org.apache.juneau.http

Class Age

java.lang.Object

org.apache.juneau.http.HeaderInteger

org.apache.juneau.http.Age

@Header(value="Age")
public final class Age
extends HeaderInteger

Represents a parsed Age HTTP response header.

The age the object has been in a proxy cache in seconds.

Example

Age: 12

RFC2616 Specification

The Age response-header field conveys the sender's estimate of the amount of time since the response (or its revalidation) was generated at the origin server. A cached response is "fresh" if its age does not exceed its freshness lifetime. Age values are calculated as specified in section 13.2.3.

Age = "Age" ":" age-value age-value = delta-seconds

Age values are non-negative decimal integers, representing time in seconds.

If a cache receives a value larger than the largest positive integer it can represent, or if any of its age calculations overflows, it MUST transmit an Age header with a value of 2147483648 (2^31).

An HTTP/1.1 server that includes a cache MUST include an Age header field in every response generated from its own cache.

Caches SHOULD use an arithmetic type of at least 31 bits of range.

• Hypertext Transfer Protocol -- HTTP/1.1

Constructor Summary

Constructors

Constructor and Description
Age(Integer value) Constructor.

Method Summary

Modifier and Type	Method and Description
static Age	forString(String value) Returns a parsed Age header.

Methods inherited from class org.apache.juneau.http.HeaderInteger

asInt, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Age

public Age(Integer value)

Constructor.

Parameters:

value - The value for this header.

Method Detail

forString

public static Age forString(String value)

Returns a parsed Age header.

Parameters:

value - The Age header string.

Returns:

The parsed Age header, or null if the string was null.