How to use

createIndex

method

in

io.vertx.ext.mongo.MongoService

public io.vertx.rxjava.ext.mongo.MongoService createIndex(String collection, JsonObject key, Handler<AsyncResult<Void>> resultHandler) { 
 delegate.createIndex(collection, key, resultHandler);
 return this;
}

public static io.vertx.ext.mongo.MongoService createIndex(io.vertx.ext.mongo.MongoService j_receiver, java.lang.String collection, java.util.Map<String, Object> key, io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>> resultHandler) {
 io.vertx.core.impl.ConversionHelper.fromObject(j_receiver.createIndex(collection,
  key != null ? io.vertx.core.impl.ConversionHelper.toJsonObject(key) : null,
  resultHandler != null ? new io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>>() {
  public void handle(io.vertx.core.AsyncResult<java.lang.Void> ar) {
   resultHandler.handle(ar.map(event -> io.vertx.core.impl.ConversionHelper.fromObject(event)));
  }
 } : null));
 return j_receiver;
}
public static io.vertx.ext.mongo.MongoService createIndexWithOptions(io.vertx.ext.mongo.MongoService j_receiver, java.lang.String collection, java.util.Map<String, Object> key, java.util.Map<String, Object> options, io.vertx.core.Handler<io.vertx.core.AsyncResult<java.lang.Void>> resultHandler) {