Java hook only for one specific orientDB database

Question

I have been able to create a java hook exactly with the method specified here: https://orientdb.com/docs/2.2.x/Tutorial-Java-Hooks.html

But I don't want my hook to run for every database present on the server. I want to enable it only for one specific database.

Is it possible to do that simply by specifying it declaratively on the orientdb-server-config.xml ? or By configuring the hook in my Java class extending ODocumentHookAbstract ? Otherwise any idea how to do it programmatically ?

Answer 1

You can do this programatically by conditionally registering your hook based on the database name and implementing the database life cycle listener ODatabaseLifecycleListener. From the docs on hook self registration, you can do this in the overridden onOpen() method with something like:

public class MyHook extends ODocumentHookAbstract implements ODatabaseLifecycleListener {

 ...

  @Override
  public void onOpen(final ODatabase iDatabase) {
    if("someSpecificDatabaseName".equals(iDatabase.getName()) {
      // REGISTER THE HOOK
      ((ODatabaseComplex<?>)iDatabase).registerHook(this);
    }
  }
}

ODatabase.getName() javadoc