diff -u b/core/modules/migrate_drupal/src/Tests/d6/MigrateTaxonomyVocabularyTest.php b/core/modules/migrate_drupal/src/Tests/d6/MigrateTaxonomyVocabularyTest.php
--- b/core/modules/migrate_drupal/src/Tests/d6/MigrateTaxonomyVocabularyTest.php
+++ b/core/modules/migrate_drupal/src/Tests/d6/MigrateTaxonomyVocabularyTest.php
@@ -49,13 +49,13 @@
       $this->assertEqual($vocabulary->getName(), "vocabulary $j (i=$i)");
       $this->assertEqual($vocabulary->getDescription(), "description of vocabulary $j (i=$i)");
       $this->assertEqual($vocabulary->getHierarchy(), $i);
-      $this->assertEqual($vocabulary->getWeight(), 4 + $i);
+      $this->assertEqual($vocabulary->get('weight'), 4 + $i);
     }
     $vocabulary = entity_load('taxonomy_vocabulary', 'vocabulary_name_much_longer_than');
     $this->assertEqual($vocabulary->getName(), 'vocabulary name much longer than thirty two characters');
     $this->assertEqual($vocabulary->getDescription(), 'description of vocabulary name much longer than thirty two characters');
     $this->assertEqual($vocabulary->getHierarchy(), 3);
-    $this->assertEqual($vocabulary->getWeight(), 7);
+    $this->assertEqual($vocabulary->get('weight'), 7);
   }
 
 }
interdiff impossible; taking evasive action
reverted:
--- b/core/modules/taxonomy/src/Entity/Vocabulary.php
+++ a/core/modules/taxonomy/src/Entity/Vocabulary.php
@@ -52,21 +52,21 @@
    *
    * @var string
    */
+  public $vid;
-  protected $vid;
 
   /**
    * Name of the vocabulary.
    *
    * @var string
    */
+  public $name;
-  protected $name;
 
   /**
    * Description of the vocabulary.
    *
    * @var string
    */
+  public $description;
-  protected $description;
 
   /**
    * The type of hierarchy allowed within the vocabulary.
@@ -78,14 +78,58 @@
    *
    * @var integer
    */
+  public $hierarchy = TAXONOMY_HIERARCHY_DISABLED;
-  protected $hierarchy = TAXONOMY_HIERARCHY_DISABLED;
 
   /**
    * The weight of this vocabulary in relation to other vocabularies.
    *
    * @var integer
    */
+  public $weight = 0;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function id() {
+    return $this->vid;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function postSave(EntityStorageInterface $storage, $update = TRUE) {
+    parent::postSave($storage, $update);
+
+    if ($update && $this->getOriginalId() != $this->id() && !$this->isSyncing()) {
+      // Reflect machine name changes in the definitions of existing 'taxonomy'
+      // fields.
+      $field_ids = array();
+      $field_map = \Drupal::entityManager()->getFieldMapByFieldType('taxonomy_term_reference');
+      foreach ($field_map as $entity_type => $field_storages) {
+        foreach ($field_storages as $field_storage => $info) {
+          $field_ids[] = $entity_type . '.' . $field_storage;
+        }
+      }
+
+      $field_storages = \Drupal::entityManager()->getStorage('field_storage_config')->loadMultiple($field_ids);
+
+      foreach ($field_storages as $field_storage) {
+        $update_storage = FALSE;
+
+        foreach ($field_storage->settings['allowed_values'] as &$value) {
+          if ($value['vocabulary'] == $this->getOriginalId()) {
+            $value['vocabulary'] = $this->id();
+            $update_storage = TRUE;
+          }
+        }
+
+        if ($update_storage) {
+          $field_storage->save();
+        }
+      }
+    }
+    $storage->resetCache($update ? array($this->getOriginalId()) : array());
+  }
-  protected $weight = 0;
 
   /**
    * {@inheritdoc}
@@ -139,123 +183,4 @@
     }
   }
 
-  /**
-   * {@inheritdoc}
-   */
-  public function getWeight() {
-    return $this->get('weight');
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function setWeight($weight) {
-    $this->set('weight', $weight);
-    return $this;
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function getDescription() {
-    return $this->get('description');
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function setDescription($description) {
-    $this->set('description', $description);
-    return $this;
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function getHierarchy() {
-    return $this->get('hierarchy');
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function setHierarchy($hierarchy) {
-    $this->set('hierarchy', $hierarchy);
-    return $this;
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function getVid() {
-    return $this->get('vid');
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function setVid($machineName) {
-    $this->set('vid', $machineName);
-    return $this;
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function getName() {
-    return $this->get('name');
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function setName($name) {
-    $this->set('name', $name);
-    return $this;
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function postSave(EntityStorageInterface $storage, $update = TRUE) {
-    parent::postSave($storage, $update);
-
-    if ($update && $this->getOriginalId() != $this->id() && !$this->isSyncing()) {
-      // Reflect machine name changes in the definitions of existing 'taxonomy'
-      // fields.
-      $field_ids = array();
-      $field_map = \Drupal::entityManager()->getFieldMapByFieldType('taxonomy_term_reference');
-      foreach ($field_map as $entity_type => $fields) {
-        foreach ($fields as $field => $info) {
-          $field_ids[] = $entity_type . '.' . $field;
-        }
-      }
-
-      $field_storages = \Drupal::entityManager()->getStorage('field_storage_config')->loadMultiple($field_ids);
-
-      foreach ($field_storages as $field_storage) {
-        $update_field = FALSE;
-
-        foreach ($field_storage->settings['allowed_values'] as &$value) {
-          if ($value['vocabulary'] == $this->getOriginalId()) {
-            $value['vocabulary'] = $this->id();
-            $update_field = TRUE;
-          }
-        }
-
-        if ($update_field) {
-          $field_storage->save();
-        }
-      }
-    }
-    $storage->resetCache($update ? array($this->getOriginalId()) : array());
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function id() {
-    return $this->vid;
-  }
-
 }
unchanged:
--- a/core/modules/taxonomy/src/Entity/Vocabulary.php
+++ b/core/modules/taxonomy/src/Entity/Vocabulary.php
@@ -52,21 +52,21 @@ class Vocabulary extends ConfigEntityBundleBase implements VocabularyInterface {
    *
    * @var string
    */
-  public $vid;
+  protected $vid;
 
   /**
    * Name of the vocabulary.
    *
    * @var string
    */
-  public $name;
+  protected $name;
 
   /**
    * Description of the vocabulary.
    *
    * @var string
    */
-  public $description;
+  protected $description;
 
   /**
    * The type of hierarchy allowed within the vocabulary.
@@ -78,14 +78,51 @@ class Vocabulary extends ConfigEntityBundleBase implements VocabularyInterface {
    *
    * @var integer
    */
-  public $hierarchy = TAXONOMY_HIERARCHY_DISABLED;
+  protected $hierarchy = TAXONOMY_HIERARCHY_DISABLED;
 
   /**
    * The weight of this vocabulary in relation to other vocabularies.
    *
    * @var integer
    */
-  public $weight = 0;
+  protected $weight = 0;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getDescription() {
+    return $this->get('description');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getHierarchy() {
+    return $this->get('hierarchy');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setHierarchy($hierarchy) {
+    $this->set('hierarchy', $hierarchy);
+    return $this;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getName() {
+    return $this->get('name');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setName($name) {
+    $this->set('name', $name);
+    return $this;
+  }
 
   /**
    * {@inheritdoc}
diff -u b/core/modules/taxonomy/src/Tests/TermFieldTest.php b/core/modules/taxonomy/src/Tests/TermFieldTest.php
--- b/core/modules/taxonomy/src/Tests/TermFieldTest.php
+++ b/core/modules/taxonomy/src/Tests/TermFieldTest.php
@@ -166,7 +166,7 @@
     $this->field_storage->save();
     // Change the machine name.
     $new_name = Unicode::strtolower($this->randomMachineName());
-    $this->vocabulary->setVid($new_name);
+    $this->vocabulary->set('vid', $new_name);
     $this->vocabulary->save();
 
     // Check that the field is still attached to the vocabulary.
diff -u b/core/modules/taxonomy/src/Tests/VocabularyCrudTest.php b/core/modules/taxonomy/src/Tests/VocabularyCrudTest.php
--- b/core/modules/taxonomy/src/Tests/VocabularyCrudTest.php
+++ b/core/modules/taxonomy/src/Tests/VocabularyCrudTest.php
@@ -75,7 +75,7 @@
     // Change the name and description.
     $vocabulary = $original_vocabulary;
     $vocabulary->setName($this->randomMachineName());
-    $vocabulary->setDescription($this->randomMachineName());
+    $vocabulary->set('description', $this->randomMachineName());
     $vocabulary->save();
 
     // Load the vocabulary.
@@ -100,13 +100,13 @@
 
     // Create some vocabularies and assign weights.
     $vocabulary1 = $this->createVocabulary();
-    $vocabulary1->setWeight(0);
+    $vocabulary1->set('weight', 0);
     $vocabulary1->save();
     $vocabulary2 = $this->createVocabulary();
-    $vocabulary2->setWeight(1);
+    $vocabulary2->set('weight', 1);
     $vocabulary2->save();
     $vocabulary3 = $this->createVocabulary();
-    $vocabulary3->setWeight(2);
+    $vocabulary3->set('weight', 2);
     $vocabulary3->save();
 
     // Check if third party settings exist.
@@ -159,7 +159,7 @@
     // Change the machine name.
     $old_name = $this->vocabulary->id();
     $new_name = Unicode::strtolower($this->randomMachineName());
-    $this->vocabulary->setVid($new_name);
+    $this->vocabulary->set('vid', $new_name);
     $this->vocabulary->save();
 
     // Check that entity bundles are properly updated.
diff -u b/core/modules/taxonomy/src/Tests/VocabularyUiTest.php b/core/modules/taxonomy/src/Tests/VocabularyUiTest.php
--- b/core/modules/taxonomy/src/Tests/VocabularyUiTest.php
+++ b/core/modules/taxonomy/src/Tests/VocabularyUiTest.php
@@ -83,8 +83,8 @@
     $vocabularies = entity_load_multiple('taxonomy_vocabulary');
     $edit = array();
     foreach ($vocabularies as $key => $vocabulary) {
-      $weight = -$vocabulary->getWeight();
-      $vocabularies[$key]->setWeight($weight);
+      $weight = -$vocabulary->get('weight');
+      $vocabularies[$key]->set('weight', $weight);
       $edit['vocabularies[' . $key . '][weight]'] = $weight;
     }
     // Saving the new weights via the interface.
@@ -96,7 +96,7 @@
 
     // Check that the weights are saved in the database correctly.
     foreach ($vocabularies as $key => $vocabulary) {
-      $this->assertEqual($new_vocabularies[$key]->getWeight(), $vocabularies[$key]->getWeight(), 'The vocabulary weight was changed.');
+      $this->assertEqual($new_vocabularies[$key]->get('weight'), $vocabularies[$key]->get('weight'), 'The vocabulary weight was changed.');
     }
   }
 
diff -u b/core/modules/taxonomy/src/VocabularyInterface.php b/core/modules/taxonomy/src/VocabularyInterface.php
--- b/core/modules/taxonomy/src/VocabularyInterface.php
+++ b/core/modules/taxonomy/src/VocabularyInterface.php
@@ -34,25 +34,6 @@
   public function getName();
 
   /**
-   * Sets the vocabulary weight.
-   *
-   * @param integer $weight
-   *   The weight of vocabulary.
-   *
-   * @return \Drupal\taxonomy\VocabularyInterface
-   *   The called Vocabulary entity.
-   */
-  public function setWeight($weight);
-
-  /**
-   * Returns the vocabulary weight.
-   *
-   * @return integer
-   *   The vocabulary weight.
-   */
-  public function getWeight();
-
-  /**
    * Sets the vocabulary hierarchy.
    *
    * @param integer $hierarchy
@@ -76,17 +57,6 @@
   public function getHierarchy();
 
   /**
-   * Sets the vocabulary description.
-   *
-   * @param string description
-   *   The vocabulary description.
-   *
-   * @return \Drupal\taxonomy\VocabularyInterface
-   *   The called Vocabulary entity.
-   */
-  public function setDescription($description);
-
-  /**
    * Returns the vocabulary description.
    *
    * @return string
@@ -96,20 +66,2 @@
 
-  /**
-   * Sets the vocabulary vid.
-   *
-   * @param string $machineName
-   *   The vocabulary machine name.
-   *
-   * @return \Drupal\taxonomy\VocabularyInterface
-   *   The called Vocabulary entity.
-   */
-  public function setVid($machineName);
-
-  /**
-   * Returns the vocabulary vid.
-   *
-   * @return string
-   *   The vocabulary machine name.
-   */
-  public function getVid();
 }
diff -u b/core/modules/views/src/Tests/ViewsTaxonomyAutocompleteTest.php b/core/modules/views/src/Tests/ViewsTaxonomyAutocompleteTest.php
--- b/core/modules/views/src/Tests/ViewsTaxonomyAutocompleteTest.php
+++ b/core/modules/views/src/Tests/ViewsTaxonomyAutocompleteTest.php
@@ -67,7 +67,7 @@
   public function testTaxonomyAutocomplete() {
     $this->user = $this->drupalCreateUser(array('access content'));
     $this->drupalLogin($this->user);
-    $base_autocomplete_path = 'taxonomy/autocomplete_vid/' . $this->vocabulary->getVid();
+    $base_autocomplete_path = 'taxonomy/autocomplete_vid/' . $this->vocabulary->id();
 
     // Test that no terms returns an empty array.
     $this->assertIdentical(array(), $this->drupalGetJSON($base_autocomplete_path));