| org.w3c.dom.DOMImplementationSource | 
This interface permits a DOM implementer to supply one or more
 implementations, based upon requested features and versions, as specified
 in . Each implemented DOMImplementationSource object is
 listed in the binding-specific list of available sources so that its
 DOMImplementation objects are made available.
 
See also the Document Object Model (DOM) Level 3 Core Specification.
| Public Methods | |||||||||||
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| A method to request the first DOM implementation that supports the
 specified features. | |||||||||||
| A method to request a list of DOM implementations that support the
 specified features and versions, as specified in . | |||||||||||
A method to request the first DOM implementation that supports the specified features.
| features | A string that specifies which features and versions
   are required. This is a space separated list in which each feature
   is specified by its name optionally followed by a space and a
   version number.  This method returns the first item of the list
   returned by getDOMImplementationList.  As an example,
   the string"XML 3.0 Traversal +Events 2.0"will
   request a DOM implementation that supports the module "XML" for its
   3.0 version, a module that support of the "Traversal" module for
   any version, and the module "Events" for its 2.0 version. The
   module "Events" must be accessible using the methodNode.getFeature()andDOMImplementation.getFeature(). | 
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null if this source has none.
A method to request a list of DOM implementations that support the specified features and versions, as specified in .
| features | A string that specifies which features and versions are required. This is a space separated list in which each feature is specified by its name optionally followed by a space and a version number. This is something like: "XML 3.0 Traversal +Events 2.0" | 
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