Class SolrMetricManager.GaugeWrapper<T>

  • All Implemented Interfaces:
    com.codahale.metrics.Gauge<T>, com.codahale.metrics.Metric
    Enclosing class:

    public static class SolrMetricManager.GaugeWrapper<T>
    extends Object
    implements com.codahale.metrics.Gauge<T>
    This is a wrapper for Gauge metrics, which are usually implemented as lambdas that often keep a reference to their parent instance. In order to make sure that all such metrics are removed when their parent instance is removed / closed the metric is associated with an instance tag, which can be used then to remove wrappers with the matching tag using SolrMetricManager.unregisterGauges(String, String).
    • Constructor Detail

      • GaugeWrapper

        public GaugeWrapper​(com.codahale.metrics.Gauge<T> gauge,
                            String tag)
    • Method Detail

      • getValue

        public T getValue()
        Specified by:
        getValue in interface com.codahale.metrics.Gauge<T>
      • getTag

        public String getTag()
      • getGauge

        public com.codahale.metrics.Gauge<T> getGauge()