Contents | Package | Class | Tree | Deprecated | Index | Help | Java 1.2 Beta 3 | ||
PREV | NEXT | SHOW LISTS | HIDE LISTS |
java.lang.Object | +----java.net.URLStreamHandler
URLStreamHandler
is the common
superclass for all stream protocol handlers. A stream protocol
handler knows how to make a connection for a particular protocol
type, such as http
, ftp
, or
gopher
.
In most cases, an instance of a URLStreamHandler
subclass is not created directly by an application. Rather, the
first time a protocol name is encountered when constructing a
URL
, the appropriate stream protocol handler is
automatically loaded.
Method Summary | |
URLConnection | openConnection(URL u)
URL argument.
|
void | parseURL(URL u,
String spec,
int start,
int limit)
URL into a
URL object.
|
void | setURL(URL u,
String protocol,
String host,
int port,
String file,
String ref)
URL argument to the indicated values.
|
String | toExternalForm(URL u)
URL of a specific protocol to a
String .
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
protected abstract URLConnection openConnection(URL u) throws IOException
URL
argument.
This method should be overridden by a subclass.
u
- the URL that this connects to.
URLConnection
object for the URL
.protected void parseURL(URL u, String spec, int start, int limit)
URL
into a
URL
object.
If there is any inherited context, then it has already been
copied into the URL
argument.
The parseURL
method of URLStreamHandler
parses the string representation as if it were an
http
specification. Most URL protocol families have a
similar parsing. A stream protocol handler for a protocol that has
a different syntax must override this routine.
u
- the URL
to receive the result of parsing
the spec.
spec
- the String
representing the URL that
must be parsed.
start
- the character index at which to begin parsing. This is
just past the ':
' (if there is one) that
specifies the determination of the protocol name.
limit
- the character position to stop parsing at. This is the
end of the string or the position of the
"#
" character, if present. All information
after the sharp sign indicates an anchor.
protected String toExternalForm(URL u)
URL
of a specific protocol to a
String
.
u
- the URL.
URL
argument.protected void setURL(URL u, String protocol, String host, int port, String file, String ref)
URL
argument to the indicated values.
Only classes derived from URLStreamHandler are supposed to be able
to call the set method on a URL.
u
- the URL to modify.
protocol
- the protocol name.
host
- the remote host value for the URL.
port
- the port on the remote machine.
file
- the file.
ref
- the reference.
Contents | Package | Class | Tree | Deprecated | Index | Help | Java 1.2 Beta 3 | ||
PREV | NEXT | SHOW LISTS | HIDE LISTS |