org.nhindirect.policy

Enum PolicyExpressionType

java.lang.Object

java.lang.Enum<PolicyExpressionType>

org.nhindirect.policy.PolicyExpressionType

All Implemented Interfaces:

Serializable, Comparable<PolicyExpressionType>

public enum PolicyExpressionType
extends Enum<PolicyExpressionType>

Enumeration defining the types of expressions.

Since:

1.0

Author:

Greg Meyer

Enum Constant Summary

Enum Constants

Enum Constant and Description
LITERAL A literal expression.
OPERATION Operations are a combination of a PolicyOperator and one or more parameters.
REFERENCE References are objects whose values are evaluated at runtime similar to variables.

Method Summary

Methods

Modifier and Type	Method and Description
static PolicyExpressionType	valueOf(String name) Returns the enum constant of this type with the specified name.
static PolicyExpressionType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

LITERAL

public static final PolicyExpressionType LITERAL

A literal expression. Literals are simply primitive types or objects that have a static value. In the policy engine, literals are represented by PolicyValue objects.

REFERENCE

public static final PolicyExpressionType REFERENCE

References are objects whose values are evaluated at runtime similar to variables. Reference may be simple structures or specific structure types such as X509 certificates.

OPERATION

public static final PolicyExpressionType OPERATION

Operations are a combination of a PolicyOperator and one or more parameters. Operator parameters are themselves expressions allowing parameters to be either literals, references, or the result of another operation.

Method Detail

values

public static PolicyExpressionType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (PolicyExpressionType c : PolicyExpressionType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static PolicyExpressionType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null