Counter

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

Direct Known Subclasses:

Counter.AtomicCounter, Counter.SerialCounter
```
public abstract class Counter
extends java.lang.Object
```
Simple counter class

Nested Class Summary

Nested Classes
Modifier and Type Class Description

private static class Counter.AtomicCounter

private static class Counter.SerialCounter

Constructor Summary

Constructors
Constructor Description

Counter()

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
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
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.