## org.apache.lucene.util
Class Counter

    java.lang.Object
      org.apache.lucene.util.Counter

    public abstract class Counter

extends Object

Simple counter class

WARNING: This API is experimental and might change in incompatible ways in the next release.
NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

Constructor Summary
`Counter()`

Method Summary
`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
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### Counter

    public Counter()

Method Detail

### 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.