Clean up expired docs. (#9756)

Motivation:
Since the `extractFrame` has used `retainedSlice` to avoid memory copy, we should clean this doc that was expired.

Result:
Better doc.
This commit is contained in:
时无两丶 2019-11-06 16:43:25 +08:00 committed by Norman Maurer
parent 86a533576f
commit d13ac5290a

View File

@ -494,14 +494,6 @@ public class LengthFieldBasedFrameDecoder extends ByteToMessageDecoder {
/**
* Extract the sub-region of the specified buffer.
* <p>
* If you are sure that the frame and its content are not accessed after
* the current {@link #decode(ChannelHandlerContext, ByteBuf)}
* call returns, you can even avoid memory copy by returning the sliced
* sub-region (i.e. <tt>return buffer.slice(index, length)</tt>).
* It's often useful when you convert the extracted frame into an object.
* Refer to the source code of {@link ObjectDecoder} to see how this method
* is overridden to avoid memory copy.
*/
protected ByteBuf extractFrame(ChannelHandlerContext ctx, ByteBuf buffer, int index, int length) {
return buffer.retainedSlice(index, length);