.NET classes encapsulate synchronization logic in methods.
In this lesson, you compile a class associated with the CustDB sample database.
MobiLink database sample The CustdbScripts Assembly MobiLink server APITo execute .NET synchronization logic, the MobiLink server must have access to the classes in iAnywhere.MobiLink.Script.dll. iAnywhere.MobiLink.Script.dll contains a repository of MobiLink server API for .NET classes to use in your .NET methods.
For more information about the MobiLink server API for .NET, see MobiLink server .NET API reference (.NET 2.0).
When compiling the CustdbScripts class, you must include this assembly to make use of the API. You can compile your class using Visual Studio or at a command prompt.
In Visual Studio, create a new Class Library and enter the CustdbScripts code. Link iAnywhere.MobiLink.Script.dll, and build the assembly for your class.
Put the CustdbScripts code in a text file and save the file as CustdbScripts.cs ( or CustdbScripts.vb for Visual Basic). Using a command line compiler, reference iAnywhere.MobiLink.Script.dll and build the assembly for your class.
♦ To create the CustdbScripts assembly using Visual StudioStart a new Visual C# or Visual Basic Windows Class Library project.
Use CustdbScripts for the project Name and enter an appropriate path. This tutorial assumes the path c:\mldnet.
Ensure that the Class1.cs file is highlighted in the Solution Explorer.
Enter the CustdbScripts code.
The sample code in this tutorial illustrates a deprecated coding practice. It is recommended that you do not return SQL code when writing Java or .NET scripts. You should use make changes to the consolidated database directly from Java or .NET.
For more information, see Direct row handling.
For C#, replace the existing code with the following:
namespace MLExample {
class CustdbScripts {
public static string UploadInsert() {
return("INSERT INTO ULCustomer(cust_id,cust_name) values (?,?)");
}
public static string DownloadCursor(System.DateTime ts, string user ) {
return("SELECT cust_id, cust_name FROM ULCustomer WHERE last_modified >= '"
+ ts.ToString("yyyy-MM-dd hh:mm:ss.fff") +"'");
}
}
} |
For Visual Basic, replace the existing code with the following:
Namespace MLExample
Class CustdbScripts
Public Shared Function UploadInsert() As String
Return("INSERT INTO ULCustomer(cust_id,cust_name) values (?,?)")
End Function
Public Shared Function DownloadCursor(ByVal ts As System.DateTime, ByVal user As String) As String
Return("SELECT cust_id, cust_name FROM ULCustomer " + _
"WHERE last_modified >= '" + ts.ToString("yyyy-MM-dd hh:mm:ss.fff") +"'")
End Function
End Class
End Namespace |
Add a reference to the MobiLink server API.
From the Visual Studio Project menu, choose Add Existing Item.
Select iAnywhere.MobiLink.Script.dll in C:\Program Files\SQL Anywhere 12\Assembly\V2. Replace C:\Program Files\SQL Anywhere 12 with the directory of your SQL Anywhere installation.
From the Add dropdown, choose to add the file as a link.
For Visual Basic, right-click the CustdbScripts project and select the table Properties » General. Make sure that the text field Root Namespace is cleared of all text.
Build CustdbScripts.dll.
From the Build menu, choose Build CustdbScripts.
This creates CustdbScripts.dll in C:\mldnet\CustdbScripts\CustdbScripts\bin\Debug.
♦ To create the CustdbScripts assembly at a command promptCreate a directory for the .NET class and assembly.
This tutorial assumes the path c:\mldnet.
Using a text editor, enter the CustdbScripts code.
The sample code in this tutorial illustrates a deprecated coding practice. It is recommended that you do not return SQL code when writing Java or .NET scripts. You should use make changes to the consolidated database directly from Java or .NET.
For more information, see Direct row handling.
For C#, type:
namespace MLExample
{
class CustdbScripts
{
public static string UploadInsert()
{
return("INSERT INTO ulcustomer(cust_id,cust_name) values (?,?)");
}
public static string DownloadCursor(System.DateTime ts, string user )
{
return("SELECT cust_id, cust_name FROM ULCustomer where last_modified >= '" + ts.ToString("yyyy-MM-dd hh:mm:ss.fff") +"'");
}
}
} |
For Visual Basic, type:
Namespace MLExample
Class CustdbScripts
Public Shared Function UploadInsert() As String
Return("INSERT INTO ULCustomer(cust_id,cust_name) values (?,?)")
End Function
Public Shared Function DownloadCursor(ByVal ts As System.DateTime, ByVal user As String) As String
Return("SELECT cust_id, cust_name FROM ULCustomer " + _
"WHERE last_modified >= '" + ts.ToString("yyyy-MM-dd hh:mm:ss.fff") +"'")
End Function
End Class
End Namespace |
Save the file as CustdbScripts.cs ( CustdbScripts.vb for Visual Basic ) in c:\mldnet.
Compile the file.
For C#, run the following command:
csc /out:c:\mldnet\custdbscripts.dll /target:library /reference:"C:\Program Files\SQL Anywhere 12\Assembly\v2\iAnywhere.MobiLink.Script.dll" c:\mldnet\CustdbScripts.cs |
For Visual Basic, run the following command:
vbc /out:c:\mldnet\custdbscripts.dll /target:library /reference:"C:\Program Files\SQL Anywhere 12\Assembly\v2\iAnywhere.MobiLink.Script.dll" c:\mldnet\CustdbScripts.vb |
The CustdbScripts.dll assembly is generated.
Further reading |
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