[jboss-user] [JBoss Seam] - Remoting - Callback method not being called

[mcrandall]

I'm a newbie to the SEAM framework so please be patient with me.

I have successfully used the remoting (AJAX) feature.  However, when I have an entity bean (generated by seam gen) that has join columns, the results are returned but the callback method does not get called.  Is there something wrong with how I am handling the result set in my component?

Here is my entity bean:
@Entity
  | @Table(name = "playbackevent")
  | public class Playbackevent implements java.io.Serializable {
  | 
  | 	private String playbackEventId;
  | 	private Transaction transaction;
  | 	private Enduser enduser;
  | 	private Applicationversion applicationversion;
  | 	private Date eventTime;
  | 	private String eventType;
  | 	private String image;
  | 	private String machineId;
  | 	private String machineName;
  | 
  | 	public Playbackevent() {
  | 	}
  | 
  | 	public Playbackevent(String playbackEventId, Date eventTime, String image) {
  | 		this.playbackEventId = playbackEventId;
  | 		this.eventTime = eventTime;
  | 		this.image = image;
  | 	}
  | 
  | 	public Playbackevent(String playbackEventId, Transaction transaction,
  | 			Enduser enduser, Applicationversion applicationversion,
  | 			Date eventTime, String eventType, String image, String machineId,
  | 			String machineName) {
  | 		this.playbackEventId = playbackEventId;
  | 		this.transaction = transaction;
  | 		this.enduser = enduser;
  | 		this.applicationversion = applicationversion;
  | 		this.eventTime = eventTime;
  | 		this.eventType = eventType;
  | 		this.image = image;
  | 		this.machineId = machineId;
  | 		this.machineName = machineName;
  | 	}
  | 
  | 	@Id
  | 	@Column(name = "PlaybackEventID", unique = true, nullable = false, length = 32)
  | 	@NotNull
  | 	@Length(max = 32)
  | 	public String getPlaybackEventId() {
  | 		return this.playbackEventId;
  | 	}
  | 
  | 	public void setPlaybackEventId(String playbackEventId) {
  | 		this.playbackEventId = playbackEventId;
  | 	}
  | 
  | 	@ManyToOne(fetch = FetchType.LAZY)
  | 	@JoinColumn(name = "TransactionID")
  | 	public Transaction getTransaction() {
  | 		return this.transaction;
  | 	}
  | 
  | 	public void setTransaction(Transaction transaction) {
  | 		this.transaction = transaction;
  | 	}
  | 
  | 	@ManyToOne(fetch = FetchType.LAZY)
  | 	@JoinColumn(name = "EndUserID")
  | 	public Enduser getEnduser() {
  | 		return this.enduser;
  | 	}
  | 
  | 	public void setEnduser(Enduser enduser) {
  | 		this.enduser = enduser;
  | 	}
  | 
  | 	@ManyToOne(fetch = FetchType.LAZY)
  | 	@JoinColumn(name = "ApplicationVersionID")
  | 	public Applicationversion getApplicationversion() {
  | 		return this.applicationversion;
  | 	}
  | 
  | 	public void setApplicationversion(Applicationversion applicationversion) {
  | 		this.applicationversion = applicationversion;
  | 	}
  | 
  | 	@Temporal(TemporalType.TIMESTAMP)
  | 	@Column(name = "EventTime", nullable = false, length = 0)
  | 	@NotNull
  | 	public Date getEventTime() {
  | 		return this.eventTime;
  | 	}
  | 
  | 	public void setEventTime(Date eventTime) {
  | 		this.eventTime = eventTime;
  | 	}
  | 
  | 	@Column(name = "EventType", length = 13)
  | 	@Length(max = 13)
  | 	public String getEventType() {
  | 		return this.eventType;
  | 	}
  | 
  | 	public void setEventType(String eventType) {
  | 		this.eventType = eventType;
  | 	}
  | 
  | 	@Column(name = "Image", nullable = false, length = 1000)
  | 	@NotNull
  | 	@Length(max = 1000)
  | 	public String getImage() {
  | 		return this.image;
  | 	}
  | 
  | 	public void setImage(String image) {
  | 		this.image = image;
  | 	}
  | 
  | 	@Column(name = "MachineID", length = 32)
  | 	@Length(max = 32)
  | 	public String getMachineId() {
  | 		return this.machineId;
  | 	}
  | 
  | 	public void setMachineId(String machineId) {
  | 		this.machineId = machineId;
  | 	}
  | 
  | 	@Column(name = "MachineName", length = 500)
  | 	@Length(max = 500)
  | 	public String getMachineName() {
  | 		return this.machineName;
  | 	}
  | 
  | 	public void setMachineName(String machineName) {
  | 		this.machineName = machineName;
  | 	}
  | 
  | }
  | 

Here is my component:
	@Stateful
  | @Name("playerAction")
  | public class PlayerAction implements Player{
  | 	
  | 	@In EntityManager entityManager;
  | 	
  | 	private List<Playbackevent> events;
  | 
  | public List<Playbackevent> displayEvents() {
  | 		List playbackEvents = entityManager.createQuery(
  | 			"from Playbackevent p")	
  | 			.getResultList();
  | 		events = new ArrayList<Playbackevent>();
  | 		for (int i = 0; i < playbackEvents.size(); i++) {
  | 			Playbackevent bean = (Playbackevent) playbackEvents.get(i);
  | 			events.add(bean);
  | 		}
  | 		return events;
  | 	}
  | 
  | 	@Destroy @Remove
  | 	public void destroy() { }
  | 	
  | }
  | 

Here is the interface:
@Local
  | public interface Player {
  | 	
  | 	@WebRemote
  | 	public List<Playbackevent> displayEvents();
  | 	
  | 	public void destroy();
  | 
  | }

My XHTML page:


  | <s:remote include="playerAction"/>
  | 
  | <script type="text/javascript">
  | //<![CDATA[
  | Seam.Remoting.setDebug(true);
  | 
  | var playAction = Seam.Component.getInstance("playerAction");
  | 
  | function displayEvents() {
  | 	playAction.displayEvents(displayEventCallback);
  | }
  | 
  | 
  | function displayEventCallback (result) {
  |     if (result) {
  |     	var eTable = document.getElementById("eventTable");
  | 		for (i=0;i<result.length;i++){
  | 			var row = eTable.insertRow(0);
  | 			var cell = row.insertCell(0);
  | 	    	var eventId = result.getImage();
  | 	    	cell.innerHTML = eventId;
  |     	}
  | 	} else {
  | 		alert("No results.");
  | 	}
  | }
  | 
  | // ]]>
  | </script>
  | <table id="eventTable">
  | </table>
  | 

Any help is greatly appreciated.

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