Explicit metrics reading/exporting instead keeps sending Metrics on fix intervals.

[swapnil-kotwal-sp]

I'm having below implementation of PeriodicMetricReader which actually keeps sending Metrics on fix intervals of 60 seconds

 public static OpenTelemetry initOpenTelemetry() {
    // Create an instance of PeriodicMetricReader and configure it
    // to export via the logging exporter
    MetricReader periodicReader =
        PeriodicMetricReader.builder(LoggingMetricExporter.create())
            .setInterval(Duration.ofSeconds(METRICS_EXPORT_INTERVAL_SEC))
            .build();

    // This will be used to create instruments
    SdkMeterProvider meterProvider =
        SdkMeterProvider.builder().registerMetricReader(periodicReader).build();

    // Tracer provider configured to export spans with SimpleSpanProcessor using
    // the logging exporter.
    SdkTracerProvider tracerProvider =
        SdkTracerProvider.builder()
            .addSpanProcessor(SimpleSpanProcessor.create(LoggingSpanExporter.create()))
            .build();
    return OpenTelemetrySdk.builder()
        .setMeterProvider(meterProvider)
        .setTracerProvider(tracerProvider)
        .buildAndRegisterGlobal();
  }

Can I change it something that it should only send metrics when there is new operation get called or an event happened instead of constantly sending data to Otel-collector at fix intervals?

I found some discussions here and here as well but didn't get any java examples. Can someone please help me with?