How to prevent SVG Image from caching

[Amita Rathore]

I am using data scheme to insert an image. like this :

<fo:instream-foreign-object>
   <svg:svg xmlns:svg="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="542px" height="506px">
   <svg:image width="64" height="48" xlink:href="" />
   </svg:svg>
</fo:instream-foreign-object>

The image gets cached and the same image is displayed even after I  change the value for xlink:href.

I am resetting the cache also using :org.apache.fop.image.FopImageFactory.resetCache();
       
What should be done to avoid cachig of images. Thanks.