SimpleCompactionDispatcher (Apache Accumulo Core 2.1.0-SNAPSHOT API)

java.lang.Object
- org.apache.accumulo.core.spi.compaction.SimpleCompactionDispatcher

All Implemented Interfaces:

CompactionDispatcher
```
public class SimpleCompactionDispatcher
extends Object
implements CompactionDispatcher
```
Dispatcher that supports simple configuration for making tables use compaction services. By default it dispatches to a compction service named default.
The following schema is supported for configration options.
table.compaction.dispatcher.opts.service[.user[.<user type>]|selected|system|chop]= <service>
The following configuration will make a table use compaction service cs9 for user compactions, service cs4 for chop compactions, and service cs7 for everything else.
table.compaction.dispatcher.opts.service=cs7 table.compaction.dispatcher.opts.service.user=cs9 table.compaction.dispatcher.opts.service.chop=cs4
Compactions started using the client API are called user compactions and can set execution hints using CompactionConfig.setExecutionHints(Map). Hints of the form compaction_type=<user type> can be used by this dispatcher. For example the following will use service cs2 when the hint compaction_type=urgent is seen, service cs3 when hint compaction_type=trifling, everything else uses cs9.
table.compaction.dispatcher.opts.service=cs9 table.compaction.dispatcher.opts.service.user.urgent=cs2 table.compaction.dispatcher.opts.service.user.trifling=cs3

See Also:

org.apache.accumulo.core.spi.compaction

Nested Class Summary
- Nested classes/interfaces inherited from interface org.apache.accumulo.core.spi.compaction.CompactionDispatcher
  CompactionDispatcher.DispatchParameters, CompactionDispatcher.InitParameters

Constructor Summary

Constructors
Constructor Description

SimpleCompactionDispatcher()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`CompactionDirectives`	`dispatch(CompactionDispatcher.DispatchParameters params)`	Accumulo calls this method for compactions to determine what service to use.
`void`	`init(CompactionDispatcher.InitParameters params)`	This method is called once after a CompactionDispatcher is instantiated.

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

- Constructor Detail
  - SimpleCompactionDispatcher
```
public SimpleCompactionDispatcher()
```
- Method Detail
  - init
```
public void init(CompactionDispatcher.InitParameters params)
```
    Description copied from interface: CompactionDispatcher
    
    This method is called once after a CompactionDispatcher is instantiated.
    
    Specified by:
    
    init in interface CompactionDispatcher
  - dispatch
```
public CompactionDirectives dispatch(CompactionDispatcher.DispatchParameters params)
```
    Description copied from interface: CompactionDispatcher
    
    Accumulo calls this method for compactions to determine what service to use.
    
    Specified by:
    
    dispatch in interface CompactionDispatcher