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- All Superinterfaces:
URIReference
,XMLStructure
public interface RetrievalMethod extends URIReference, XMLStructure
A representation of the XMLRetrievalMethod
element as defined in the W3C Recommendation for XML-Signature Syntax and Processing. ARetrievalMethod
object is used to convey a reference toKeyInfo
information that is stored at another location. The XML schema definition is defined as:<element name="RetrievalMethod" type="ds:RetrievalMethodType"/> <complexType name="RetrievalMethodType"> <sequence> <element name="Transforms" type="ds:TransformsType" minOccurs="0"/> </sequence> <attribute name="URI" type="anyURI"/> <attribute name="Type" type="anyURI" use="optional"/> </complexType>
ARetrievalMethod
instance may be created by invoking one of thenewRetrievalMethod
methods of theKeyInfoFactory
class, and passing it the URI identifying the location of the KeyInfo, an optional type URI identifying the type of KeyInfo, and an optional list ofTransform
s; for example:KeyInfoFactory factory = KeyInfoFactory.getInstance("DOM"); RetrievalMethod rm = factory.newRetrievalMethod ("#KeyValue-1", KeyValue.DSA_TYPE, Collections.singletonList(Transform.BASE64));
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description Data
dereference(XMLCryptoContext context)
Dereferences theKeyInfo
information referenced by thisRetrievalMethod
and applies the specifiedTransform
s.List<Transform>
getTransforms()
String
getURI()
Returns the URI of the referencedKeyInfo
information.-
Methods declared in interface javax.xml.crypto.URIReference
getType
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Methods declared in interface javax.xml.crypto.XMLStructure
isFeatureSupported
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Method Detail
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getTransforms
List<Transform> getTransforms()
- Returns:
- an unmodifiable list of
Transform
objects (may be empty but nevernull
).
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getURI
String getURI()
Returns the URI of the referencedKeyInfo
information.- Specified by:
getURI
in interfaceURIReference
- Returns:
- the URI of the referenced
KeyInfo
information in RFC 2396 format (nevernull
)
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dereference
Data dereference(XMLCryptoContext context) throws URIReferenceException
Dereferences theKeyInfo
information referenced by thisRetrievalMethod
and applies the specifiedTransform
s.- Parameters:
context
- anXMLCryptoContext
that may contain additional useful information for dereferencing the URI. The context'sbaseURI
anddereferencer
parameters (if specified) are used to resolve and dereference thisRetrievalMethod
- Returns:
- a
Data
object representing the raw contents of theKeyInfo
information referenced by thisRetrievalMethod
. It is the caller's responsibility to convert the returned data to an appropriateKeyInfo
object. - Throws:
NullPointerException
- ifcontext
isnull
URIReferenceException
- if there is an error while dereferencing
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