DefaultStoreEngine (Apache HBase 1.4.11 API)

java.lang.Object
- org.apache.hadoop.hbase.regionserver.StoreEngine<DefaultStoreFlusher,RatioBasedCompactionPolicy,DefaultCompactor,org.apache.hadoop.hbase.regionserver.DefaultStoreFileManager>
- - org.apache.hadoop.hbase.regionserver.DefaultStoreEngine

@InterfaceAudience.LimitedPrivate(value="Configuration")
public class DefaultStoreEngine
extends StoreEngine<DefaultStoreFlusher,RatioBasedCompactionPolicy,DefaultCompactor,org.apache.hadoop.hbase.regionserver.DefaultStoreFileManager>

Default StoreEngine creates the default compactor, policy, and store file manager, or their derivatives.

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`DEFAULT_COMPACTION_POLICY_CLASS_KEY`
`static String`	`DEFAULT_COMPACTOR_CLASS_KEY`
`static String`	`DEFAULT_STORE_FLUSHER_CLASS_KEY`

Fields inherited from class org.apache.hadoop.hbase.regionserver.StoreEngine
compactionPolicy, compactor, STORE_ENGINE_CLASS_KEY, storeFileManager, storeFlusher

Constructor Summary

Constructors
Constructor and Description

DefaultStoreEngine()

Constructors
Constructor and Description
`DefaultStoreEngine()`

Method Summary

Methods
Modifier and Type	Method and Description
`CompactionContext`	`createCompaction()` Creates an instance of a compaction context specific to this engine.
`protected void`	`createComponents(org.apache.hadoop.conf.Configuration conf, Store store, KeyValue.KVComparator kvComparator)` Create the StoreEngine's components.
`boolean`	`needsCompaction(List<StoreFile> filesCompacting)`

Methods inherited from class org.apache.hadoop.hbase.regionserver.StoreEngine
create, getCompactionPolicy, getCompactor, getStoreFileManager, getStoreFlusher

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

- Field Detail
  - DEFAULT_STORE_FLUSHER_CLASS_KEY
```
public static final String DEFAULT_STORE_FLUSHER_CLASS_KEY
```
    See Also:
    Constant Field Values
  - DEFAULT_COMPACTOR_CLASS_KEY
```
public static final String DEFAULT_COMPACTOR_CLASS_KEY
```
    See Also:
    Constant Field Values
  - DEFAULT_COMPACTION_POLICY_CLASS_KEY
```
public static final String DEFAULT_COMPACTION_POLICY_CLASS_KEY
```
    See Also:
    Constant Field Values
- Constructor Detail
  - DefaultStoreEngine
```
public DefaultStoreEngine()
```
- Method Detail
  - needsCompaction
```
public boolean needsCompaction(List<StoreFile> filesCompacting)
```
    Specified by:
    
    needsCompaction in class StoreEngine<DefaultStoreFlusher,RatioBasedCompactionPolicy,DefaultCompactor,org.apache.hadoop.hbase.regionserver.DefaultStoreFileManager>
    
    Parameters:
    filesCompacting - Files currently compacting
    
    Returns:
    whether a compaction selection is possible
  - createComponents
```
protected void createComponents(org.apache.hadoop.conf.Configuration conf,
                    Store store,
                    KeyValue.KVComparator kvComparator)
                         throws IOException
```
    Description copied from class: StoreEngine
    
    Create the StoreEngine's components.
    
    Specified by:
    
    createComponents in class StoreEngine<DefaultStoreFlusher,RatioBasedCompactionPolicy,DefaultCompactor,org.apache.hadoop.hbase.regionserver.DefaultStoreFileManager>
    
    Throws:
    
    IOException
  - createCompaction
```
public CompactionContext createCompaction()
```
    Description copied from class: StoreEngine
    
    Creates an instance of a compaction context specific to this engine. Doesn't actually select or start a compaction. See CompactionContext class comment.
    
    Specified by:
    
    createCompaction in class StoreEngine<DefaultStoreFlusher,RatioBasedCompactionPolicy,DefaultCompactor,org.apache.hadoop.hbase.regionserver.DefaultStoreFileManager>
    
    Returns:
    New CompactionContext object.

Class DefaultStoreEngine

Field Summary

Fields inherited from class org.apache.hadoop.hbase.regionserver.StoreEngine

Constructor Summary

Method Summary

Methods inherited from class org.apache.hadoop.hbase.regionserver.StoreEngine

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_STORE_FLUSHER_CLASS_KEY

DEFAULT_COMPACTOR_CLASS_KEY

DEFAULT_COMPACTION_POLICY_CLASS_KEY

Constructor Detail

DefaultStoreEngine

Method Detail

needsCompaction

createComponents

createCompaction