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

Class BaseFirstOrderFunctionCall.EagerPartlyBagEval<RETURN_T extends Value,PRIMITIVE_PARAM_T extends AttributeValue>

java.lang.Object

org.ow2.authzforce.core.pdp.api.func.BaseFirstOrderFunctionCall<RETURN_T>

org.ow2.authzforce.core.pdp.api.func.BaseFirstOrderFunctionCall.EagerEval<RETURN_T>

org.ow2.authzforce.core.pdp.api.func.BaseFirstOrderFunctionCall.EagerPartlyBagEval<RETURN_T,PRIMITIVE_PARAM_T>

Type Parameters:

RETURN_T - function return type

PRIMITIVE_PARAM_T - primitive values' supertype, i.e. bag element type for bag parameter and the parameter datatype for primitive parameters. If argument expressions return different datatypes, the supertype of all - AttributeValue - may be specified.

All Implemented Interfaces:

FirstOrderFunctionCall<RETURN_T>, FunctionCall<RETURN_T>

Enclosing class:

BaseFirstOrderFunctionCall<RETURN extends Value>

public abstract static class BaseFirstOrderFunctionCall.EagerPartlyBagEval<RETURN_T extends Value,PRIMITIVE_PARAM_T extends AttributeValue>
extends BaseFirstOrderFunctionCall.EagerEval<RETURN_T>

Function call, for functions requiring eager (a.k.a. greedy) evaluation of ALL their arguments' expressions to actual values, before the function can be evaluated. To be used only if there is a mix of primitive and bag arguments.

Nested Class Summary

Nested classes/interfaces inherited from class org.ow2.authzforce.core.pdp.api.func.BaseFirstOrderFunctionCall

BaseFirstOrderFunctionCall.EagerBagEval<RETURN_T extends Value,PARAM_BAG_ELEMENT_T extends AttributeValue>, BaseFirstOrderFunctionCall.EagerEval<RETURN_T extends Value>, BaseFirstOrderFunctionCall.EagerMultiPrimitiveTypeEval<RETURN_T extends Value>, BaseFirstOrderFunctionCall.EagerPartlyBagEval<RETURN_T extends Value,PRIMITIVE_PARAM_T extends AttributeValue>, BaseFirstOrderFunctionCall.EagerSinglePrimitiveTypeEval<RETURN_T extends Value,PARAM_T extends AttributeValue>

Field Summary

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

argExpressions, functionId, indeterminateArgMessage, numOfSameTypePrimitiveParamsBeforeBag, totalArgCount

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	EagerPartlyBagEval(FirstOrderFunctionSignature<RETURN_T> functionSig, BagDatatype<PRIMITIVE_PARAM_T> bagParamType, Class<PRIMITIVE_PARAM_T[]> primitiveArrayClass, List<Expression<?>> args, Datatype<?>[] remainingArgTypes)

Method Summary

Modifier and Type	Method and Description
protected abstract RETURN_T	evaluate(Deque<PRIMITIVE_PARAM_T> primArgsBeforeBag, Bag<PRIMITIVE_PARAM_T>[] bagArgs, PRIMITIVE_PARAM_T[] remainingArgs) Make the call with attribute values as arguments.
RETURN_T	evaluate(EvaluationContext context, AttributeValue... remainingArgs) Make the call in a given evaluation context and argument values resolved at evaluation time.

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

evaluate, evaluate, getReturnType

Methods inherited from class java.lang.Object

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

Constructor Detail

EagerPartlyBagEval

protected EagerPartlyBagEval(FirstOrderFunctionSignature<RETURN_T> functionSig,
                             BagDatatype<PRIMITIVE_PARAM_T> bagParamType,
                             Class<PRIMITIVE_PARAM_T[]> primitiveArrayClass,
                             List<Expression<?>> args,
                             Datatype<?>[] remainingArgTypes)
                      throws IllegalArgumentException

Throws:

IllegalArgumentException

Method Detail

evaluate

protected abstract RETURN_T evaluate(Deque<PRIMITIVE_PARAM_T> primArgsBeforeBag,
                                     Bag<PRIMITIVE_PARAM_T>[] bagArgs,
                                     PRIMITIVE_PARAM_T[] remainingArgs)
                              throws IndeterminateEvaluationException

Make the call with attribute values as arguments. (The pre-evaluation of argument expressions in the evaluation context is already handled internally by this class.)

Returns:

result of the call

Throws:

IndeterminateEvaluationException - if any error evaluating the function

evaluate

public final RETURN_T evaluate(EvaluationContext context,
                               AttributeValue... remainingArgs)
                        throws IndeterminateEvaluationException

Description copied from interface: FirstOrderFunctionCall

Make the call in a given evaluation context and argument values resolved at evaluation time. This method is called by FirstOrderFunctionCall.evaluate(EvaluationContext, boolean, AttributeValue...) after checking evaluation-time args.

Parameters:

context - evaluation context

remainingArgs - remaining args (not yet known at initialization time). Null if none. Only non-bag/primitive values are valid remainingArgs to prevent varargs warning in FirstOrderFunctionCall.evaluate(EvaluationContext, AttributeValue...) (potential heap pollution via varargs parameter) that would be caused by using a parameterized type such as Value/Collection to represent both bags and primitives.

Returns:

result of the call

Throws:

IndeterminateEvaluationException - if any error evaluating the function