Java by API/javax.microedition.rms/RecordListener

implements RecordListener

   <source lang="java">

 

import javax.microedition.midlet.MIDlet; import javax.microedition.rms.RecordComparator; import javax.microedition.rms.RecordFilter; import javax.microedition.rms.RecordListener; import javax.microedition.rms.RecordStore; import javax.microedition.rms.RecordStoreNotOpenException; class TestDB implements RecordListener {

 public void recordAdded(RecordStore rs, int id) {
   try {
     System.out.println(rs.getName() + " added record " + id);
   } catch (RecordStoreNotOpenException e) {
   }
 }
 public void recordChanged(RecordStore rs, int id) {
   try {
     System.out.println(rs.getName() + " changed record " + id);
   } catch (RecordStoreNotOpenException e) {
   }
 }
 public void recordDeleted(RecordStore rs, int id) {
   try {
     System.out.println(rs.getName() + " removed record " + id);
   } catch (RecordStoreNotOpenException e) {
   }
 }

} class TestFilter implements RecordFilter {

 public boolean matches(byte[] rec) {
   String r = new String(rec);
   return ((r.charAt(0) == "a") || (r.charAt(0) == "A"));
 }

} class TestComparator implements RecordComparator {

 public int compare(byte[] rec1, byte[] rec2) {
   String r1 = new String(rec1);
   String r2 = new String(rec2);
   if (r1.rupareTo(r2) > 0)
     return (RecordComparator.FOLLOWS);
   else if (r1.rupareTo(r2) < 0)
     return (RecordComparator.PRECEDES);
   else
     return (RecordComparator.EQUIVALENT);
 }

} public class J2METestDBTest extends MIDlet {

 public void startApp() {
   try {
     RecordStore anRMS = RecordStore.openRecordStore("TestRMS", true);
     anRMS.addRecordListener(new TestDB());
     String test = "This is a test";
     byte[] b = test.getBytes();
     anRMS.addRecord(b, 8, 6);
     anRMS.addRecord(b, 5, 2);
     RecordComparator rc = new TestComparator();
     byte[] r1 = anRMS.getRecord(1);
     byte[] r2 = anRMS.getRecord(2);
     System.out.println(rc.rupare(r1, r2));
   } catch (Exception e) {
   }
 }
 public void pauseApp() {
 }
 public void destroyApp(boolean unconditional) {
 }

}

 </source>