Module java.xml
Package org.w3c.dom

# Interface DOMImplementationList

public interface DOMImplementationList
The `DOMImplementationList` interface provides the abstraction of an ordered collection of DOM implementations, without defining or constraining how this collection is implemented. The items in the `DOMImplementationList` are accessible via an integral index, starting from 0.

See also the Document Object Model (DOM) Level 3 Core Specification.

Since:
  1.5, DOM Level 3

- ## Method Summary

  Modifier and Type
  Method
  Description
  `int`
  `getLength()`
  The number of `DOMImplementation`s in the list.
  `DOMImplementation`
  `item(int index)`
  Returns the `index`th item in the collection.

- ## Method Details

  - ### item

    DOMImplementation item(int index)
    Returns the `index`th item in the collection. If `index` is greater than or equal to the number of `DOMImplementation`s in the list, this returns `null`.
    Parameters:
      `index` - Index into the collection.
    Returns:
      The `DOMImplementation` at the `index` th position in the `DOMImplementationList`, or `null` if that is not a valid index.

  - ### getLength

    int getLength()
    The number of `DOMImplementation`s in the list. The range of valid child node indices is 0 to `length-1` inclusive.