org.apache.derby.client.am

Class UpdateSensitiveClobLocatorInputStream

java.lang.Object

java.io.InputStream

org.apache.derby.client.am.UpdateSensitiveLOBLocatorInputStream

org.apache.derby.client.am.UpdateSensitiveClobLocatorInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.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 and Description
private ClientClob	clob

Fields inherited from class org.apache.derby.client.am.UpdateSensitiveLOBLocatorInputStream

con, currentPos, length

Constructor Summary

Constructors

Constructor and 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 and Description
protected java.io.InputStream	reCreateStream() Re-creates the underlying Locator stream with the current position and the length values if specified.

Methods inherited from class org.apache.derby.client.am.UpdateSensitiveLOBLocatorInputStream

close, read, read

Methods inherited from class java.io.InputStream

available, mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

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

Field Detail

clob

private ClientClob clob

Constructor Detail

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 Detail

reCreateStream

protected java.io.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