<s>
Apache	B-Application
Pivot	I-Application
is	O
an	O
open-source	B-Application
platform	I-Application
for	O
building	O
rich	B-Application
web	I-Application
applications	I-Application
in	O
Java	B-Language
or	O
any	O
JVM-compatible	O
language	O
.	O
</s>
<s>
It	O
is	O
released	O
under	O
the	O
Apache	B-Application
License	I-Application
version	O
2.0	O
.	O
</s>
<s>
WTK	O
or	O
widgets	O
toolkit	O
are	O
the	O
graphical	O
components	O
of	O
Apache	B-Application
Pivot	I-Application
.	O
</s>
<s>
There	O
are	O
more	O
widgets	O
than	O
in	O
other	O
Java	B-Language
GUI	O
libraries	O
like	O
JFC/Swing	O
,	O
SWT	B-Application
or	O
JavaFX	B-Application
.	O
</s>
<s>
In	O
Apache	B-Application
Pivot	I-Application
,	O
the	O
GUI	O
usually	O
is	O
designed	O
using	O
BXML	O
files	O
.	O
</s>
<s>
BXML	O
is	O
an	O
XML-based	O
markup	O
language	O
for	O
simplifying	O
the	O
construction	O
of	O
Java	B-Language
object	O
hierarchies	O
.	O
</s>
<s>
While	O
it	O
is	O
most	O
often	O
used	O
to	O
define	O
the	O
user	O
interface	O
of	O
an	O
Apache	B-Application
Pivot	I-Application
application	O
,	O
it	O
is	O
not	O
limited	O
to	O
user	O
interface	O
construction	O
,	O
and	O
can	O
actually	O
be	O
used	O
to	O
create	O
hierarchies	O
of	O
any	O
object	O
type	O
.	O
</s>
<s>
In	O
the	O
case	O
of	O
Apache	B-Application
Pivot	I-Application
the	O
designer	O
can	O
place	O
the	O
WTK-components	O
and	O
set	O
their	O
properties	O
without	O
writing	O
a	O
single	O
line	O
of	O
Java	B-Language
code	I-Language
.	O
</s>
<s>
Apache	B-Application
Pivot	I-Application
supports	O
all	O
JSR	B-Language
223	I-Language
scripting	O
languages	O
to	O
script	O
the	O
BXML	O
files	O
.	O
</s>
<s>
The	O
WTK	O
is	O
just	O
one	O
part	O
of	O
Pivot	O
,	O
but	O
it	O
is	O
a	O
complete	O
rich	B-Application
web	I-Application
application	I-Application
framework	O
.	O
</s>
<s>
Pivot	O
has	O
its	O
own	O
Collection	O
API	O
(	O
to	O
ease	O
synchronizing	O
the	O
contents	O
to	O
the	O
GUI	O
)	O
and	O
APIs	O
for	O
accessing	O
REST	O
web	O
services	O
and	O
parsing	O
RSS	O
,	O
JSON	B-General_Concept
and	O
XML	B-Protocol
.	O
</s>
