it is not possible register hook to remote grap database with adding lib file to server folder?

[Saltık Buğra Avcı]

I want  to create a Hook to handler create delete update  of command execution .

for example if i call  graph.command(OSqlCommand("create edge has_notification from .. to ... ").execute();
do some operations  ( something like listener for has_notifcation)
i tried this example  connecting my local db server  like on the example..

but couldnt register the hook to the server ..

public class HookTest extends ORecordHookAbstract { public saveProfile(){ ODatabaseObjectTx database = new ODatabaseObjectTx("remote:localhost/demo"); database.open("writer", "writer");
 // REGISTER MYSELF AS HOOK
 database.registerHook(this);

//didnt try this will work or not ...
 p = new Profile("Luca"); p.setAge(10000); database.save(p);
// but i want something like this


 database.registerHook(this);
graph.command(OSqlCommand("create edge has_notification from .. to ... ").execute();

 database.unRegisterHook(this);

 } }

[SavioL]

hi,
I write you a working example that I had done so you can adapt it to your purposes:

MAIN CLASS

import java.io.IOException;

public class Hook {

    static final String REMOTE         = "remote:localhost/";
    static final String NOMEDB         = "hook";
    static final String CURRENTPATH    = REMOTE + NOMEDB;
   
    public static void main(String[] args) throws IOException {

        HookTest hookTest = new HookTest(CURRENTPATH);

    }

}

CLASS HOOKTEST

import com.orientechnologies.orient.core.hook.ORecordHookAbstract;
import com.orientechnologies.orient.core.record.ORecord;
import com.orientechnologies.orient.core.record.impl.ODocument;
import com.orientechnologies.orient.object.db.OObjectDatabaseTx;

import altreClassi.ObjectHook;

public class HookTest extends ORecordHookAbstract {

   
    private OObjectDatabaseTx database = null;
   
    public HookTest(String currentPath){
       
        System.out.println("Class HookTest instantiated...");
       
        this.database = new OObjectDatabaseTx (currentPath);
        database.open("root","root");
       
        saveMyObject();
    }
   
    public void saveMyObject() {

        // REGISTER MYSELF AS HOOK
        database.registerHook(this);

       
        //myobject
        database.getEntityManager().registerEntityClass(ObjectHook.class);
        ObjectHook objectHook = new ObjectHook();
        objectHook.setScore(100);
       
        System.out.println("save objectHook...");
       
        database.save(objectHook);
    }
   
    /**
       * Custom validation rules
       */
     
      @Override
        public RESULT onRecordBeforeCreate(ORecord iRecord) {

          System.out.println("start hook");
         
          if( iRecord instanceof ODocument ){
              ODocument doc = (ODocument) iRecord;
              Integer score = doc .field( "score" );
              if( score > 99 ){
                  System.out.println("Score > 99");
              }  
            }
            return super.onRecordBeforeCreate(iRecord);
        }

    @Override
    public DISTRIBUTED_EXECUTION_MODE getDistributedExecutionMode() {
        // TODO Auto-generated method stub
        return null;
    }
   
}

CLASS MY OBJECT (ObjectHook)

public class ObjectHook {
   
    private int score = 0;
   
    public void setScore (int value) {
        this.score = value;
    }
   
    public int getScore () {
        return this.score;
    }
}

The result is:

I hope will be of help.

[Saltık Buğra Avcı]

First of all ..
Thank you for answer
i thought that  hooks work like triggers
but  it semes that it only works with save...  not works with command...