7 methods override FieldItemBase::preSave() in Drupal 8

AutoIncrementingTestItem::preSave in core/modules/system/tests/modules/entity_test/src/Plugin/Field/FieldType/AutoIncrementingTestItem.php

Defines custom presave behavior for field values.

ChangedItem::preSave in core/lib/Drupal/Core/Field/Plugin/Field/FieldType/ChangedItem.php

Defines custom presave behavior for field values.

DecimalItem::preSave in core/lib/Drupal/Core/Field/Plugin/Field/FieldType/DecimalItem.php

Defines custom presave behavior for field values.

EntityReferenceItem::preSave in core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php

Defines custom presave behavior for field values.

FieldTestItem::preSave in core/modules/system/tests/modules/entity_test/src/Plugin/Field/FieldType/FieldTestItem.php

Defines custom presave behavior for field values.

PasswordItem::preSave in core/lib/Drupal/Core/Field/Plugin/Field/FieldType/PasswordItem.php

Defines custom presave behavior for field values.

PathItem::preSave in core/modules/path/src/Plugin/Field/FieldType/PathItem.php

Defines custom presave behavior for field values.