com.alicloud.openservices.tablestore.model.search.query

枚举 FieldValueFactorFunction.FunctionModifier

java.lang.Object

java.lang.Enum<FieldValueFactorFunction.FunctionModifier>

com.alicloud.openservices.tablestore.model.search.query.FieldValueFactorFunction.FunctionModifier

所有已实现的接口:

Serializable, Comparable<FieldValueFactorFunction.FunctionModifier>

封闭类:

FieldValueFactorFunction

public static enum FieldValueFactorFunction.FunctionModifier
extends Enum<FieldValueFactorFunction.FunctionModifier>

枚举常量概要

枚举常量

枚举常量和说明
LN Perform natural logarithm operation
LN1P Take the natural logarithm after adding 1 to the argument, to prevent the argument from being 0
LN2P Add 2 to the logarithm and then take the natural logarithm with base e to prevent the logarithm from being 0
LOG Perform logarithmic calculation with base 10
LOG1P Take the base-10 logarithm after adding 1 to the actual value to prevent it from being 0.
LOG2P Take the logarithm with base 10 after adding 2 to the true number to prevent the true number from being 0.
NONE No additional operations
RECIPROCAL Reciprocal operation
SQRT Square root operation
SQUARE Square operation
UNKNOWN

方法概要

限定符和类型	方法和说明
static FieldValueFactorFunction.FunctionModifier	valueOf(String name) 返回带有指定名称的该类型的枚举常量。
static FieldValueFactorFunction.FunctionModifier[]	values() 按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。

从类继承的方法 java.lang.Enum

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

从类继承的方法 java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

枚举常量详细资料

UNKNOWN

public static final FieldValueFactorFunction.FunctionModifier UNKNOWN

NONE

public static final FieldValueFactorFunction.FunctionModifier NONE

No additional operations

LOG

public static final FieldValueFactorFunction.FunctionModifier LOG

Perform logarithmic calculation with base 10

LOG1P

public static final FieldValueFactorFunction.FunctionModifier LOG1P

Take the base-10 logarithm after adding 1 to the actual value to prevent it from being 0.

LOG2P

public static final FieldValueFactorFunction.FunctionModifier LOG2P

Take the logarithm with base 10 after adding 2 to the true number to prevent the true number from being 0.

LN

public static final FieldValueFactorFunction.FunctionModifier LN

Perform natural logarithm operation

LN1P

public static final FieldValueFactorFunction.FunctionModifier LN1P

Take the natural logarithm after adding 1 to the argument, to prevent the argument from being 0

LN2P

public static final FieldValueFactorFunction.FunctionModifier LN2P

Add 2 to the logarithm and then take the natural logarithm with base e to prevent the logarithm from being 0

SQUARE

public static final FieldValueFactorFunction.FunctionModifier SQUARE

Square operation

SQRT

public static final FieldValueFactorFunction.FunctionModifier SQRT

Square root operation

RECIPROCAL

public static final FieldValueFactorFunction.FunctionModifier RECIPROCAL

Reciprocal operation

方法详细资料

values

public static FieldValueFactorFunction.FunctionModifier[] values()

按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。该方法可用于迭代 常量, 如下所示:

for (FieldValueFactorFunction.FunctionModifier c : FieldValueFactorFunction.FunctionModifier.values())
    System.out.println(c);

返回:

按照声明该枚举类型的常量的顺序返回的包含这些常量的数组

valueOf

public static FieldValueFactorFunction.FunctionModifier valueOf(String name)

返回带有指定名称的该类型的枚举常量。 字符串必须与用于声明该类型的枚举常量的 标识符完全匹配。(不允许有多余 的空格字符。)

参数:

name - 要返回的枚举常量的名称。

返回:

返回带有指定名称的枚举常量

抛出:

IllegalArgumentException - 如果该枚举类型没有带有指定名称的常量

NullPointerException - 如果参数为空值