Class HttpVersion
- All Implemented Interfaces:
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: 480424 $ $Date: 2006-11-29 06:56:49 +0100 (Wed, 29 Nov 2006) $
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Field Summary
Modifier and TypeFieldDescriptionstatic final HttpVersion
HTTP protocol version 0.9static final HttpVersion
HTTP protocol version 1.0static final HttpVersion
HTTP protocol version 1.1 -
Constructor Summary
ConstructorDescriptionHttpVersion
(int major, int minor) Create an HTTP protocol version designator. -
Method Summary
Modifier and TypeMethodDescriptionint
compareTo
(HttpVersion anotherVer) Compares this HTTP protocol version with another one.int
boolean
equals
(HttpVersion version) Test if the HTTP protocol version is equal to the given number.boolean
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
Parses the textual representation of the given HTTP protocol version.toString()
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Field Details
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HTTP_0_9
HTTP protocol version 0.9 -
HTTP_1_0
HTTP protocol version 1.0 -
HTTP_1_1
HTTP protocol version 1.1
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Constructor Details
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HttpVersion
public HttpVersion(int major, int minor) Create an HTTP protocol version designator.- Parameters:
major
- the major version number of the HTTP protocolminor
- the minor version number of the HTTP protocol- Throws:
IllegalArgumentException
- if either major or minor version number is negative
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Method Details
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getMajor
public int getMajor()Returns the major version number of the HTTP protocol.- Returns:
- the major version number.
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getMinor
public int getMinor()Returns the minor version number of the HTTP protocol.- Returns:
- the minor version number.
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hashCode
public int hashCode() -
equals
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compareTo
Compares this HTTP protocol version with another one.- 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.
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compareTo
- Specified by:
compareTo
in interfaceComparable
- See Also:
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equals
Test if the HTTP protocol version is equal to the given number.- Returns:
- true if HTTP protocol version is given to the given number, false otherwise.
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greaterEquals
Test if the HTTP protocol version is greater or equal to the given number.- Returns:
- true if HTTP protocol version is greater or equal given to the given number, false otherwise.
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lessEquals
Test if the HTTP protocol version is less or equal to the given number.- Returns:
- true if HTTP protocol version is less or equal to given to the given number, false otherwise.
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toString
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parse
Parses the textual representation of the given HTTP protocol version.- Returns:
- HTTP protocol version.
- Throws:
ProtocolException
- if the string is not a valid HTTP protocol version.
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