@NonNls
public static final String ELEMENT_CONTENT_TYPE = "contentType";
@Inject
public FileTypeSerializer( @NotNull ExtensionSerializer extensionSerializer ) {
super( "fileType", "http://www.cedarsoft.com/file/type", new VersionRange( new Version( 1, 0, 0 ), new Version( 1, 0, 1 ) ) );
add( extensionSerializer ).responsibleFor( Extension.class )
.map( 1, 0, 0 ).to( 1, 0, 1 ).toDelegateVersion( 1, 0, 0 )
;