Package psidev.psi.mi.jami.utils.comparator.xref

Class ExactXrefComparator

java.lang.Object

psidev.psi.mi.jami.utils.comparator.xref.UnambiguousXrefComparator

psidev.psi.mi.jami.utils.comparator.xref.ExactXrefComparator

All Implemented Interfaces:

Comparator<Xref>

public class ExactXrefComparator
extends UnambiguousXrefComparator

Exact comparator for Xrefs. It compares first the databases using UnambiguousCvTermComparator, then the ids (case sensitive) and then the version. To compare the databases, it looks first at the identifiers id if they both exist, otherwise it looks at the database shortlabel only. - Two external identifiers which are null are equals - The external identifier which is not null is before null. - If the two external identifiers are set : - compare the databases. If both databases are equal, compare the ids (is case sensitive) - if both ids are the same, compares the versions. - If both xref databases and ids are the same, use UnambiguousCvTermComparator to compare the qualifiers.

Since:

20/12/12

Version:

$Id$

Author:

Marine Dumousseau (marine@ebi.ac.uk)

Constructor Summary

Constructors

Constructor	Description
ExactXrefComparator()	Constructor for ExactXrefComparator.

Method Summary

Modifier and Type	Method	Description
static boolean	areEquals(Xref xref1, Xref xref2)	Use ExactXrefComparator to know if two xrefs are equals.
int	compare(Xref xref1, Xref xref2)	It compares first the databases and then the ids (case sensitive) but ignores the version.
static int	hashCode(Xref xref)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

ExactXrefComparator

public ExactXrefComparator()

Constructor for ExactXrefComparator.

Method Detail

compare

public int compare(Xref xref1,
                   Xref xref2)

It compares first the databases and then the ids (case sensitive) but ignores the version. To compare the databases, it looks first at the identifiers id (the database with identifier will always come first), otherwise it looks at the database shortlabel only. If one database identifier is null, it will always comes after an ExternalIdentifier having a non null database id. Then it will compare the qualifier. To compare the qualifiers, it looks first at the identifiers id if they both exist, otherwise it looks at the qualifier shortnames only. If one qualifier identifier is null, it will always comes after a Xref having a non null qualifiers id. - Two xrefs which are null are equals - The xref which is not null is before null. - Use UnambiguousExternalIdentifierComparator to compare first the database and id. - If both xref databases and ids are the same, compare the qualifiers. It compares first the databases using UnambiguousCvTermComparator, then the ids (case sensitive) and then the version. To compare the databases, it looks first at the identifiers id if they both exist, otherwise it looks at the database shortlabel only. - Two external identifiers which are null are equals - The external identifier which is not null is before null. - If the two external identifiers are set : - compare the databases. If both databases are equal, compare the ids (is case sensitive) - if both ids are the same, compares the versions. - If both xref databases and ids are the same, use UnambiguousCvTermComparator to compare the qualifiers.

Specified by:

compare in interface Comparator<Xref>

Overrides:

compare in class UnambiguousXrefComparator

Parameters:

xref1 - a Xref object.

xref2 - a Xref object.

Returns:

a int.

areEquals

public static boolean areEquals(Xref xref1,
                                Xref xref2)

Use ExactXrefComparator to know if two xrefs are equals.

hashCode

public static int hashCode(Xref xref)