OutputBuffer (Apache Tomcat 8.5.89 API Documentation)

All Known Subinterfaces:

HttpOutputBuffer, OutputFilter

All Known Implementing Classes:

AjpProcessor.SocketOutputBuffer, ChunkedOutputFilter, GzipOutputFilter, Http11OutputBuffer, Http11OutputBuffer.SocketOutputBuffer, Http2OutputBuffer, IdentityOutputFilter, VoidOutputFilter
```
public interface OutputBuffer
```
Output buffer. This class is used internally by the protocol implementation. All writes from higher level code should happen via Response.doWrite().

Author:

Remy Maucherat

Method Summary

All Methods Instance Methods Abstract Methods Deprecated Methods
Modifier and Type	Method	Description
`int`	`doWrite(java.nio.ByteBuffer chunk)`	Write the given data to the response.
`int`	`doWrite(ByteChunk chunk)`	Deprecated. Unused.
`long`	`getBytesWritten()`	Bytes written to the underlying socket.

- Method Detail
  - doWrite
```
@Deprecated
int doWrite(ByteChunk chunk)
     throws java.io.IOException
```
    Deprecated.
    Unused. Will be removed in Tomcat 9. Use doWrite(ByteBuffer)
    
    Write the given data to the response. The caller owns the chunks.
    
    Parameters:
    
    chunk - data to write
    
    Returns:
    
    The number of bytes written which may be less than available in the input chunk
    
    Throws:
    
    java.io.IOException - an underlying I/O error occurred
  - doWrite
```
int doWrite(java.nio.ByteBuffer chunk)
     throws java.io.IOException
```
    Write the given data to the response. The caller owns the chunks.
    
    Parameters:
    
    chunk - data to write
    
    Returns:
    
    The number of bytes written which may be less than available in the input chunk
    
    Throws:
    
    java.io.IOException - an underlying I/O error occurred
  - getBytesWritten
```
long getBytesWritten()
```
    Bytes written to the underlying socket. This includes the effects of chunking, compression, etc.
    
    Returns:
    
    Bytes written for the current request