DefaultByteBufHolder (Netty API Reference (4.1.116.Final))

java.lang.Object
- io.netty.buffer.DefaultByteBufHolder

All Implemented Interfaces:

ByteBufHolder, ReferenceCounted

Direct Known Subclasses:

DefaultBulkStringRedisContent, DefaultHttp2GoAwayFrame, DefaultHttp2UnknownFrame, DefaultSmtpContent, DefaultSpdyUnknownFrame, DefaultStompContentSubframe, FullBulkStringRedisMessage, HAProxyTLV, SctpMessage, UdtMessage, WebSocketFrame
```
public class DefaultByteBufHolder
extends Object
implements ByteBufHolder
```
Default implementation of a ByteBufHolder that holds it's data in a ByteBuf.

Constructor Summary

Constructors
Constructor and Description

DefaultByteBufHolder(ByteBuf data)

Constructors
Constructor and Description
`DefaultByteBufHolder(ByteBuf data)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`ByteBuf`	`content()` Return the data which is held by this `ByteBufHolder`.
`protected String`	`contentToString()` Return `ByteBuf.toString()` without checking the reference count first.
`ByteBufHolder`	`copy()` Creates a deep copy of this `ByteBufHolder`.
`ByteBufHolder`	`duplicate()` Duplicates this `ByteBufHolder`.
`boolean`	`equals(Object o)` This implementation of the `equals` operation is restricted to work only with instances of the same class.
`int`	`hashCode()`
`int`	`refCnt()` Returns the reference count of this object.
`boolean`	`release()` Decreases the reference count by `1` and deallocates this object if the reference count reaches at `0`.
`boolean`	`release(int decrement)` Decreases the reference count by the specified `decrement` and deallocates this object if the reference count reaches at `0`.
`ByteBufHolder`	`replace(ByteBuf content)` Returns a new `ByteBufHolder` which contains the specified `content`.
`ByteBufHolder`	`retain()` Increases the reference count by `1`.
`ByteBufHolder`	`retain(int increment)` Increases the reference count by the specified `increment`.
`ByteBufHolder`	`retainedDuplicate()` Duplicates this `ByteBufHolder`.
`String`	`toString()`
`ByteBufHolder`	`touch()` Records the current access location of this object for debugging purposes.
`ByteBufHolder`	`touch(Object hint)` Records the current access location of this object with an additional arbitrary information for debugging purposes.

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

- Constructor Detail
  - DefaultByteBufHolder
```
public DefaultByteBufHolder(ByteBuf data)
```
- Method Detail
  - content
```
public ByteBuf content()
```
    Description copied from interface: ByteBufHolder
    
    Return the data which is held by this ByteBufHolder.
    
    Specified by:
    
    content in interface ByteBufHolder
  - copy
```
public ByteBufHolder copy()
```
    Creates a deep copy of this ByteBufHolder.
    This method calls replace(content().copy()) by default.
    
    Specified by:
    
    copy in interface ByteBufHolder
  - duplicate
```
public ByteBufHolder duplicate()
```
    Duplicates this ByteBufHolder. Be aware that this will not automatically call ByteBufHolder.retain().
    This method calls replace(content().duplicate()) by default.
    
    Specified by:
    
    duplicate in interface ByteBufHolder
  - retainedDuplicate
```
public ByteBufHolder retainedDuplicate()
```
    Duplicates this ByteBufHolder. This method returns a retained duplicate unlike ByteBufHolder.duplicate().
    This method calls replace(content().retainedDuplicate()) by default.
    
    Specified by:
    
    retainedDuplicate in interface ByteBufHolder
    
    See Also:
    
    ByteBuf.retainedDuplicate()
  - replace
```
public ByteBufHolder replace(ByteBuf content)
```
    Returns a new ByteBufHolder which contains the specified content.
    Override this method to return a new instance of this object whose content is set to the specified content. The default implementation of copy(), duplicate() and retainedDuplicate() invokes this method to create a copy.
    
    Specified by:
    
    replace in interface ByteBufHolder
  - refCnt
```
public int refCnt()
```
    Description copied from interface: ReferenceCounted
    
    Returns the reference count of this object. If 0, it means this object has been deallocated.
    
    Specified by:
    
    refCnt in interface ReferenceCounted
  - retain
```
public ByteBufHolder retain()
```
    Description copied from interface: ReferenceCounted
    
    Increases the reference count by 1.
    
    Specified by:
    
    retain in interface ByteBufHolder
    
    Specified by:
    
    retain in interface ReferenceCounted
  - retain
```
public ByteBufHolder retain(int increment)
```
    Description copied from interface: ReferenceCounted
    
    Increases the reference count by the specified increment.
    
    Specified by:
    
    retain in interface ByteBufHolder
    
    Specified by:
    
    retain in interface ReferenceCounted
  - touch
```
public ByteBufHolder touch()
```
    Description copied from interface: ReferenceCounted
    
    Records the current access location of this object for debugging purposes. If this object is determined to be leaked, the information recorded by this operation will be provided to you via ResourceLeakDetector. This method is a shortcut to touch(null).
    
    Specified by:
    
    touch in interface ByteBufHolder
    
    Specified by:
    
    touch in interface ReferenceCounted
  - touch
```
public ByteBufHolder touch(Object hint)
```
    Description copied from interface: ReferenceCounted
    
    Records the current access location of this object with an additional arbitrary information for debugging purposes. If this object is determined to be leaked, the information recorded by this operation will be provided to you via ResourceLeakDetector.
    
    Specified by:
    
    touch in interface ByteBufHolder
    
    Specified by:
    
    touch in interface ReferenceCounted
  - release
```
public boolean release()
```
    Description copied from interface: ReferenceCounted
    
    Decreases the reference count by 1 and deallocates this object if the reference count reaches at 0.
    
    Specified by:
    
    release in interface ReferenceCounted
    
    Returns:
    
    true if and only if the reference count became 0 and this object has been deallocated
  - release
```
public boolean release(int decrement)
```
    Description copied from interface: ReferenceCounted
    
    Decreases the reference count by the specified decrement and deallocates this object if the reference count reaches at 0.
    
    Specified by:
    
    release in interface ReferenceCounted
    
    Returns:
    
    true if and only if the reference count became 0 and this object has been deallocated
  - contentToString
```
protected final String contentToString()
```
    Return ByteBuf.toString() without checking the reference count first. This is useful to implement toString().
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - equals
```
public boolean equals(Object o)
```
    This implementation of the equals operation is restricted to work only with instances of the same class. The reason for that is that Netty library already has a number of classes that extend DefaultByteBufHolder and override equals method with an additional comparison logic and we need the symmetric property of the equals operation to be preserved.
    
    Overrides:
    
    equals in class Object
    
    Parameters:
    
    o - the reference object with which to compare.
    
    Returns:
    
    true if this object is the same as the obj argument; false otherwise.
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object

Class DefaultByteBufHolder

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

DefaultByteBufHolder

Method Detail

content

copy

duplicate

retainedDuplicate

replace

refCnt

retain

retain

touch

touch

release

release

contentToString

toString

equals

hashCode