tk.pratanumandal.expr4j

Enum ExpressionEvaluator.Evaluator

java.lang.Object

java.lang.Enum<ExpressionEvaluator.Evaluator>

tk.pratanumandal.expr4j.ExpressionEvaluator.Evaluator

All Implemented Interfaces:

Serializable, Comparable<ExpressionEvaluator.Evaluator>

Enclosing class:

ExpressionEvaluator

public static enum ExpressionEvaluator.Evaluator
extends Enum<ExpressionEvaluator.Evaluator>

The Evaluator enum represents the Shunting Yard implementation to be used for evaluating expressions.
It can be of two types: DUAL_STACK, and EXPRESSION_TREE.

Since:

0.0.2

Author:

Pratanu Mandal

Enum Constant Summary

Enum Constants

Enum Constant and Description
DUAL_STACK Dual Stack implementation of the Shunting Yard algorithm.
EXPRESSION_TREE Expression Tree implementation of the Shunting Yard algorithm.

Method Summary

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

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

DUAL_STACK

public static final ExpressionEvaluator.Evaluator DUAL_STACK

Dual Stack implementation of the Shunting Yard algorithm.

EXPRESSION_TREE

public static final ExpressionEvaluator.Evaluator EXPRESSION_TREE

Expression Tree implementation of the Shunting Yard algorithm.

Method Detail

values

public static ExpressionEvaluator.Evaluator[] 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 (ExpressionEvaluator.Evaluator c : ExpressionEvaluator.Evaluator.values())
    System.out.println(c);

Returns:

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

valueOf

public static ExpressionEvaluator.Evaluator 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