DirectMemoryManager (Pinot local segment implementations 0.12.1 API)

java.lang.Object
- org.apache.pinot.segment.local.io.readerwriter.RealtimeIndexOffHeapMemoryManager
- - org.apache.pinot.segment.local.io.writer.impl.DirectMemoryManager

All Implemented Interfaces:

Closeable, AutoCloseable, PinotDataBufferMemoryManager
```
public class DirectMemoryManager
extends RealtimeIndexOffHeapMemoryManager
```

Constructor Summary

Constructors
Constructor Description

DirectMemoryManager(String segmentName)

DirectMemoryManager(String segmentName, ServerMetrics serverMetrics)

Method Summary

Modifier and Type	Method	Description
`protected PinotDataBuffer`	`allocateInternal(long size, String allocationContext)`
`protected void`	`doClose()`	Method to be implemented by inheriting concrete classes

Methods inherited from class org.apache.pinot.segment.local.io.readerwriter.RealtimeIndexOffHeapMemoryManager
allocate, close, getTotalAllocatedBytes

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

- Constructor Detail
  - DirectMemoryManager
```
public DirectMemoryManager(String segmentName,
                           ServerMetrics serverMetrics)
```
    See Also:
    
    RealtimeIndexOffHeapMemoryManager
  - DirectMemoryManager
```
public DirectMemoryManager(String segmentName)
```
- Method Detail
  - allocateInternal
```
protected PinotDataBuffer allocateInternal(long size,
                                           String allocationContext)
```
    Specified by:
    
    allocateInternal in class RealtimeIndexOffHeapMemoryManager
    
    Parameters:
    
    size - size of memory
    
    allocationContext - String describing context of allocation (typically segment:column name).
    
    Returns:
    
    PinotDataBuffer via direct allocation
    
    See Also:
    
    RealtimeIndexOffHeapMemoryManager.allocate(long, String)
  - doClose
```
protected void doClose()
```
    Description copied from class: RealtimeIndexOffHeapMemoryManager
    
    Method to be implemented by inheriting concrete classes
    
    Specified by:
    
    doClose in class RealtimeIndexOffHeapMemoryManager