Package org.apache.lucene.util

Class Counter

java.lang.Object
org.apache.lucene.util.Counter
public abstract class Counter extends Object
Simple counter class

  • Constructor Summary

    Constructors
    Constructor
    Description
    Counter()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    abstract long
    addAndGet(long delta)
    Adds the given delta to the counters current value
    abstract long
    get()
    Returns the counters current value
    static Counter
    newCounter()
    Returns a new counter.
    static Counter
    newCounter(boolean threadSafe)
    Returns a new counter.

    Methods inherited from class java.lang.Object

    equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Counter

      public Counter()

  • Method Details

    • addAndGet

      public abstract long addAndGet(long delta)
      Adds the given delta to the counters current value
      Parameters:
      delta - the delta to add
      Returns:
      the counters updated value

    • get

      public abstract long get()
      Returns the counters current value
      Returns:
      the counters current value

    • newCounter

      public static Counter newCounter()
      Returns a new counter. The returned counter is not thread-safe.

    • newCounter

      public static Counter newCounter(boolean threadSafe)
      Returns a new counter.
      Parameters:
      threadSafe - true if the returned counter can be used by multiple threads concurrently.
      Returns:
      a new counter.