(Java) Transition from MailMan.GetHeaders to MailMan.FetchRange

Provides instructions for replacing deprecated GetHeaders method calls with FetchRange.

Note: This example requires Chilkat v11.0.0 or greater.

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    CkMailMan mailman = new CkMailMan();

    // ...
    // ...

    int numBodyLines = 3;
    int fromIndex = 0;
    int toIndex = 9;

    // ------------------------------------------------------------------------
    // The GetHeaders method is deprecated:

    CkEmailBundle bundleObj = mailman.GetHeaders(numBodyLines,fromIndex,toIndex);
    if (mailman.get_LastMethodSuccess() == false) {
        System.out.println(mailman.lastErrorText());
        return;
        }

    // ...
    // ...

    // ------------------------------------------------------------------------
    // Do the equivalent using FetchRange.
    // Your application creates a new, empty EmailBundle object which is passed 
    // in the last argument and filled upon success.

    boolean keepOnServer = true;
    boolean headersOnly = true;

    CkEmailBundle bundleOut = new CkEmailBundle();
    boolean success = mailman.FetchRange(keepOnServer,headersOnly,numBodyLines,fromIndex,toIndex,bundleOut);
    if (success == false) {
        System.out.println(mailman.lastErrorText());
        return;
        }
  }
}