Package com.yahoo.searchlib.rankingexpression.rule

Enum TruthOperator

java.lang.Object

java.lang.Enum<TruthOperator>

com.yahoo.searchlib.rankingexpression.rule.TruthOperator

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<TruthOperator>

public enum TruthOperator
extends java.lang.Enum<TruthOperator>
implements java.io.Serializable

A mathematical operator

Author:

bratseth

Enum Constant Summary

Enum Constants

Enum Constant	Description
APPROX_EQUAL
EQUAL
LARGER
LARGEREQUAL
NOTEQUAL
SMALLER
SMALLEREQUAL

Method Summary

Modifier and Type	Method	Description
abstract boolean	evaluate(double x, double y)	Perform the truth operation on the input
static TruthOperator	fromString(java.lang.String string)
java.lang.String	toString()
static TruthOperator	valueOf(java.lang.String name)	Returns the enum constant of this type with the specified name.
static TruthOperator[]	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, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

SMALLER

public static final TruthOperator SMALLER

SMALLEREQUAL

public static final TruthOperator SMALLEREQUAL

EQUAL

public static final TruthOperator EQUAL

APPROX_EQUAL

public static final TruthOperator APPROX_EQUAL

LARGER

public static final TruthOperator LARGER

LARGEREQUAL

public static final TruthOperator LARGEREQUAL

NOTEQUAL

public static final TruthOperator NOTEQUAL

Method Detail

values

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

Returns:

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

valueOf

public static TruthOperator valueOf(java.lang.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:

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

java.lang.NullPointerException - if the argument is null

evaluate

public abstract boolean evaluate(double x,
                                 double y)

Perform the truth operation on the input

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Enum<TruthOperator>

fromString

public static TruthOperator fromString(java.lang.String string)