In the following table, the description provides the SQL data type. If you are writing your script in Java or .NET, use the appropriate corresponding data type. See SQL-Java data types and SQL-.NET data types.

In SQL scripts, you can specify event parameters by name or with a question mark. Using question marks has been deprecated and it is recommended that you use named parameters. You cannot mix names and question marks within a script. If you use question marks, the parameters must be in the order shown below and are optional only if no subsequent parameters are specified (for example, you must use parameter 1 if you are going to use parameter 2). If you use named parameters, you can specify any subset of the parameters in any order.

None.

The MobiLink server executes this event as the first step in the processing of downloaded information. Download information is processed in a single transaction. The execution of this event is the first action in this transaction.

• Script parameters
• Script additions and deletions
• end_download connection event
• Remote IDs and MobiLink user names in scripts
• Last download times in scripts

The following example calls ml_add_connection_script to assign the event to a stored procedure called SetDownloadParameters.

CALL ml_add_connection_script (
   'Lab',
   'begin_download',
   'CALL SetDownloadParameters( {ml s.last_table_download}, {ml s.username} )' )

The following call to a MobiLink system procedure registers a Java method called beginDownloadConnection as the script for the begin_download connection event when synchronizing the script version ver1.

CALL ml_add_java_connection_script(
   'example_ver',
   'begin_download',
   'ExamplePackage.ExampleClass.beginDownloadConnection' )

The following is the sample Java method beginDownloadConnection. It calls a Java method (prepDeleteTables) that prepares the delete tables using a JDBC connection that was set earlier.

public void beginDownloadConnection(
  Timestamp ts, 
  String user )
  throws java.sql.SQLException {  
  prepDeleteTables ( _syncConn, ts, user );
  }

The following call to a MobiLink system procedure registers a .NET method called BeginDownload as the script for the begin_download connection event when synchronizing the script version ver1.

CALL ml_add_dnet_connection_script(
  'ver1',
  'begin_download',
  'TestScripts.Test.BeginDownload'
)

The following is the sample .NET method BeginDownload. It calls a .NET method (prepDeleteTables) that prepares the delete tables using a database connection that was set earlier.

public void BeginDownload(
  DateTime timestamp,
  string user ) {  
  prepDeleteTables ( _syncConn, ts, user );
  }