MergeScheduler (Jackrabbit Oak 1.88.0 API)

java.lang.Object
- org.apache.lucene.index.MergeScheduler

All Implemented Interfaces:

Closeable, AutoCloseable, Cloneable

Direct Known Subclasses:

ConcurrentMergeScheduler, NoMergeScheduler, SerialMergeScheduler
```
public abstract class MergeScheduler
extends Object
implements Closeable, Cloneable
```
Expert: IndexWriter uses an instance implementing this interface to execute the merges selected by a MergePolicy. The default MergeScheduler is ConcurrentMergeScheduler.

Implementers of sub-classes should make sure that clone() returns an independent instance able to work with any IndexWriter instance.

Constructor Summary

Constructors
Modifier Constructor Description

protected MergeScheduler()
Sole constructor.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`MergeScheduler`	`clone()`
`abstract void`	`close()`	Close this MergeScheduler.
`abstract void`	`merge(IndexWriter writer)`	Run the merges provided by `IndexWriter.getNextMerge()`.

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - MergeScheduler
```
protected MergeScheduler()
```
    Sole constructor. (For invocation by subclass constructors, typically implicit.)
- Method Detail
  - merge
```
public abstract void merge(IndexWriter writer)
                    throws IOException
```
    Run the merges provided by IndexWriter.getNextMerge().
    
    Throws:
    
    IOException
  - close
```
public abstract void close()
                    throws IOException
```
    Close this MergeScheduler.
    
    Specified by:
    
    close in interface AutoCloseable
    
    Specified by:
    
    close in interface Closeable
    
    Throws:
    
    IOException
  - clone
```
public MergeScheduler clone()
```
    Overrides:
    
    clone in class Object