org.hibernate.engine.jdbc

Class BlobProxy

java.lang.Object

org.hibernate.engine.jdbc.BlobProxy

All Implemented Interfaces:

java.lang.reflect.InvocationHandler

public class BlobProxy
extends java.lang.Object
implements java.lang.reflect.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.

Method Summary

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

Methods inherited from class java.lang.Object

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

Method Detail

invoke

public java.lang.Object invoke(java.lang.Object proxy,
                               java.lang.reflect.Method method,
                               java.lang.Object[] args)
                        throws java.lang.Throwable

Specified by:

invoke in interface java.lang.reflect.InvocationHandler

Throws:

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

java.lang.Throwable

generateProxy

public static java.sql.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 java.sql.Blob generateProxy(java.io.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.