<s>
Apache	B-Language
Axis2	I-Language
is	O
a	O
web	O
service	O
engine	O
.	O
</s>
<s>
It	O
is	O
a	O
redesign	O
and	O
re-write	O
of	O
the	O
widely	O
used	O
Apache	O
Axis	O
SOAP	B-Application
stack	O
.	O
</s>
<s>
Implementations	O
of	O
Axis2	B-Language
are	O
available	O
in	O
Java	B-Language
and	O
C	B-Language
.	O
</s>
<s>
Axis2	B-Language
provides	O
the	O
capability	O
to	O
add	O
Web	O
services	O
interfaces	O
to	O
Web	B-Application
applications	I-Application
.	O
</s>
<s>
It	O
can	O
also	O
function	O
as	O
a	O
standalone	O
application	B-Application
server	I-Application
.	O
</s>
<s>
A	O
new	O
architecture	O
for	O
Axis2	B-Language
was	O
introduced	O
during	O
the	O
August	O
2004	O
Axis2	B-Language
Summit	O
in	O
Colombo	O
,	O
Sri	O
Lanka	O
.	O
</s>
<s>
Apache	B-Language
Axis2	I-Language
supports	O
SOAP	B-Application
1.1	O
and	O
SOAP	B-Application
1.2	O
,	O
and	O
it	O
has	O
integrated	O
support	O
for	O
the	O
REST	B-Protocol
style	O
of	O
Web	O
services	O
.	O
</s>
<s>
The	O
same	O
business-logic	O
implementation	O
can	O
offer	O
both	O
a	O
WS-*	O
style	O
interface	O
as	O
well	O
as	O
a	O
REST/POX	O
style	O
interface	O
simultaneously	O
.	O
</s>
<s>
Axis2/Java	O
has	O
support	O
for	O
Spring	B-Application
Framework	I-Application
.	O
</s>
<s>
Axis2/C	O
is	O
a	O
high-performance	O
Web	O
services	O
implementation	O
that	O
has	O
been	O
implemented	O
with	O
portability	O
and	O
ability	O
to	O
be	O
embedded	O
or	O
hosted	O
in	O
Apache	O
Httpd	O
,	O
Microsoft	O
IIS	O
or	O
Axis	O
Http	O
Server	O
.	O
</s>
<s>
Axis2	B-Language
came	O
with	O
new	O
features	O
,	O
enhancements	O
and	O
industry	O
specification	O
implementations	O
.	O
</s>
<s>
Apache	B-Language
Axis2	I-Language
includes	O
support	O
for	O
following	O
standards	O
:	O
</s>
<s>
Speed	O
Axis2	B-Language
uses	O
its	O
own	O
object	O
model	O
and	O
StAX	B-Language
(	O
Streaming	B-Language
API	I-Language
for	I-Language
XML	I-Language
)	O
.	O
</s>
<s>
Low	O
memory	O
foot	O
print	O
Axis2	B-Language
was	O
designed	O
to	O
consume	O
a	O
low	O
amount	O
of	O
memory	O
.	O
</s>
<s>
AXIOM	O
Axis2	B-Language
comes	O
with	O
its	O
own	O
light-weight	O
object	O
model	O
,	O
</s>
<s>
Hot	O
Deployment	O
Axis2	B-Language
can	O
deploy	O
Web	O
services	O
and	O
handlers	O
while	O
the	O
system	O
is	O
running	O
.	O
</s>
<s>
Asynchronous	O
Web	O
services	O
Axis2	B-Language
supports	O
asynchronous	O
Web	O
services	O
and	O
asynchronous	O
Web	O
services	O
invocation	O
using	O
non-blocking	O
clients	O
and	O
transports	O
.	O
</s>
<s>
MEP	O
Support	O
Axis2	B-Language
supports	O
Message	O
Exchange	O
Patterns	O
(	O
MEPs	O
)	O
with	O
support	O
for	O
basic	O
MEPs	O
defined	O
in	O
WSDL	O
2.0	O
.	O
</s>
<s>
Flexibility	O
The	O
Axis2	B-Language
architecture	O
allows	O
the	O
developer	O
to	O
insert	O
extensions	O
into	O
the	O
engine	O
for	O
custom	O
header	O
processing	O
,	O
system	O
management	O
,	O
etc	O
.	O
</s>
<s>
Stability	O
Axis2	B-Language
defines	O
a	O
set	O
of	O
published	O
interfaces	O
.	O
</s>
<s>
Transport	O
Framework	O
Axis2	B-Language
has	O
a	O
simple	O
abstraction	O
for	O
integrating	O
and	O
using	O
Transports	O
(	O
i.e.	O
,	O
senders	O
and	O
listeners	O
for	O
SOAP	B-Application
over	O
protocols	O
such	O
as	O
SMTP	O
,	O
FTP	O
,	O
message-oriented	B-Application
middleware	I-Application
,	O
etc	O
.	O
</s>
<s>
WSDL	O
support	O
Axis2	B-Language
supports	O
the	O
Web	O
Services	O
Description	O
Language	O
,	O
version	O
1.1	O
and	O
2.0	O
,	O
which	O
allows	O
developers	O
to	O
build	O
stubs	O
to	O
access	O
remote	O
services	O
,	O
and	O
also	O
to	O
automatically	O
export	O
machine-readable	O
descriptions	O
of	O
deployed	O
services	O
from	O
Axis2	B-Language
.	O
</s>
<s>
Add-ons	O
Web	O
services	O
specifications	O
have	O
been	O
incorporated	O
including	O
for	O
security	O
(	O
Apache	B-Application
Rampart	I-Application
)	O
,	O
Sandesha	O
for	O
messaging	O
,	O
Kandula	O
which	O
is	O
an	O
encapsulation	O
of	O
WS-Coordination	O
,	O
WS-AtomicTransaction	O
and	O
WS-BusinessActivity	O
.	O
</s>
<s>
Axis2	B-Language
modules	O
provide	O
QoS	O
features	O
like	O
security	O
,	O
reliable	O
messaging	O
,	O
etc	O
.	O
</s>
