DefaultExternalIdentifierComparator (PSI :: JAMI - Java framework for molecular interactions 3.3.0 API)

java.lang.Object
- psidev.psi.mi.jami.utils.comparator.xref.DefaultExternalIdentifierComparator

```
public class DefaultExternalIdentifierComparator
extends Object
```
Default comparator for external identifiers (Xref database and id). It is not a java comparator because the order can change. It compares first the databases and then the ids (case sensitive) but ignores the version. To compare the databases, it looks first at the PSI-MI id if they exist, otherwise it looks at the database shortlabel only. - Two external identifiers which are null are equals - If the two external identifiers are set : - Compare the databases. If both databases are equal, compare the ids (is case sensitive)
Since:
```
18/12/12
```
Version:

$Id$

Author:

Marine Dumousseau (marine@ebi.ac.uk)

Constructor Summary

Constructors
Constructor Description

DefaultExternalIdentifierComparator()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static boolean`	`areEquals(Xref externalIdentifier1, Xref externalIdentifier2)`	Use DefaultIdentifierComparator to know if two external identifiers are equals.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - DefaultExternalIdentifierComparator
```
public DefaultExternalIdentifierComparator()
```
- Method Detail
  - areEquals
```
public static boolean areEquals(Xref externalIdentifier1,
                                Xref externalIdentifier2)
```
    Use DefaultIdentifierComparator to know if two external identifiers are equals.
    
    Parameters:
    
    externalIdentifier1 - a Xref object.
    
    externalIdentifier2 - a Xref object.
    
    Returns:
    
    true if the two external identifiers are equal