Snapshot Available

[vaduganathan]

For Client 1, I am getting the following entries in the log. The item that I am subscribing is MW#1#1#1:

16-Dec-10 17:13:38,218 |TRACE|LightstreamerLogger.preprocessor |SERVER POOLED THREAD 1 |No frequency prefilter for item MW#1#1#1
16-Dec-10 17:13:38,218 |TRACE|LightstreamerLogger.preprocessor |SERVER POOLED THREAD 1 |Snapshot buffer size for DISTINCT item MW#1#1#1 set to 0
16-Dec-10 17:13:38,218 |TRACE|LightstreamerLogger.subscriptions|SERVER POOLED THREAD 1 |Subscribing item MW#1#1#1 on BrowserToLSToTWS.DEFAULT
16-Dec-10 17:13:38,218 |DEBUG|LightstreamerLogger.subscriptions|SERVER POOLED THREAD 1 |Manager: com.lightstreamer.c.fb@bc5596

For Client 2, I am getting like this:
16-Dec-10 17:14:54,328 |TRACE|LightstreamerLogger.preprocessor |SNAPSHOT POOLED THREAD 1 |Sending DISTINCT snapshot to session Sc1cd7da17bb316adT1451625 for item MW#1#1#1: Snapshot end signal for item MW#1#1#1 on BrowserToLSToTWS.DEFAULT

The code that I have written:

Client Side:

$wnd.pushtable_messages = new $wnd.NonVisualTable(jsonEntries.split(" "), new Array("instancesAndSecurities"), "DISTINCT");
$wnd.pushtable_messages.setSnapshotRequired(true);

Server Side:
1. In Meta data data Adapter

public boolean isSnapshotAvailable(String itemName)
			throws SubscriptionException {
		return true;
	}

public int getDistinctSnapshotLength(String item)
	{
		return 1;
	}

itemEventListener.smartUpdate(itemHandle, data, false);

3. In Adapter.XML:
<param name="distinct_snapshot_length">1</param>

Can you please let me know what I have done wrong?

Note:

1. I also tried $wnd.pushtable_messages.setSnapshotRequired(1); This is also not working.
2. For Data Adapter I have implemented:

public class InstancesAndSecuritiesDataAdapter implements SmartDataProvider 
{
}

3. For Meta Data Adapter I have implemented:

public class ActiveTraderMetaData extends LiteralBasedProvider 
{
}