Remoting - Callback method not being called
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.
