Networking Enhancements for JavaTM 2 SDK, Standard Edition, v 1.3
New Classes/Interfaces
java.net.DatagramSocketImplFactory
New interface java.net.DatagramSocketImplFactory
is used by DatagramSocket to create actual socket
implementations. This addition makes DatagramSocket
consistent with the other socket types, by allowing the user
to set the DatagramSocketImplFactory through a public API.
Modified Classes/Interfaces
java.net.HttpURLConnection
The following constants were added to java.net.HttpURLConnection
to make the HTTP status codes match the HTTP 1.1 RFC:
public static final int HTTP_INTERNAL_ERROR = 500;
public static final int HTTP_NOT_IMPLEMENTED = 501;
Two new methods were added to support following HTTP
redirects (requests with response code 3xx) on a
per-instance basis. The default is to use the class
setting.
java.net.URL,java.net.URLConnection, and java.net.ContentHandler
Several access methods have been added to make java.net.URL
consistent with the fields of a URL as described in the
latest IETF specification, RFC2396.
An overloaded getContent() method was added to java.net.URL,
java.net.URLConnection, and java.net.ContentHandler to allow
requesting that the returned content object support one of an
ordered list of Java types. This allows mapping of MIME types
to more than one possible Java type, and improves system
flexibility.
varied implementation, see javadocs for each class.
These additions expose the concept of a handler's default
port number and allow URL handlers to override aspects of URL
equality and hashcode comparisons in URL protocol-specific
ways. These changes enable cleaner access to the parsed
component parts of a URL and enhance the ability of the
various URL handlers to share common parsing code.
There is a new open mode for java.util.zip.ZipFile and
java.util.jar.JarFile, which automatically deletes temporary
(cached) files associated with each JarURLConnection when the
Zip/Jar file opened in this mode is closed and the process
exits. This is useful when downloading temporary jar files
onto a local disk.
Miscellaneous Information
Added HTTP 1.1 client-side support and enhancements, such
as http keepalives.
The SDK now does a better job of URL parsing by following
RFC 2396 much more closely.