Class UpdateSensitiveClobLocatorInputStream

java.lang.Object

java.io.InputStream

org.apache.derby.client.am.UpdateSensitiveLOBLocatorInputStream

org.apache.derby.client.am.UpdateSensitiveClobLocatorInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

class UpdateSensitiveClobLocatorInputStream
extends UpdateSensitiveLOBLocatorInputStream

This class extends from the UpdateSensitiveLOBLocatorInputStream and creates and returns an implementation of the Clob specific locator InputStream. It also over-rides the reCreateStream method which re-creates the underlying Clob locator stream whenever a update happens on the Clob object associated with this stream.

Field Summary

Fields

Modifier and Type	Field	Description
private ClientClob	clob

Fields inherited from class UpdateSensitiveLOBLocatorInputStream

con, currentPos, length

Constructor Summary

Constructors

Constructor	Description
UpdateSensitiveClobLocatorInputStream(ClientConnection con, ClientClob clob)	Creates an instance of the ClobLocatorInputStream wrapped in a BufferedInputStream and and calls the super class constructor with appropriate initializers.

Method Summary

Modifier and Type	Method	Description
protected InputStream	reCreateStream()	Re-creates the underlying Locator stream with the current position and the length values if specified.

Methods inherited from class UpdateSensitiveLOBLocatorInputStream

close, read, read

Methods inherited from class InputStream

available, mark, markSupported, nullInputStream, read, readAllBytes, readNBytes, readNBytes, reset, skip, skipNBytes, transferTo

Methods inherited from class Object

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

Field Details

clob

private ClientClob clob

Constructor Details

UpdateSensitiveClobLocatorInputStream

UpdateSensitiveClobLocatorInputStream(ClientConnection con,
 ClientClob clob)
                               throws SqlException

Creates an instance of the ClobLocatorInputStream wrapped in a BufferedInputStream and and calls the super class constructor with appropriate initializers.

Parameters:

con - connection to be used to read the Clob value from the server

clob - Clob object that contains locator for the Clob value on the server.

Throws:

SqlException - If any exception occurs during stream creation.

Method Details

reCreateStream

protected InputStream reCreateStream()
                              throws SqlException

Re-creates the underlying Locator stream with the current position and the length values if specified.

Specified by:

reCreateStream in class UpdateSensitiveLOBLocatorInputStream

Throws:

SqlException