org.hibernate.engine.jdbc

Class BlobProxy

java.lang.Object

org.hibernate.engine.jdbc.BlobProxy

All Implemented Interfaces:

InvocationHandler

public class BlobProxy
extends Object
implements InvocationHandler

Manages aspects of proxying Blob references for non-contextual creation, including proxy creation and handling proxy invocations. We use proxies here solely to avoid JDBC version incompatibilities.

Author:

Gavin King, Steve Ebersole, Gail Badner

Method Summary

Modifier and Type	Method and Description
static Blob	generateProxy(byte[] bytes) Generates a BlobImpl proxy using byte data.
static Blob	generateProxy(InputStream stream, long length) Generates a BlobImpl proxy using a given number of bytes from an InputStream.
Object	invoke(Object proxy, Method method, Object[] args)

Methods inherited from class java.lang.Object

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

Method Detail

invoke

public Object invoke(Object proxy,
                     Method method,
                     Object[] args)
              throws Throwable

Specified by:

invoke in interface InvocationHandler

Throws:

UnsupportedOperationException - if any methods other than Blob.length(), BlobImplementer.getUnderlyingStream(), Blob.getBinaryStream(), Blob.getBytes(long, int), Blob.free(), or toString/equals/hashCode are invoked.

Throwable

generateProxy

public static Blob generateProxy(byte[] bytes)

Generates a BlobImpl proxy using byte data.

Parameters:

bytes - The data to be created as a Blob.

Returns:

The generated proxy.

generateProxy

public static Blob generateProxy(InputStream stream,
                                 long length)

Generates a BlobImpl proxy using a given number of bytes from an InputStream.

Parameters:

stream - The input stream of bytes to be created as a Blob.

length - The number of bytes from stream to be written to the Blob.

Returns:

The generated proxy.