Package org.ow2.authzforce.core.pdp.api.func

Class SingleParameterTypedFirstOrderFunctionSignature<RETURN extends Value,PARAM extends Value>

java.lang.Object

org.ow2.authzforce.core.pdp.api.func.FirstOrderFunctionSignature<RETURN>

org.ow2.authzforce.core.pdp.api.func.SingleParameterTypedFirstOrderFunctionSignature<RETURN,PARAM>

Type Parameters:

RETURN - function's return type

PARAM - common parameter type

public class SingleParameterTypedFirstOrderFunctionSignature<RETURN extends Value,PARAM extends Value>
extends FirstOrderFunctionSignature<RETURN>

First-order function signature having every parameter of the same datatype

Field Summary

Fields inherited from class org.ow2.authzforce.core.pdp.api.func.FirstOrderFunctionSignature

isVarArgs, name, returnType, UNDEF_PARAMETER_TYPES_EXCEPTION

Constructor Summary

Constructors

Constructor	Description
SingleParameterTypedFirstOrderFunctionSignature(String name, Datatype<RETURN> returnType, boolean varArgs, List<? extends Datatype<PARAM>> parameterTypes)	Creates function signature

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
Datatype<PARAM>	getParameterType()	Get single/common parameter datatype
List<? extends Datatype<?>>	getParameterTypes()	Get function parameter types
int	hashCode()

Methods inherited from class org.ow2.authzforce.core.pdp.api.func.FirstOrderFunctionSignature

getName, getReturnType, isVarArgs, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SingleParameterTypedFirstOrderFunctionSignature

public SingleParameterTypedFirstOrderFunctionSignature(String name,
                                                       Datatype<RETURN> returnType,
                                                       boolean varArgs,
                                                       List<? extends Datatype<PARAM>> parameterTypes)
                                                throws IllegalArgumentException

Creates function signature

Parameters:

name - function name (e.g. XACML-defined URI)

returnType - function's return type

parameterTypes - function parameter types. Note: the "? extends" allows using BagDatatype as parameterType

varArgs - true iff the function takes a variable number of arguments (like Java Method.isVarArgs(), i.e. the final type in paramTypes can be repeated 0 or more times to match a variable-length argument

Examples with varargs=true ('...' means varargs like in Java):

Example 1: string-concat(string, string, string...) -> paramTypes={string, string, string}

Example 2: or(boolean...) -> paramTypes={boolean} (As you can see, isVarargs=true really means 0 or more args; indeed, the or function can take 0 parameter according to spec)

Example 3: n-of(integer, boolean...) -> paramTypes={integer, boolean}

Throws:

IllegalArgumentException - if ( name == null || returnType == null || parameterTypes == null || parameterTypes.isEmpty())

Method Detail

getParameterType

public Datatype<PARAM> getParameterType()

Get single/common parameter datatype

Returns:

parameter datatype

getParameterTypes

public List<? extends Datatype<?>> getParameterTypes()

Get function parameter types

Specified by:

getParameterTypes in class FirstOrderFunctionSignature<RETURN extends Value>

Returns:

function parameter types

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object