UpdateSensitiveBlobLocatorInputStream (Apache Derby V10.14 Internals)

java.lang.Object
- java.io.InputStream
- - org.apache.derby.client.am.UpdateSensitiveLOBLocatorInputStream
  - - org.apache.derby.client.am.UpdateSensitiveBlobLocatorInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable
```
class UpdateSensitiveBlobLocatorInputStream
extends UpdateSensitiveLOBLocatorInputStream
```
This class extends from the UpdateSensitiveLOBLocatorInputStream and creates and returns an implementation of the Blob specific locator InputStream. It also over-rides the reCreateStream method which re-creates the underlying Blob locator stream whenever a update happens on the Blob object associated with this stream.

Field Summary

Fields
Modifier and Type Field Description

private ClientBlob blob
- Fields inherited from class org.apache.derby.client.am.UpdateSensitiveLOBLocatorInputStream
  con, currentPos, length

Fields
Modifier and Type	Field	Description
`private ClientBlob`	`blob`

Constructor Summary

Constructors
Constructor	Description
`UpdateSensitiveBlobLocatorInputStream(ClientConnection con, ClientBlob blob)`	Creates an instance of the BlobLocatorInputStream and and calls the super class constructors with appropriate initializers.
`UpdateSensitiveBlobLocatorInputStream(ClientConnection con, ClientBlob blob, long position, long length)`	Creates an instance of the BlobLocatorInputStream.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	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 java.io.InputStream
available, mark, markSupported, read, readAllBytes, readNBytes, reset, skip, transferTo

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

Methods inherited from class org.apache.derby.client.am.UpdateSensitiveLOBLocatorInputStream
close, read, read

- Field Detail
  - blob
```
private ClientBlob blob
```
- Constructor Detail
  - UpdateSensitiveBlobLocatorInputStream
```
UpdateSensitiveBlobLocatorInputStream(ClientConnection con,
                                      ClientBlob blob)
                               throws SqlException
```
    Creates an instance of the BlobLocatorInputStream and and calls the super class constructors with appropriate initializers.
    
    Parameters:
    
    con - connection to be used to read the Blob value from the server
    
    blob - Blob object that contains locator for the Blob value on the server.
    
    Throws:
    
    SqlException - If any exception occurs during stream creation.
  - UpdateSensitiveBlobLocatorInputStream
```
UpdateSensitiveBlobLocatorInputStream(ClientConnection con,
                                      ClientBlob blob,
                                      long position,
                                      long length)
                               throws SqlException
```
    Creates an instance of the BlobLocatorInputStream.
    
    Parameters:
    
    con - connection to be used to read the Blob value from the server
    
    blob - Blob object that contains locator for the Blob value on the server.
    
    position - the position in the Blob of the first byte to read.
    
    length - the maximum number of bytes to read from the Blob.
    
    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 - If any exception occurs while re-creating the underlying streams.

Class UpdateSensitiveBlobLocatorInputStream

Field Summary

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

Constructor Summary

Method Summary

Methods inherited from class java.io.InputStream

Methods inherited from class java.lang.Object

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

Field Detail

blob

Constructor Detail

UpdateSensitiveBlobLocatorInputStream

UpdateSensitiveBlobLocatorInputStream

Method Detail

reCreateStream