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DOMResourceResolver
provides a way for applications to
redirect references to external resources.
Applications needing to implement custom handling for external
resources can implement this interface and register their implementation
by setting the resourceResolver
attribute of the
DOMParser
.
The DOMParser
will then allow the application to intercept
any external entities (including the external DTD subset and external
parameter entities) before including them.
Many DOM applications will not need to implement this interface, but it will be especially useful for applications that build XML documents from databases or other specialized input sources, or for applications that use URN's.
Note: DOMResourceResolver
is based on the SAX2 [SAX] EntityResolver
interface.
See also the Document Object Model (DOM) Level 3 Load and Save Specification.
Method Summary | |
DOMInput |
resolveResource(java.lang.String publicId,
java.lang.String systemId,
java.lang.String baseURI)
Allow the application to resolve external resources. |
Method Detail |
public DOMInput resolveResource(java.lang.String publicId, java.lang.String systemId, java.lang.String baseURI)
DOMParser
will call this method before opening
any external resource except the top-level document entity (including
the external DTD subset, external entities referenced within the DTD,
and external entities referenced within the document element); the
application may request that the DOMParser
resolve the
resource itself, that it use an alternative URI, or that it use an
entirely different input source.
DOMParser
must
resolve it fully before calling this method.publicId
- The public identifier of the external entity being
referenced, or null
if no public identifier was
supplied or if the resource is not an entity.systemId
- The system identifier, a URI reference [IETF RFC 2396], of the
external resource being referenced.baseURI
- The absolute base URI of the resource being parsed, or
null
if there is no base URI.DOMInput
object describing the new input
source, or null
to request that the parser open a
regular URI connection to the system identifier.
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