Package io.netty.buffer

Class DefaultByteBufHolder

java.lang.Object

io.netty.buffer.DefaultByteBufHolder

All Implemented Interfaces:

ByteBufHolder, io.netty.util.ReferenceCounted

public class DefaultByteBufHolder
extends Object
implements ByteBufHolder

Default implementation of a ByteBufHolder that holds it's data in a ByteBuf.

Constructor Summary

Constructors

Constructor	Description
DefaultByteBufHolder(ByteBuf data)

Method Summary

Modifier and Type	Method	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()
boolean	release()
boolean	release(int decrement)
ByteBufHolder	replace(ByteBuf content)	Returns a new ByteBufHolder which contains the specified content.
ByteBufHolder	retain()
ByteBufHolder	retain(int increment)
ByteBufHolder	retainedDuplicate()	Duplicates this ByteBufHolder.
String	toString()
ByteBufHolder	touch()
ByteBufHolder	touch(Object hint)

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()

Specified by:

refCnt in interface io.netty.util.ReferenceCounted

retain

public ByteBufHolder retain()

Specified by:

retain in interface ByteBufHolder

Specified by:

retain in interface io.netty.util.ReferenceCounted

retain

public ByteBufHolder retain(int increment)

Specified by:

retain in interface ByteBufHolder

Specified by:

retain in interface io.netty.util.ReferenceCounted

touch

public ByteBufHolder touch()

Specified by:

touch in interface ByteBufHolder

Specified by:

touch in interface io.netty.util.ReferenceCounted

touch

public ByteBufHolder touch(Object hint)

Specified by:

touch in interface ByteBufHolder

Specified by:

touch in interface io.netty.util.ReferenceCounted

release

public boolean release()

Specified by:

release in interface io.netty.util.ReferenceCounted

release

public boolean release(int decrement)

Specified by:

release in interface io.netty.util.ReferenceCounted

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