public final class Base64Variants extends Object
Modifier and Type | Field and Description |
---|---|
static Base64Variant |
MIME
This variant is what most people would think of "the standard"
Base64 encoding.
|
static Base64Variant |
MIME_NO_LINEFEEDS
Slightly non-standard modification of
MIME which does not
use linefeeds (max line length set to infinite). |
static Base64Variant |
MODIFIED_FOR_URL
This non-standard variant is usually used when encoded data needs to be
passed via URLs (such as part of GET request).
|
static Base64Variant |
PEM
This variant is the one that predates
MIME : it is otherwise
identical, except that it mandates shorter line length. |
Constructor and Description |
---|
Base64Variants() |
Modifier and Type | Method and Description |
---|---|
static Base64Variant |
getDefaultVariant()
Method used to get the default variant ("MIME_NO_LINEFEEDS") for cases
where caller does not explicitly specify the variant.
|
public static final Base64Variant MIME
See wikipedia Base64 entry for details.
Note that although this can be thought of as the standard variant, it is not the default for Jackson: no-linefeeds alternative is because of JSON requirement of escaping all linefeeds.
public static final Base64Variant MIME_NO_LINEFEEDS
MIME
which does not
use linefeeds (max line length set to infinite). Useful when linefeeds
wouldn't work well (possibly in attributes), or for minor space savings
(save 1 linefeed per 76 data chars, ie. ~1.4% savings).public static final Base64Variant PEM
MIME
: it is otherwise
identical, except that it mandates shorter line length.public static final Base64Variant MODIFIED_FOR_URL
MIME
variant in multiple ways.
First, no padding is used: this also means that it generally can not
be written in multiple separate but adjacent chunks (which would not
be the usual use case in any case). Also, no linefeeds are used (max
line length set to infinite). And finally, two characters (plus and
slash) that would need quoting in URLs are replaced with more
optimal alternatives (hyphen and underscore, respectively).public static Base64Variant getDefaultVariant()