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javaorientdbnosql

Clear OrientDB database

Given a com.orientechnologies.orient.core.db.ODatabase<T> object, what's the best programmatical way (no sql, no console script) to clear the database (that's erase each and every object but respect the existing schema)?

Solution

  • Based on Alessandro's comment and rmuller's answer to this question, I've built a java helper method.

    db.getMetadata().getSchema().getClasses().stream()
     .filter(oClass -> !oClass.getName().startsWith(ORIENTDB_CLASS_PREFIX)) //
     .forEach(oClass -> {
          try {
              oClass.truncate();
          } catch (IOException e) {
              LOGGER.warn("Not possible to truncate class " + oClass.getName(), e);
          }
     });