Enum ArithmeticOperator
- java.lang.Object
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- java.lang.Enum<ArithmeticOperator>
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- com.yahoo.searchlib.rankingexpression.rule.ArithmeticOperator
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- All Implemented Interfaces:
Serializable
,Comparable<ArithmeticOperator>
public enum ArithmeticOperator extends Enum<ArithmeticOperator>
A mathematical operator- Author:
- bratseth
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Field Summary
Fields Modifier and Type Field Description static List<ArithmeticOperator>
operatorsByPrecedence
A list of all the operators in this in order of decreasing precedence
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Method Summary
All Methods Static Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description abstract Value
evaluate(Value x, Value y)
boolean
hasPrecedenceOver(ArithmeticOperator op)
Returns true if this operator has precedence over the given operatorString
toString()
static ArithmeticOperator
valueOf(String name)
Returns the enum constant of this type with the specified name.static ArithmeticOperator[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
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Enum Constant Detail
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OR
public static final ArithmeticOperator OR
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AND
public static final ArithmeticOperator AND
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PLUS
public static final ArithmeticOperator PLUS
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MINUS
public static final ArithmeticOperator MINUS
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MULTIPLY
public static final ArithmeticOperator MULTIPLY
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DIVIDE
public static final ArithmeticOperator DIVIDE
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MODULO
public static final ArithmeticOperator MODULO
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POWER
public static final ArithmeticOperator POWER
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Field Detail
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operatorsByPrecedence
public static final List<ArithmeticOperator> operatorsByPrecedence
A list of all the operators in this in order of decreasing precedence
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Method Detail
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values
public static ArithmeticOperator[] 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 (ArithmeticOperator c : ArithmeticOperator.values()) System.out.println(c);
- Returns:
- an array containing the constants of this enum type, in the order they are declared
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valueOf
public static ArithmeticOperator 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 nameNullPointerException
- if the argument is null
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hasPrecedenceOver
public boolean hasPrecedenceOver(ArithmeticOperator op)
Returns true if this operator has precedence over the given operator
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toString
public String toString()
- Overrides:
toString
in classEnum<ArithmeticOperator>
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