DrillByteBufAllocator (Drill : 1.20.3 API)

java.lang.Object
- io.netty.buffer.AbstractByteBufAllocator
- - org.apache.drill.exec.memory.DrillByteBufAllocator

All Implemented Interfaces:

io.netty.buffer.ByteBufAllocator
```
public class DrillByteBufAllocator
extends io.netty.buffer.AbstractByteBufAllocator
```
An extend of AbstractByteBufAllocator that wraps a Drill BufferAllocator. This allows the RPC layer to be accounted and managed using Drill's BufferAllocator infrastructure. The only thin different from a typical BufferAllocator is the signature and the fact that this Allocator returns ExpandableByteBufs which enable otherwise non-expandable DrillBufs to be expandable. Beside it, DrillByteBufAllocator uses PooledByteBufAllocatorL.InnerAllocator as allocator only for heapBuffer's for netty's purposes, when it directly calls heapBuffer methods.

Field Summary
- Fields inherited from interface io.netty.buffer.ByteBufAllocator
  DEFAULT

Constructor Summary

Constructors
Constructor and Description

DrillByteBufAllocator(BufferAllocator allocator)

Constructors
Constructor and Description
`DrillByteBufAllocator(BufferAllocator allocator)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`io.netty.buffer.ByteBuf`	`buffer()`
`io.netty.buffer.ByteBuf`	`buffer(int initialCapacity)`
`io.netty.buffer.ByteBuf`	`buffer(int initialCapacity, int maxCapacity)`
`io.netty.buffer.CompositeByteBuf`	`compositeBuffer()`
`io.netty.buffer.CompositeByteBuf`	`compositeBuffer(int maxNumComponents)`
`io.netty.buffer.CompositeByteBuf`	`compositeDirectBuffer()`
`io.netty.buffer.CompositeByteBuf`	`compositeDirectBuffer(int maxNumComponents)`
`io.netty.buffer.CompositeByteBuf`	`compositeHeapBuffer()`
`io.netty.buffer.CompositeByteBuf`	`compositeHeapBuffer(int maxNumComponents)`
`io.netty.buffer.ByteBuf`	`directBuffer()`
`io.netty.buffer.ByteBuf`	`directBuffer(int initialCapacity)`
`io.netty.buffer.ByteBuf`	`directBuffer(int initialCapacity, int maxCapacity)`
`io.netty.buffer.ByteBuf`	`ioBuffer()`
`io.netty.buffer.ByteBuf`	`ioBuffer(int initialCapacity)`
`io.netty.buffer.ByteBuf`	`ioBuffer(int initialCapacity, int maxCapacity)`
`boolean`	`isDirectBufferPooled()`
`protected io.netty.buffer.ByteBuf`	`newDirectBuffer(int initialCapacity, int maxCapacity)`
`protected io.netty.buffer.ByteBuf`	`newHeapBuffer(int initialCapacity, int maxCapacity)`

Methods inherited from class io.netty.buffer.AbstractByteBufAllocator
calculateNewCapacity, heapBuffer, heapBuffer, heapBuffer, toLeakAwareBuffer, toLeakAwareBuffer, toString

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

- Constructor Detail
  - DrillByteBufAllocator
```
public DrillByteBufAllocator(BufferAllocator allocator)
```
- Method Detail
  - buffer
```
public io.netty.buffer.ByteBuf buffer()
```
    Specified by:
    
    buffer in interface io.netty.buffer.ByteBufAllocator
    
    Overrides:
    
    buffer in class io.netty.buffer.AbstractByteBufAllocator
  - buffer
```
public io.netty.buffer.ByteBuf buffer(int initialCapacity)
```
    Specified by:
    
    buffer in interface io.netty.buffer.ByteBufAllocator
    
    Overrides:
    
    buffer in class io.netty.buffer.AbstractByteBufAllocator
  - buffer
```
public io.netty.buffer.ByteBuf buffer(int initialCapacity,
                                      int maxCapacity)
```
    Specified by:
    
    buffer in interface io.netty.buffer.ByteBufAllocator
    
    Overrides:
    
    buffer in class io.netty.buffer.AbstractByteBufAllocator
  - ioBuffer
```
public io.netty.buffer.ByteBuf ioBuffer()
```
    Specified by:
    
    ioBuffer in interface io.netty.buffer.ByteBufAllocator
    
    Overrides:
    
    ioBuffer in class io.netty.buffer.AbstractByteBufAllocator
  - ioBuffer
```
public io.netty.buffer.ByteBuf ioBuffer(int initialCapacity)
```
    Specified by:
    
    ioBuffer in interface io.netty.buffer.ByteBufAllocator
    
    Overrides:
    
    ioBuffer in class io.netty.buffer.AbstractByteBufAllocator
  - ioBuffer
```
public io.netty.buffer.ByteBuf ioBuffer(int initialCapacity,
                                        int maxCapacity)
```
    Specified by:
    
    ioBuffer in interface io.netty.buffer.ByteBufAllocator
    
    Overrides:
    
    ioBuffer in class io.netty.buffer.AbstractByteBufAllocator
  - directBuffer
```
public io.netty.buffer.ByteBuf directBuffer()
```
    Specified by:
    
    directBuffer in interface io.netty.buffer.ByteBufAllocator
    
    Overrides:
    
    directBuffer in class io.netty.buffer.AbstractByteBufAllocator
  - directBuffer
```
public io.netty.buffer.ByteBuf directBuffer(int initialCapacity)
```
    Specified by:
    
    directBuffer in interface io.netty.buffer.ByteBufAllocator
    
    Overrides:
    
    directBuffer in class io.netty.buffer.AbstractByteBufAllocator
  - directBuffer
```
public io.netty.buffer.ByteBuf directBuffer(int initialCapacity,
                                            int maxCapacity)
```
    Specified by:
    
    directBuffer in interface io.netty.buffer.ByteBufAllocator
    
    Overrides:
    
    directBuffer in class io.netty.buffer.AbstractByteBufAllocator
  - compositeBuffer
```
public io.netty.buffer.CompositeByteBuf compositeBuffer()
```
    Specified by:
    
    compositeBuffer in interface io.netty.buffer.ByteBufAllocator
    
    Overrides:
    
    compositeBuffer in class io.netty.buffer.AbstractByteBufAllocator
  - compositeBuffer
```
public io.netty.buffer.CompositeByteBuf compositeBuffer(int maxNumComponents)
```
    Specified by:
    
    compositeBuffer in interface io.netty.buffer.ByteBufAllocator
    
    Overrides:
    
    compositeBuffer in class io.netty.buffer.AbstractByteBufAllocator
  - compositeDirectBuffer
```
public io.netty.buffer.CompositeByteBuf compositeDirectBuffer()
```
    Specified by:
    
    compositeDirectBuffer in interface io.netty.buffer.ByteBufAllocator
    
    Overrides:
    
    compositeDirectBuffer in class io.netty.buffer.AbstractByteBufAllocator
  - compositeDirectBuffer
```
public io.netty.buffer.CompositeByteBuf compositeDirectBuffer(int maxNumComponents)
```
    Specified by:
    
    compositeDirectBuffer in interface io.netty.buffer.ByteBufAllocator
    
    Overrides:
    
    compositeDirectBuffer in class io.netty.buffer.AbstractByteBufAllocator
  - newHeapBuffer
```
protected io.netty.buffer.ByteBuf newHeapBuffer(int initialCapacity,
                                                int maxCapacity)
```
    Specified by:
    
    newHeapBuffer in class io.netty.buffer.AbstractByteBufAllocator
  - newDirectBuffer
```
protected io.netty.buffer.ByteBuf newDirectBuffer(int initialCapacity,
                                                  int maxCapacity)
```
    Specified by:
    
    newDirectBuffer in class io.netty.buffer.AbstractByteBufAllocator
  - isDirectBufferPooled
```
public boolean isDirectBufferPooled()
```
  - compositeHeapBuffer
```
public io.netty.buffer.CompositeByteBuf compositeHeapBuffer()
```
    Specified by:
    
    compositeHeapBuffer in interface io.netty.buffer.ByteBufAllocator
    
    Overrides:
    
    compositeHeapBuffer in class io.netty.buffer.AbstractByteBufAllocator
  - compositeHeapBuffer
```
public io.netty.buffer.CompositeByteBuf compositeHeapBuffer(int maxNumComponents)
```
    Specified by:
    
    compositeHeapBuffer in interface io.netty.buffer.ByteBufAllocator
    
    Overrides:
    
    compositeHeapBuffer in class io.netty.buffer.AbstractByteBufAllocator

Class DrillByteBufAllocator

Field Summary

Fields inherited from interface io.netty.buffer.ByteBufAllocator

Constructor Summary

Method Summary

Methods inherited from class io.netty.buffer.AbstractByteBufAllocator

Methods inherited from class java.lang.Object

Constructor Detail

DrillByteBufAllocator

Method Detail

buffer

buffer

buffer

ioBuffer

ioBuffer

ioBuffer

directBuffer

directBuffer

directBuffer

compositeBuffer

compositeBuffer

compositeDirectBuffer

compositeDirectBuffer

newHeapBuffer

newDirectBuffer

isDirectBufferPooled

compositeHeapBuffer

compositeHeapBuffer