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com.sun.xacml.cond
Class BaseFunctionFactory  

java.lang.Object
  com.sun.xacml.cond.FunctionFactory
      com.sun.xacml.cond.BaseFunctionFactory

Direct Known Subclasses:

StandardFunctionFactory

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public class BaseFunctionFactory

extends FunctionFactory

This is a basic implementation of FunctionFactory. It implements the insertion and retrieval methods, but it doesn't actually setup the factory with any functions. It also assumes a certain model with regard to the different kinds of functions (Target, Condition, and General). For this reason, you may want to re-use this class, or you may want to extend FunctionFactory directly, if you're writing a new factory implementation.

Note that while this class is thread-safe on all creation methods, it is not safe to add support for a new function while creating an instance of a function. This follows from the assumption that most people will initialize these factories up-front, and then start processing without ever modifying the factories. If you need these mutual operations to be thread-safe, then you should write a wrapper class that implements the right synchronization.

Since:

1.2

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Field Summary
private  java.util.HashMap	functionMap
private  FunctionFactory	superset

 

Fields inherited from class com.sun.xacml.cond.FunctionFactory

 

Constructor Summary

BaseFunctionFactory()           Default constructor.

BaseFunctionFactory(FunctionFactory superset)           Constructor that sets a "superset factory".

BaseFunctionFactory(FunctionFactory superset, java.util.Set supportedFunctions, java.util.Map supportedAbstractFunctions)           Constructor that defines the initial functions supported by this factory and uses a superset factory.

BaseFunctionFactory(java.util.Set supportedFunctions, java.util.Map supportedAbstractFunctions)           Constructor that defines the initial functions supported by this factory but doesn't use a superset factory.

 

Method Summary
void	addAbstractFunction(FunctionProxy proxy, java.net.URI identity)           Adds the abstract function proxy to the factory.
void	addFunction(Function function)           Adds the function to the factory.
Function	createAbstractFunction(java.lang.String identity, org.w3c.dom.Node root)           Tries to get an instance of the specified abstract function.
Function	createAbstractFunction(java.lang.String identity, org.w3c.dom.Node root, java.lang.String xpathVersion)           Tries to get an instance of the specified abstract function.
Function	createAbstractFunction(java.net.URI identity, org.w3c.dom.Node root)           Tries to get an instance of the specified abstract function.
Function	createAbstractFunction(java.net.URI identity, org.w3c.dom.Node root, java.lang.String xpathVersion)           Tries to get an instance of the specified abstract function.
Function	createFunction(java.lang.String identity)           Tries to get an instance of the specified function.
Function	createFunction(java.net.URI identity)           Tries to get an instance of the specified function.
java.util.Set	getSupportedFunctions()           Returns the function identifiers supported by this factory.

 

Methods inherited from class com.sun.xacml.cond.FunctionFactory

addAbstractConditionFunction, addAbstractGeneralFunction, addAbstractTargetFunction, addConditionFunction, addGeneralFunction, addTargetFunction, getConditionInstance, getGeneralInstance, getTargetInstance, setDefaultFactory

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

functionMap

private java.util.HashMap functionMap

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superset

private FunctionFactory superset

Constructor Detail

BaseFunctionFactory

public BaseFunctionFactory()

Default constructor. No superset factory is used.

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BaseFunctionFactory

public BaseFunctionFactory(FunctionFactory superset)

Constructor that sets a "superset factory". This is useful since the different function factories (Target, Condition, and General) have a superset relationship (Condition functions are a superset of Target functions, etc.). Adding a function to this factory will automatically add the same function to the superset factory.

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BaseFunctionFactory

public BaseFunctionFactory(java.util.Set supportedFunctions,
                           java.util.Map supportedAbstractFunctions)

Constructor that defines the initial functions supported by this factory but doesn't use a superset factory.

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BaseFunctionFactory

public BaseFunctionFactory(FunctionFactory superset,
                           java.util.Set supportedFunctions,
                           java.util.Map supportedAbstractFunctions)

Constructor that defines the initial functions supported by this factory and uses a superset factory. Note that the functions supplied here are not propagated up to the superset factory, so you must either make sure the superst factory is correctly initialized or use BaseFunctionFactory(FunctionFactory) and then manually add each function.

Method Detail

addFunction

public void addFunction(Function function)
                 throws java.lang.IllegalArgumentException

Adds the function to the factory. Most functions have no state, so the singleton model used here is typically desireable. The factory will not enforce the requirement that a Target or Condition matching function must be boolean.

Specified by:

addFunction in class FunctionFactory

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addAbstractFunction

public void addAbstractFunction(FunctionProxy proxy,
                                java.net.URI identity)
                         throws java.lang.IllegalArgumentException

Adds the abstract function proxy to the factory. This is used for those functions which have state, or change behavior (for instance the standard map function, which changes its return type based on how it is used).

Specified by:

addAbstractFunction in class FunctionFactory

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getSupportedFunctions

public java.util.Set getSupportedFunctions()

Returns the function identifiers supported by this factory.

Specified by:

getSupportedFunctions in class FunctionFactory

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createFunction

public Function createFunction(java.net.URI identity)
                        throws com.sun.xacml.UnknownIdentifierException,
                               FunctionTypeException

Tries to get an instance of the specified function.

Specified by:

createFunction in class FunctionFactory

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createFunction

public Function createFunction(java.lang.String identity)
                        throws com.sun.xacml.UnknownIdentifierException,
                               FunctionTypeException

Tries to get an instance of the specified function.

Specified by:

createFunction in class FunctionFactory

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createAbstractFunction

public Function createAbstractFunction(java.net.URI identity,
                                       org.w3c.dom.Node root)
                                throws com.sun.xacml.UnknownIdentifierException,
                                       com.sun.xacml.ParsingException,
                                       FunctionTypeException

Tries to get an instance of the specified abstract function.

Specified by:

createAbstractFunction in class FunctionFactory

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createAbstractFunction

public Function createAbstractFunction(java.net.URI identity,
                                       org.w3c.dom.Node root,
                                       java.lang.String xpathVersion)
                                throws com.sun.xacml.UnknownIdentifierException,
                                       com.sun.xacml.ParsingException,
                                       FunctionTypeException

Tries to get an instance of the specified abstract function.

Specified by:

createAbstractFunction in class FunctionFactory

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createAbstractFunction

public Function createAbstractFunction(java.lang.String identity,
                                       org.w3c.dom.Node root)
                                throws com.sun.xacml.UnknownIdentifierException,
                                       com.sun.xacml.ParsingException,
                                       FunctionTypeException

Tries to get an instance of the specified abstract function.

Specified by:

createAbstractFunction in class FunctionFactory

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createAbstractFunction

public Function createAbstractFunction(java.lang.String identity,
                                       org.w3c.dom.Node root,
                                       java.lang.String xpathVersion)
                                throws com.sun.xacml.UnknownIdentifierException,
                                       com.sun.xacml.ParsingException,
                                       FunctionTypeException

Tries to get an instance of the specified abstract function.

Specified by:

createAbstractFunction in class FunctionFactory

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Home >> All >> com >> sun >> xacml >> [ cond overview ]	PREV CLASS  NEXT CLASS
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