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oracle.security.jps.service.policystore.info
Class RuleExpressionEntry<ReturnType extends DataType>

java.lang.Object
oracle.security.jps.service.policystore.info.RuleExpressionEntry<ReturnType>

Type Parameters:

ReturnType -

Direct Known Subclasses:

BooleanExpressionEntry

public abstract class RuleExpressionEntry<ReturnType extends DataType>

extends java.lang.Object

The class represents the condition expression of a policy. Basically, an expression consists of three parts, 1. Function 2. Parameters 3. Return Type A sample code is shown below to demonstrate how to construct a RuleExpression object

        // define a policy condition, (a = 1) and (b != "abc")
        ExtensionManager xMgr = ap.getExtensionManager();
        AttributeEntry<OpssInteger> a = xMgr.createAttribute("a", "display name", "description", OpssInteger.class, AttributeCategory.DYNAMIC, true);
        AttributeEntry<OpssString> b = xMgr.createAttribute("b", "display name", "description", OpssString.class, AttributeCategory.DYNAMIC, true);
        FunctionEntry strEQ = xMgr.getFunction(RuleExpressionEntry.BuiltInFunctions.STRING_EQUAL.name());
        FunctionEntry intEQ = xMgr.getFunction(RuleExpressionEntry.BuiltInFunctions.INTEGER_EQUAL.name());
        FunctionEntry not = xMgr.getFunction(RuleExpressionEntry.BuiltInFunctions.NOT.name());
        FunctionEntry and = xMgr.getFunction(RuleExpressionEntry.BuiltInFunctions.AND.name());
        //build subexpressions: (a = 1), (b = "abc") and (!(b = "abc"))
        Expression expr1 = new Expression(intEq);
        expr1.addExpressionComponent(a);
        expr1.addExpressionComponent(new OpssInteger(1));

        Expression expr2 = new Expression(strEq);
        expr2.addExpressionComponent(b);
        expr2.addExpressionComponent(new OpssString("abc"));

        Expression expr3 = new Expression(not);
        expr3.addExpressionComponent(expr2);

        Expression expr = new FunctionEntry(and);
        expr.addExpressionComponent(expr1);
        expr.addExpressionComponent(expr3);


        BooleanExpressionEntry<OpssBoolean> condition = new BooleanExpressionEntry<OpssBoolean>(expr);
 

Nested Class Summary

static class	RuleExpressionEntry.AttributeDefinitionHolder
static class	RuleExpressionEntry.BuiltInAttributes
static class	RuleExpressionEntry.BuiltInFunctions Built-in functions supported in OPSS MAPI.
static class	RuleExpressionEntry.FunctionCategory Categories of functions.

Field Summary

static java.util.Map<RuleExpressionEntry.BuiltInAttributes,RuleExpressionEntry.AttributeDefinitionHolder>	BUILT_IN_ATTRIBUTE_DEFINTION
static java.util.Map<RuleExpressionEntry.BuiltInFunctions,java.lang.Class<?>[]>	BUILT_IN_FUNCTION_DEFINITION
static java.util.Map<RuleExpressionEntry.BuiltInFunctions,VarArgsInfo>	BUILT_IN_FUNCTION_VAR_ARGS

Constructor Summary

RuleExpressionEntry()

Method Summary

ExpressionComponent	getExpressionComp()
FunctionEntry	getFunction()
static RuleExpressionEntry.FunctionCategory	getFunctionCategory(RuleExpressionEntry.BuiltInFunctions func) Returns the category of a built in function.
static java.lang.String	getOperator(RuleExpressionEntry.BuiltInFunctions func) Returns operator for the function if any, returns null otherwise.
Parameters	getParameters()
java.lang.String	toFreeFormString() Returns a free form string representing this expression, for example: func1(p,q + r) AND (!(func2(s))) = true
java.lang.String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

BUILT_IN_FUNCTION_DEFINITION

public static final java.util.Map<RuleExpressionEntry.BuiltInFunctions,java.lang.Class<?>[]> BUILT_IN_FUNCTION_DEFINITION

BUILT_IN_FUNCTION_VAR_ARGS

public static final java.util.Map<RuleExpressionEntry.BuiltInFunctions,VarArgsInfo> BUILT_IN_FUNCTION_VAR_ARGS

BUILT_IN_ATTRIBUTE_DEFINTION

public static java.util.Map<RuleExpressionEntry.BuiltInAttributes,RuleExpressionEntry.AttributeDefinitionHolder> BUILT_IN_ATTRIBUTE_DEFINTION

Constructor Detail

RuleExpressionEntry

public RuleExpressionEntry()

Method Detail

getParameters

public Parameters getParameters()

getExpressionComp

public ExpressionComponent getExpressionComp()

getFunction

public FunctionEntry getFunction()

getFunctionCategory

public static RuleExpressionEntry.FunctionCategory getFunctionCategory(RuleExpressionEntry.BuiltInFunctions func)

Returns the category of a built in function.

Parameters:

func -

getOperator

public static java.lang.String getOperator(RuleExpressionEntry.BuiltInFunctions func)

Returns operator for the function if any, returns null otherwise. For example, this method returns "=" for STRING_EQUAL function and "<" for TIME_LESS_THAN.

Parameters:

func -

toFreeFormString

public java.lang.String toFreeFormString()

Returns a free form string representing this expression, for example: func1(p,q + r) AND (!(func2(s))) = true

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

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