Package com.nuodb.jdbc

Class ChunkedInputStream

java.lang.Object

java.io.InputStream

com.nuodb.jdbc.ChunkedInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class ChunkedInputStream
extends InputStream

ChunkedInputStream is a subclass of InputStream that attempts to refill itself when its internal buffer is exhausted. This allows the object that is being streamed to appear contiguous to the client, but have a smaller memory footprint. For example, this allows the server to stream blobs/clobs instead of sending the entire object, saving memory for the JDBC client.

Constructor Summary

Constructors

Constructor	Description
ChunkedInputStream(ValueStream stream, boolean ascii)

Method Summary

Modifier and Type	Method	Description
int	available()
void	close()
void	mark(int readLimit)
boolean	markSupported()
int	read()	The read functions read from the internal buffer, refilling when necessary.
int	read(byte[] buf)
int	read(byte[] buf, int off, int len)
void	reset()
long	skip(long n)

Methods inherited from class java.io.InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, transferTo

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ChunkedInputStream

public ChunkedInputStream(ValueStream stream,
                          boolean ascii)

Method Detail

markSupported

public boolean markSupported()

Overrides:

markSupported in class InputStream

available

public int available()
              throws IOException

Overrides:

available in class InputStream

Throws:

IOException

mark

public void mark(int readLimit)

Overrides:

mark in class InputStream

reset

public void reset()
           throws IOException

Overrides:

reset in class InputStream

Throws:

IOException

read

public int read()
         throws IOException

The read functions read from the internal buffer, refilling when necessary. Refilling should be invisible to the client.

Specified by:

read in class InputStream

Throws:

IOException

read

public int read(byte[] buf)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

read

public int read(byte[] buf,
                int off,
                int len)
         throws IOException

Overrides:

read in class InputStream

Throws:

IOException

skip

public long skip(long n)
          throws IOException

Overrides:

skip in class InputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class InputStream

Throws:

IOException