PreferredVolumeChooser (Apache Accumulo Server Base 1.10.2 API)

java.lang.Object
- org.apache.accumulo.server.fs.RandomVolumeChooser
- - org.apache.accumulo.server.fs.PreferredVolumeChooser

All Implemented Interfaces:

VolumeChooser
```
public class PreferredVolumeChooser
extends RandomVolumeChooser
```
A RandomVolumeChooser that limits its choices from a given set of options to the subset of those options preferred for a particular table. Defaults to selecting from all of the options presented. Can be customized via the table property "table.custom.preferredVolumes", which should contain a comma separated list of Volume URIs. Note that both the property name and the format of its value are specific to this particular implementation.

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  static String PREFERRED_VOLUMES_CUSTOM_KEY
  This should match Property.TABLE_ARBITRARY_PROP_PREFIX
- Constructor Summary
  
  Constructors
  Constructor Description
  
  PreferredVolumeChooser()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  String choose(VolumeChooserEnvironment env, String[] options)
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - PREFERRED_VOLUMES_CUSTOM_KEY
```
public static final String PREFERRED_VOLUMES_CUSTOM_KEY
```
    This should match Property.TABLE_ARBITRARY_PROP_PREFIX
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - PreferredVolumeChooser
```
public PreferredVolumeChooser()
```
- Method Detail
  - choose
```
public String choose(VolumeChooserEnvironment env,
                     String[] options)
```
    Specified by:
    
    choose in interface VolumeChooser
    
    Overrides:
    
    choose in class RandomVolumeChooser