Module java.xml.crypto
Package javax.xml.crypto

Interface XMLCryptoContext

All Known Subinterfaces:
XMLSignContext, XMLValidateContext
All Known Implementing Classes:
DOMCryptoContext, DOMSignContext, DOMValidateContext
public interface XMLCryptoContext
Contains common context information for XML cryptographic operations.

This interface contains methods for setting and retrieving properties that affect the processing of XML signatures or XML encrypted structures.

Note that XMLCryptoContext instances can contain information and state specific to the XML cryptographic structure it is used with. The results are unpredictable if an XMLCryptoContext is used with multiple structures (for example, you should not use the same XMLValidateContext instance to validate two different XMLSignature objects).

Since:
1.6

  • Method Details

    • getBaseURI

      String getBaseURI()
      Returns the base URI.
      Returns:
      the base URI, or null if not specified
      See Also:
      setBaseURI(String)

    • setBaseURI

      void setBaseURI​(String baseURI)
      Sets the base URI.
      Parameters:
      baseURI - the base URI, or null to remove current value
      Throws:
      IllegalArgumentException - if baseURI is not RFC 2396 compliant
      See Also:
      getBaseURI()

    • getKeySelector

      KeySelector getKeySelector()
      Returns the key selector for finding a key.
      Returns:
      the key selector, or null if not specified
      See Also:
      setKeySelector(KeySelector)

    • setKeySelector

      void setKeySelector​(KeySelector ks)
      Sets the key selector for finding a key.
      Parameters:
      ks - the key selector, or null to remove the current setting
      See Also:
      getKeySelector()

    • getURIDereferencer

      URIDereferencer getURIDereferencer()
      Returns a URIDereferencer that is used to dereference URIReferences.
      Returns:
      the URIDereferencer, or null if not specified
      See Also:
      setURIDereferencer(URIDereferencer)

    • setURIDereferencer

      void setURIDereferencer​(URIDereferencer dereferencer)
      Sets a URIDereferencer that is used to dereference URIReferences. The specified URIDereferencer is used in place of an implementation's default URIDereferencer.
      Parameters:
      dereferencer - the URIDereferencer, or null to remove any current setting
      See Also:
      getURIDereferencer()

    • getNamespacePrefix

      String getNamespacePrefix​(String namespaceURI, String defaultPrefix)
      Returns the namespace prefix that the specified namespace URI is associated with. Returns the specified default prefix if the specified namespace URI has not been bound to a prefix. To bind a namespace URI to a prefix, call the putNamespacePrefix method.
      Parameters:
      namespaceURI - a namespace URI
      defaultPrefix - the prefix to be returned in the event that the the specified namespace URI has not been bound to a prefix.
      Returns:
      the prefix that is associated with the specified namespace URI, or defaultPrefix if the URI is not registered. If the namespace URI is registered but has no prefix, an empty string ("") is returned.
      Throws:
      NullPointerException - if namespaceURI is null
      See Also:
      putNamespacePrefix(String, String)

    • putNamespacePrefix

      String putNamespacePrefix​(String namespaceURI, String prefix)
      Maps the specified namespace URI to the specified prefix. If there is already a prefix associated with the specified namespace URI, the old prefix is replaced by the specified prefix.
      Parameters:
      namespaceURI - a namespace URI
      prefix - a namespace prefix (or null to remove any existing mapping). Specifying the empty string ("") binds no prefix to the namespace URI.
      Returns:
      the previous prefix associated with the specified namespace URI, or null if there was none
      Throws:
      NullPointerException - if namespaceURI is null
      See Also:
      getNamespacePrefix(String, String)

    • getDefaultNamespacePrefix

      String getDefaultNamespacePrefix()
      Returns the default namespace prefix. The default namespace prefix is the prefix for all namespace URIs not explicitly set by the putNamespacePrefix method.
      Returns:
      the default namespace prefix, or null if none has been set.
      See Also:
      setDefaultNamespacePrefix(String)

    • setDefaultNamespacePrefix

      void setDefaultNamespacePrefix​(String defaultPrefix)
      Sets the default namespace prefix. This sets the namespace prefix for all namespace URIs not explicitly set by the putNamespacePrefix method.
      Parameters:
      defaultPrefix - the default namespace prefix, or null to remove the current setting. Specify the empty string ("") to bind no prefix.
      See Also:
      getDefaultNamespacePrefix()

    • setProperty

      Object setProperty​(String name, Object value)
      Sets the specified property.
      Parameters:
      name - the name of the property
      value - the value of the property to be set
      Returns:
      the previous value of the specified property, or null if it did not have a value
      Throws:
      NullPointerException - if name is null
      See Also:
      getProperty(String)

    • getProperty

      Object getProperty​(String name)
      Returns the value of the specified property.
      Parameters:
      name - the name of the property
      Returns:
      the current value of the specified property, or null if it does not have a value
      Throws:
      NullPointerException - if name is null
      See Also:
      setProperty(String, Object)

    • get

      Object get​(Object key)
      Returns the value to which this context maps the specified key.

      More formally, if this context contains a mapping from a key k to a value v such that (key==null ? k==null : key.equals(k)), then this method returns v; otherwise it returns null. (There can be at most one such mapping.)

      This method is useful for retrieving arbitrary information that is specific to the cryptographic operation that this context is used for.

      Parameters:
      key - the key whose associated value is to be returned
      Returns:
      the value to which this context maps the specified key, or null if there is no mapping for the key
      See Also:
      put(Object, Object)

    • put

      Object put​(Object key, Object value)
      Associates the specified value with the specified key in this context. If the context previously contained a mapping for this key, the old value is replaced by the specified value.

      This method is useful for storing arbitrary information that is specific to the cryptographic operation that this context is used for.

      Parameters:
      key - key with which the specified value is to be associated with
      value - value to be associated with the specified key
      Returns:
      the previous value associated with the key, or null if there was no mapping for the key
      Throws:
      IllegalArgumentException - if some aspect of this key or value prevents it from being stored in this context
      See Also:
      get(Object)