diff --git a/core/lib/Drupal/Core/Field/FieldItemInterface.php b/core/lib/Drupal/Core/Field/FieldItemInterface.php
index bb1c5e5..61520ba 100644
--- a/core/lib/Drupal/Core/Field/FieldItemInterface.php
+++ b/core/lib/Drupal/Core/Field/FieldItemInterface.php
@@ -56,7 +56,7 @@
    *     specify another field as related, only existing SQL tables,
    *     such as {taxonomy_term_data}.
    */
-  public static function schema(FieldDefinitionInterface $field_definition);
+  public static function getSchema(FieldDefinitionInterface $field_definition);
 
   /**
    * Gets the entity that field belongs to.
diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/BooleanItem.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/BooleanItem.php
index 1d9884f..0257d0b 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/BooleanItem.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/BooleanItem.php
@@ -46,7 +46,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'value' => array(
diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/DateItem.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/DateItem.php
index c1276dd..850cdbf 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/DateItem.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/DateItem.php
@@ -48,7 +48,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'value' => array(
diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EmailItem.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EmailItem.php
index aee1a4a..b452fc4 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EmailItem.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EmailItem.php
@@ -47,7 +47,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'value' => array(
diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php
index 7ae4f07..49a43d5 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php
@@ -86,7 +86,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     $target_type = $field_definition->getSetting('target_type');
     $target_type_info = \Drupal::entityManager()->getDefinition($target_type);
 
diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/FloatItem.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/FloatItem.php
index 045af1c..ed04fb5 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/FloatItem.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/FloatItem.php
@@ -47,7 +47,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'value' => array(
diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/IntegerItem.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/IntegerItem.php
index ec49cdb..6c12e33 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/IntegerItem.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/IntegerItem.php
@@ -47,7 +47,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'value' => array(
diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/LanguageItem.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/LanguageItem.php
index 3bae65b..b6bb19a 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/LanguageItem.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/LanguageItem.php
@@ -59,7 +59,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'value' => array(
diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/LegacyConfigFieldItem.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/LegacyConfigFieldItem.php
index b0f74fb..e86677f 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/LegacyConfigFieldItem.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/LegacyConfigFieldItem.php
@@ -31,7 +31,7 @@
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     $definition = \Drupal::service('plugin.manager.field.field_type')->getDefinition($field_definition->type);
     $module = $definition['provider'];
     module_load_install($module);
diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/StringItem.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/StringItem.php
index ce78a40..4ac010e 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/StringItem.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/StringItem.php
@@ -50,7 +50,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'value' => array(
diff --git a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/UriItem.php b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/UriItem.php
index 4cad163..b72f0f5 100644
--- a/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/UriItem.php
+++ b/core/lib/Drupal/Core/Field/Plugin/Field/FieldType/UriItem.php
@@ -46,7 +46,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'value' => array(
diff --git a/core/modules/comment/comment.install b/core/modules/comment/comment.install
index 9239344..19c6ce5 100644
--- a/core/modules/comment/comment.install
+++ b/core/modules/comment/comment.install
@@ -519,7 +519,7 @@ function comment_update_8006(&$sandbox) {
       $index++;
     }
     $field_object = new Field($field);
-    $field['schema'] = CommentItem::schema($field_object);
+    $field['schema'] = CommentItem::getSchema($field_object);
     _update_8003_field_create_field($field);
 
     // @todo Refactor once https://drupal.org/node/1856972 lands.
diff --git a/core/modules/comment/lib/Drupal/comment/Plugin/Field/FieldType/CommentItem.php b/core/modules/comment/lib/Drupal/comment/Plugin/Field/FieldType/CommentItem.php
index 3145e8f..4729dfd 100644
--- a/core/modules/comment/lib/Drupal/comment/Plugin/Field/FieldType/CommentItem.php
+++ b/core/modules/comment/lib/Drupal/comment/Plugin/Field/FieldType/CommentItem.php
@@ -71,7 +71,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'status' => array(
diff --git a/core/modules/datetime/lib/Drupal/datetime/Plugin/Field/FieldType/DateTimeItem.php b/core/modules/datetime/lib/Drupal/datetime/Plugin/Field/FieldType/DateTimeItem.php
index ca7e56c..e49b7e5 100644
--- a/core/modules/datetime/lib/Drupal/datetime/Plugin/Field/FieldType/DateTimeItem.php
+++ b/core/modules/datetime/lib/Drupal/datetime/Plugin/Field/FieldType/DateTimeItem.php
@@ -60,7 +60,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'value' => array(
diff --git a/core/modules/entity_reference/lib/Drupal/entity_reference/ConfigurableEntityReferenceItem.php b/core/modules/entity_reference/lib/Drupal/entity_reference/ConfigurableEntityReferenceItem.php
index 86fc8e0..6c2f874 100644
--- a/core/modules/entity_reference/lib/Drupal/entity_reference/ConfigurableEntityReferenceItem.php
+++ b/core/modules/entity_reference/lib/Drupal/entity_reference/ConfigurableEntityReferenceItem.php
@@ -66,8 +66,8 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
-    $schema = parent::schema($field_definition);
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
+    $schema = parent::getSchema($field_definition);
 
     $target_type = $field_definition->getSetting('target_type');
     $target_type_info = \Drupal::entityManager()->getDefinition($target_type);
diff --git a/core/modules/field/tests/modules/field_test/lib/Drupal/field_test/Plugin/Field/FieldType/ShapeItem.php b/core/modules/field/tests/modules/field_test/lib/Drupal/field_test/Plugin/Field/FieldType/ShapeItem.php
index 15d05cd..2337746 100644
--- a/core/modules/field/tests/modules/field_test/lib/Drupal/field_test/Plugin/Field/FieldType/ShapeItem.php
+++ b/core/modules/field/tests/modules/field_test/lib/Drupal/field_test/Plugin/Field/FieldType/ShapeItem.php
@@ -53,7 +53,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     $foreign_keys = array();
     // The 'foreign keys' key is not always used in tests.
     if ($field_definition->getSetting('foreign_key_name')) {
diff --git a/core/modules/field/tests/modules/field_test/lib/Drupal/field_test/Plugin/Field/FieldType/TestItem.php b/core/modules/field/tests/modules/field_test/lib/Drupal/field_test/Plugin/Field/FieldType/TestItem.php
index f8cd226..15e7d88 100644
--- a/core/modules/field/tests/modules/field_test/lib/Drupal/field_test/Plugin/Field/FieldType/TestItem.php
+++ b/core/modules/field/tests/modules/field_test/lib/Drupal/field_test/Plugin/Field/FieldType/TestItem.php
@@ -57,7 +57,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'value' => array(
diff --git a/core/modules/file/lib/Drupal/file/Plugin/Field/FieldType/FileItem.php b/core/modules/file/lib/Drupal/file/Plugin/Field/FieldType/FileItem.php
index 9bb9dd0..0ae226a 100644
--- a/core/modules/file/lib/Drupal/file/Plugin/Field/FieldType/FileItem.php
+++ b/core/modules/file/lib/Drupal/file/Plugin/Field/FieldType/FileItem.php
@@ -49,7 +49,7 @@ class FileItem extends EntityReferenceItem implements ConfigFieldItemInterface {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'target_id' => array(
diff --git a/core/modules/image/lib/Drupal/image/Plugin/Field/FieldType/ImageItem.php b/core/modules/image/lib/Drupal/image/Plugin/Field/FieldType/ImageItem.php
index 1cface2..4d3dcd6 100644
--- a/core/modules/image/lib/Drupal/image/Plugin/Field/FieldType/ImageItem.php
+++ b/core/modules/image/lib/Drupal/image/Plugin/Field/FieldType/ImageItem.php
@@ -70,7 +70,7 @@ class ImageItem extends FileItem {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'target_id' => array(
diff --git a/core/modules/link/lib/Drupal/link/Plugin/Field/FieldType/LinkItem.php b/core/modules/link/lib/Drupal/link/Plugin/Field/FieldType/LinkItem.php
index 1102aec..6be0936 100644
--- a/core/modules/link/lib/Drupal/link/Plugin/Field/FieldType/LinkItem.php
+++ b/core/modules/link/lib/Drupal/link/Plugin/Field/FieldType/LinkItem.php
@@ -54,7 +54,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'url' => array(
diff --git a/core/modules/number/lib/Drupal/number/Plugin/Field/FieldType/DecimalItem.php b/core/modules/number/lib/Drupal/number/Plugin/Field/FieldType/DecimalItem.php
index 58b52a2..5386486 100644
--- a/core/modules/number/lib/Drupal/number/Plugin/Field/FieldType/DecimalItem.php
+++ b/core/modules/number/lib/Drupal/number/Plugin/Field/FieldType/DecimalItem.php
@@ -48,7 +48,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'value' => array(
diff --git a/core/modules/number/lib/Drupal/number/Plugin/Field/FieldType/FloatItem.php b/core/modules/number/lib/Drupal/number/Plugin/Field/FieldType/FloatItem.php
index 5765147..d3978d1 100644
--- a/core/modules/number/lib/Drupal/number/Plugin/Field/FieldType/FloatItem.php
+++ b/core/modules/number/lib/Drupal/number/Plugin/Field/FieldType/FloatItem.php
@@ -43,7 +43,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'value' => array(
diff --git a/core/modules/number/lib/Drupal/number/Plugin/Field/FieldType/IntegerItem.php b/core/modules/number/lib/Drupal/number/Plugin/Field/FieldType/IntegerItem.php
index 6c44d76..49c8bcc 100644
--- a/core/modules/number/lib/Drupal/number/Plugin/Field/FieldType/IntegerItem.php
+++ b/core/modules/number/lib/Drupal/number/Plugin/Field/FieldType/IntegerItem.php
@@ -43,7 +43,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'value' => array(
diff --git a/core/modules/path/lib/Drupal/path/Plugin/Field/FieldType/PathItem.php b/core/modules/path/lib/Drupal/path/Plugin/Field/FieldType/PathItem.php
index 6d75cac..18f2679 100644
--- a/core/modules/path/lib/Drupal/path/Plugin/Field/FieldType/PathItem.php
+++ b/core/modules/path/lib/Drupal/path/Plugin/Field/FieldType/PathItem.php
@@ -49,7 +49,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array();
   }
 
diff --git a/core/modules/taxonomy/lib/Drupal/taxonomy/Plugin/Field/FieldType/TaxonomyTermReferenceItem.php b/core/modules/taxonomy/lib/Drupal/taxonomy/Plugin/Field/FieldType/TaxonomyTermReferenceItem.php
index 4884e92..d74d72f 100644
--- a/core/modules/taxonomy/lib/Drupal/taxonomy/Plugin/Field/FieldType/TaxonomyTermReferenceItem.php
+++ b/core/modules/taxonomy/lib/Drupal/taxonomy/Plugin/Field/FieldType/TaxonomyTermReferenceItem.php
@@ -86,7 +86,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'target_id' => array(
diff --git a/core/modules/telephone/lib/Drupal/telephone/Plugin/Field/FieldType/TelephoneItem.php b/core/modules/telephone/lib/Drupal/telephone/Plugin/Field/FieldType/TelephoneItem.php
index e23d6fa..f5f1afb 100644
--- a/core/modules/telephone/lib/Drupal/telephone/Plugin/Field/FieldType/TelephoneItem.php
+++ b/core/modules/telephone/lib/Drupal/telephone/Plugin/Field/FieldType/TelephoneItem.php
@@ -34,7 +34,7 @@ class TelephoneItem extends ConfigFieldItemBase {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'value' => array(
diff --git a/core/modules/text/lib/Drupal/text/Plugin/Field/FieldType/TextItem.php b/core/modules/text/lib/Drupal/text/Plugin/Field/FieldType/TextItem.php
index bf415c5..2528863 100644
--- a/core/modules/text/lib/Drupal/text/Plugin/Field/FieldType/TextItem.php
+++ b/core/modules/text/lib/Drupal/text/Plugin/Field/FieldType/TextItem.php
@@ -31,7 +31,7 @@ class TextItem extends TextItemBase {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'value' => array(
diff --git a/core/modules/text/lib/Drupal/text/Plugin/Field/FieldType/TextLongItem.php b/core/modules/text/lib/Drupal/text/Plugin/Field/FieldType/TextLongItem.php
index 7e378fc..7a831b3 100644
--- a/core/modules/text/lib/Drupal/text/Plugin/Field/FieldType/TextLongItem.php
+++ b/core/modules/text/lib/Drupal/text/Plugin/Field/FieldType/TextLongItem.php
@@ -28,7 +28,7 @@ class TextLongItem extends TextItemBase {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'value' => array(
diff --git a/core/modules/text/lib/Drupal/text/Plugin/Field/FieldType/TextWithSummaryItem.php b/core/modules/text/lib/Drupal/text/Plugin/Field/FieldType/TextWithSummaryItem.php
index 36df950..585be71 100644
--- a/core/modules/text/lib/Drupal/text/Plugin/Field/FieldType/TextWithSummaryItem.php
+++ b/core/modules/text/lib/Drupal/text/Plugin/Field/FieldType/TextWithSummaryItem.php
@@ -57,7 +57,7 @@ public function getPropertyDefinitions() {
   /**
    * {@inheritdoc}
    */
-  public static function schema(FieldDefinitionInterface $field_definition) {
+  public static function getSchema(FieldDefinitionInterface $field_definition) {
     return array(
       'columns' => array(
         'value' => array(