Creating a callout

Callout is mainly used to perform some dynamic actions when a value in a particular field is changed. Each field in ADempiere maps to a column in a particular table, so callout is configured at column level. Callout is a Java method that gets invoked when there is a change in the field data in a tab.

Getting ready

Launch Eclipse and open the adempiere_360 project in it.

How to do it...

1. 1. Create a class, say, CalloutMom, in the org.compiere.model package.

   package org.compiere.model;
   import java.sql.PreparedStatement;
   import java.sql.ResultSet;
   import java.sql.SQLException;
   import java.util.Properties;
   import java.util.logging.Level;
   import org.compiere.util.DB;
   import org.compiere.util.Env;
   /**
   *
   * @author Ajit Kumar ([e-mail])
   *
   */
   public class CalloutMom extends CalloutEngine {
   /**
   * Return the next item number available for a MOM
   * @param ctx Context
   * @param WindowNo current Window No
   * @param mTab Model Tab
   * @param mField Model Field
   * @param value The...