org.apache.commons.httpclient
public class HttpVersion extends Object implements Comparable
HTTP version, as specified in RFC 2616.
HTTP uses a "<major>.<minor>" numbering scheme to indicate versions of the protocol. The protocol versioning policy is intended to allow the sender to indicate the format of a message and its capacity for understanding further HTTP communication, rather than the features obtained via that communication. No change is made to the version number for the addition of message components which do not affect communication behavior or which only add to extensible field values. The <minor> number is incremented when the changes made to the protocol add features which do not change the general message parsing algorithm, but which may add to the message semantics and imply additional capabilities of the sender. The <major> number is incremented when the format of a message within the protocol is changed. See RFC 2145 [36] for a fuller explanation.
The version of an HTTP message is indicated by an HTTP-Version field in the first line of the message.
HTTP-Version = "HTTP" "/" 1*DIGIT "." 1*DIGIT
Note that the major and minor numbers MUST be treated as separate integers and that each MAY be incremented higher than a single digit. Thus, HTTP/2.4 is a lower version than HTTP/2.13, which in turn is lower than HTTP/12.3. Leading zeros MUST be ignored by recipients and MUST NOT be sent.
Since: 3.0
Version: $Revision: 155418 $ $Date: 2005-02-26 08:01:52 -0500 (Sat, 26 Feb 2005) $
Field Summary | |
---|---|
static HttpVersion | HTTP_0_9 HTTP protocol version 0.9 |
static HttpVersion | HTTP_1_0 HTTP protocol version 1.0 |
static HttpVersion | HTTP_1_1 HTTP protocol version 1.1 |
Constructor Summary | |
---|---|
HttpVersion(int major, int minor)
Create an HTTP protocol version designator.
|
Method Summary | |
---|---|
int | compareTo(HttpVersion anotherVer)
Compares this HTTP protocol version with another one.
|
int | compareTo(Object o) |
boolean | equals(Object obj) |
boolean | equals(HttpVersion version)
Test if the HTTP protocol version is equal to the given number.
|
int | getMajor()
Returns the major version number of the HTTP protocol.
|
int | getMinor()
Returns the minor version number of the HTTP protocol.
|
boolean | greaterEquals(HttpVersion version)
Test if the HTTP protocol version is greater or equal to the given number.
|
int | hashCode() |
boolean | lessEquals(HttpVersion version)
Test if the HTTP protocol version is less or equal to the given number.
|
static HttpVersion | parse(String s)
Parses the textual representation of the given HTTP protocol version.
|
String | toString() |
Parameters: major the major version number of the HTTP protocol minor the minor version number of the HTTP protocol
Throws: IllegalArgumentException if either major or minor version number is negative
Parameters: anotherVer the version to be compared with.
Returns: a negative integer, zero, or a positive integer as this version is less than, equal to, or greater than the specified version.
See Also: java.lang.Comparable#compareTo(java.lang.Object)
See Also: java.lang.Object#equals(java.lang.Object)
Returns: true if HTTP protocol version is given to the given number, false otherwise.
Returns: the major version number.
Returns: the minor version number.
Returns: true if HTTP protocol version is greater or equal given to the given number, false otherwise.
See Also: java.lang.Object#hashCode()
Returns: true if HTTP protocol version is less or equal to given to the given number, false otherwise.
Returns: HTTP protocol version.
Throws: ProtocolException if the string is not a valid HTTP protocol version.
See Also: java.lang.Object#toString()