6 methods override HandlerBase::defineOptions()

AreaPluginBase::defineOptions in core/modules/views/src/Plugin/views/area/AreaPluginBase.php: Information about options for all kinds of purposes will be held here.
ArgumentPluginBase::defineOptions in core/modules/views/src/Plugin/views/argument/ArgumentPluginBase.php: Information about options for all kinds of purposes will be held here.
FieldPluginBase::defineOptions in core/modules/views/src/Plugin/views/field/FieldPluginBase.php: Information about options for all kinds of purposes will be held here.
FilterPluginBase::defineOptions in core/modules/views/src/Plugin/views/filter/FilterPluginBase.php: Information about options for all kinds of purposes will be held here.
RelationshipPluginBase::defineOptions in core/modules/views/src/Plugin/views/relationship/RelationshipPluginBase.php: Information about options for all kinds of purposes will be held here.
SortPluginBase::defineOptions in core/modules/views/src/Plugin/views/sort/SortPluginBase.php: Information about options for all kinds of purposes will be held here.