select2/pages/14.advanced/02.default-adapters/04.data/docs.md

---

title: SelectAdapter taxonomy:

category: docs

---

Select2 provides the SelectAdapter as a default implementation of the DataAdapter adapter. It extends BaseAdapter.

This adapter can be overridden by assigning a custom adapter to the dataAdapter configuration option.

AMD Modules:

• select2/data/base
• select2/data/select

Decorators

Tags

This decorator implements the tagging feature.

AMD Modules:

select2/data/tags

MinimumInputLength

This decorator implements the minimum search term length feature as exposed through the minimumInputLength configuration option.

AMD Modules:

select2/data/minimumInputLength

MaximumInputLength

This decorator implements the maximum search term length feature as exposed through the maximumInputLength configuration option.

AMD Modules:

select2/data/maximumInputLength

InitSelection

This decorator provides backwards compatibility for the initSelection callback in version 3.5.

In the past, Select2 required an option called initSelection that was defined whenever a custom data source was being used, allowing for the initial selection for the component to be determined. This has been replaced by the current method on the data adapter.

AMD Modules:

select2/compat/initSelection"

Query

This decorator provides backwards compatibility for the query callback in version 3.5.

AMD Modules:

select2/compat/query

InputData

This decorator implements backwards compatibility with version 3.5's <input type="hidden" > elements.

In past versions of Select2, a <select> element could only be used with a limited subset of options. An <input type="hidden" > tag was required instead, which did not allow for a graceful fallback for users who did not have JavaScript enabled. Select2 now supports the <select> element for all options, so it is no longer required to use <input /> elements with Select2.

AMD Modules:

select2/compat/inputData