StripeStoreEngine (Apache HBase 1.2.12 API)

java.lang.Object
- org.apache.hadoop.hbase.regionserver.StoreEngine<StripeStoreFlusher,StripeCompactionPolicy,StripeCompactor,StripeStoreFileManager>
- - org.apache.hadoop.hbase.regionserver.StripeStoreEngine

@InterfaceAudience.LimitedPrivate(value="Configuration")
public class StripeStoreEngine
extends StoreEngine<StripeStoreFlusher,StripeCompactionPolicy,StripeCompactor,StripeStoreFileManager>

The storage engine that implements the stripe-based store/compaction scheme.

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

private class StripeStoreEngine.StripeCompaction
Represents one instance of stripe compaction, with the necessary context and flow.

Nested Classes
Modifier and Type	Class and Description
`private class`	`StripeStoreEngine.StripeCompaction` Represents one instance of stripe compaction, with the necessary context and flow.

Field Summary

Fields
Modifier and Type Field and Description

private StripeStoreConfig config

private static org.apache.commons.logging.Log LOG
- Fields inherited from class org.apache.hadoop.hbase.regionserver.StoreEngine
  compactionPolicy, compactor, STORE_ENGINE_CLASS_KEY, storeFileManager, storeFlusher

Fields
Modifier and Type	Field and Description
`private StripeStoreConfig`	`config`
`private static org.apache.commons.logging.Log`	`LOG`

Constructor Summary

Constructors
Constructor and Description

StripeStoreEngine()

Constructors
Constructor and Description
`StripeStoreEngine()`

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 comparator)` 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
  - LOG
```
private static final org.apache.commons.logging.Log LOG
```
  - config
```
private StripeStoreConfig config
```
- Constructor Detail
  - StripeStoreEngine
```
public StripeStoreEngine()
```
- Method Detail
  - needsCompaction
```
public boolean needsCompaction(List<StoreFile> filesCompacting)
```
    Specified by:
    
    needsCompaction in class StoreEngine<StripeStoreFlusher,StripeCompactionPolicy,StripeCompactor,StripeStoreFileManager>
    
    Parameters:
    filesCompacting - Files currently compacting
    
    Returns:
    whether a compaction selection is possible
  - 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<StripeStoreFlusher,StripeCompactionPolicy,StripeCompactor,StripeStoreFileManager>
    
    Returns:
    New CompactionContext object.
  - createComponents
```
protected void createComponents(org.apache.hadoop.conf.Configuration conf,
                    Store store,
                    KeyValue.KVComparator comparator)
                         throws IOException
```
    Description copied from class: StoreEngine
    
    Create the StoreEngine's components.
    
    Specified by:
    
    createComponents in class StoreEngine<StripeStoreFlusher,StripeCompactionPolicy,StripeCompactor,StripeStoreFileManager>
    
    Throws:
    
    IOException

Class StripeStoreEngine

Nested Class Summary

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

LOG

config

Constructor Detail

StripeStoreEngine

Method Detail

needsCompaction

createCompaction

createComponents