com.bigdata.search

Class LanguageRange

java.lang.Object

com.bigdata.search.LanguageRange

All Implemented Interfaces:

Comparable<LanguageRange>

public class LanguageRange
extends Object
implements Comparable<LanguageRange>

This is an implementation of RFC 4647 language range, targetted at the specific needs within bigdata, and only supporting the extended filtering specified in section 3.3.2

Language ranges are comparable so that sorting an array and then matching a language tag against each member of the array in sequence will give the longest match. i.e. the longer ranges come first.

Author:

jeremycarroll

Constructor Summary

Constructors

Constructor and Description
LanguageRange(String range) Note range must be in lower case, this is not verified.

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTo(LanguageRange o)
boolean	equals(Object o)
boolean	extendedFilterMatch(String langTag) This implements the algoirthm of section 3.3.2 of RFC 4647 as modified with the observation about private use tags in this message.
int	hashCode()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LanguageRange

public LanguageRange(String range)

Note range must be in lower case, this is not verified.

Parameters:

range -

Method Detail

compareTo

public int compareTo(LanguageRange o)

Specified by:

compareTo in interface Comparable<LanguageRange>

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

extendedFilterMatch

public boolean extendedFilterMatch(String langTag)

This implements the algoirthm of section 3.3.2 of RFC 4647 as modified with the observation about private use tags in this message.

Parameters:

langTag - The RFC 5646 Language tag in lower case

Returns:

The result of the algorithm