@Embeddablepublic class URIEntity { private URI fURI; /** * Provided for deserialization. */ protected URIEntity() { // As per javadoc } public URIEntity(URI uri) { fURI = uri; } @Basic public String getUriAsString() { return fURI.toString(); } public void setUriAsString(String uriAsString) { try { fURI = new URI(uriAsString); } catch (URISyntaxException e) { // Should never happen throw new IllegalArgumentException("uriAsString is not a uri"); } } @Transient public URI getURI() { return fURI; } public void setURI(URI uri) { fURI = uri; }