net.sourceforge.jtds.util.BlobBuffer.AsciiInputStream

All Implemented Interfaces:: Closeable, AutoCloseable

Enclosing class:: BlobBuffer

private class BlobBuffer.AsciiInputStream extends InputStream

An ASCII InputStream over the CLOB buffer.

This class interprets ASCII as anything which has a value below 0x80. This is more rigid than other drivers which allow any character below 0x100 to be converted to returned. The more relaxed coding is useful when dealing with most single byte character sets and if this behaviour is desired, comment out the line indicated in the read method.

Field Summary

Fields

Modifier and Type

Field

Description

private boolean

open

private int

readPtr
Constructor Summary

Constructors

Constructor

Description

AsciiInputStream(long pos)

Costructs an InputStream object over the BLOB buffer.
Method Summary

Modifier and Type

Method

Description

int

available()

Returns the number of bytes available to read.

void

close()

Closes the output stream.

protected void

finalize()

Ensures underlying BLOB file can be closed even if user does not close this stream.

int

read()

Read the next byte from the stream.

Methods inherited from class java.io.InputStream
mark, markSupported, nullInputStream, read, read, readAllBytes, readNBytes, readNBytes, reset, skip, skipNBytes, transferTo

Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details
- readPtr
  
  private int readPtr
- open
  
  private boolean open
Constructor Details
- AsciiInputStream
  
  public AsciiInputStream(long pos) throws IOException
  
  Costructs an InputStream object over the BLOB buffer.
  
  Parameters:
  
  pos - the starting position (from 0)
  
  Throws:
  
  IOException - if an I/O error occurs
Method Details
- finalize
  
  protected void finalize() throws Throwable
  
  Ensures underlying BLOB file can be closed even if user does not close this stream.
  
  Overrides:
  
  finalize in class Object
  
  Throws:
  
  Throwable
- available
  
  public int available() throws IOException
  
  Returns the number of bytes available to read.
  
  Overrides:
  
  available in class InputStream
  
  Throws:
  
  IOException - if an I/O error occurs
- read
  
  public int read() throws IOException
  
  Read the next byte from the stream.
  
  Specified by:
  
  read in class InputStream
  
  Returns:
  
  the next byte as an int or -1 if at EOF
  
  Throws:
  
  IOException - if an I/O error occurs
- close
  
  public void close() throws IOException
  
  Closes the output stream.
  
  Specified by:
  
  close in interface AutoCloseable
  
  Specified by:
  
  close in interface Closeable
  
  Overrides:
  
  close in class InputStream
  
  Throws:
  
  IOException - if an I/O error occurs

Class BlobBuffer.AsciiInputStream

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.io.InputStream

Methods inherited from class java.lang.Object

Field Details

readPtr

open

Constructor Details

AsciiInputStream

Method Details

finalize

available

read

close