistenceContext private EntityManager em; @SuppressWarnings("unused") @DataModel private List<Coupon> coupons; @DataModelSelection private Coupon currentCoupon; @In private CouponCampaign currentCampaign; @SuppressWarnings("unchecked") @Factory public void getCoupons() { log.info("Getting coupon campaigns."); coupons = em.createQuery("select c from Coupon c where :currentCampaign is null or c.campaign.id = :currentCampaignId order by c.createData") .setParameter("currentCampaign", currentCampaign) .setParameter("currentCampaignId", currentCampaign.getId()) .getResultList(); } public Coupon getCoupon() { return currentCoupon; } @Remove @Destroy public void destroy() { } }