org.jboss.security.xacml.sunxacml.cond
Interface FunctionProxy
- All Known Implementing Classes:
- MapFunctionProxy
public interface FunctionProxy
Used by abstract functions to define how new functions are created by
the factory. Note that all functions using XPath are defined to be
abstract functions, so they must be created using this interface.
- Since:
- 1.0
- Author:
- Seth Proctor
getInstance
Function getInstance(Node root,
String xpathVersion)
throws Exception
- Creates an instance of some abstract function. If the function
being created is not using XPath, then the version parameter can be
ignored, otherwise a value must be present and the version must
be acceptable.
- Parameters:
root
- the DOM root of the apply statement containing the functionxpathVersion
- the version specified in the contianing policy, or
null if no version was specified
- Returns:
- the function
- Throws:
Exception
- if the underlying code experienced any error
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