Make Item and Property no longer extend Entity

This patch removes the inheritance from Item and Property to Entity. It
also removes Entity as it no longer has an implementation in this
component and cannot be used or tested now.

Author: Benestar

RELEASE-NOTES.md

@@ -1,5 +1,13 @@
 # Wikibase DataModel release notes
 
+## Version 6.0.0 (dev)
+
+* Removed `Entity` class (deprecated since 1.0)
+* `Item` and `Property` no longer extend `Entity`
+    * Removed `getLabel`, `getLabels`, `getDescription`, `getDescriptions`, `getAliases`,
+      `getAllAliases`, `setLabels`, `setDescriptions`, `addAliases`, `setAllAliases`,
+      `removeLabel`, `removeDescription` and `removeAliases` methods
+
 ## Version 5.1.0 (2016-03-08)
 
 This release significantly reduces the memory footprint when entities are cloned.

src/Entity/Entity.php

@@ -9,6 +9,7 @@
 use Wikibase\DataModel\Statement\StatementList;
 use Wikibase\DataModel\Statement\StatementListHolder;
 use Wikibase\DataModel\Term\Fingerprint;
+use Wikibase\DataModel\Term\FingerprintHolder;
 
 /**
  * Represents a single Wikibase item.
@@ -19,7 +20,7 @@
  * @licence GNU GPL v2+
  * @author Jeroen De Dauw < jeroendedauw@gmail.com >
  */
-class Item extends Entity implements StatementListHolder {
+class Item implements EntityDocument, FingerprintHolder, StatementListHolder {
 
 	const ENTITY_TYPE = 'item';
 

src/Entity/Item.php

@@ -6,6 +6,7 @@
 use Wikibase\DataModel\Statement\StatementList;
 use Wikibase\DataModel\Statement\StatementListHolder;
 use Wikibase\DataModel\Term\Fingerprint;
+use Wikibase\DataModel\Term\FingerprintHolder;
 
 /**
  * Represents a single Wikibase property.
@@ -16,7 +17,7 @@
  * @licence GNU GPL v2+
  * @author Jeroen De Dauw < jeroendedauw@gmail.com >
  */
-class Property extends Entity implements StatementListHolder {
+class Property implements EntityDocument, FingerprintHolder, StatementListHolder {
 
 	const ENTITY_TYPE = 'property';
 

src/Entity/Property.php

@@ -18,7 +18,6 @@
 
 /**
  * @covers Wikibase\DataModel\Entity\Item
- * @covers Wikibase\DataModel\Entity\Entity
  *
  * @group Wikibase
  * @group WikibaseItem

tests/unit/Entity/ItemTest.php

@@ -18,7 +18,6 @@
 
 /**
  * @covers Wikibase\DataModel\Entity\Property
- * @covers Wikibase\DataModel\Entity\Entity
  *
  * @group Wikibase
  * @group WikibaseProperty