simpledb

Enum Aggregator.Op

java.lang.Object

java.lang.Enum<Aggregator.Op>

simpledb.Aggregator.Op

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<Aggregator.Op>

Enclosing interface:

Aggregator

public static enum Aggregator.Op
extends java.lang.Enum<Aggregator.Op>
implements java.io.Serializable

Enum Constant Summary

Enum Constants

Enum Constant and Description
AVG
COUNT
MAX
MIN
SUM

Method Summary

Modifier and Type	Method and Description
static Aggregator.Op	getOp(int i) Interface to access operations by integer value for command-line convenience.
static Aggregator.Op	getOp(java.lang.String s) Interface to access operations by a string containing an integer index for command-line convenience.
java.lang.String	toString()
static Aggregator.Op	valueOf(java.lang.String name) Returns the enum constant of this type with the specified name.
static Aggregator.Op[]	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

MIN

public static final Aggregator.Op MIN

MAX

public static final Aggregator.Op MAX

SUM

public static final Aggregator.Op SUM

AVG

public static final Aggregator.Op AVG

COUNT

public static final Aggregator.Op COUNT

Method Detail

values

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

Returns:

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

valueOf

public static Aggregator.Op 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

getOp

public static Aggregator.Op getOp(java.lang.String s)

Interface to access operations by a string containing an integer index for command-line convenience.

Parameters:

s - a string containing a valid integer Op index

getOp

public static Aggregator.Op getOp(int i)

Interface to access operations by integer value for command-line convenience.

Parameters:

i - a valid integer Op index

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Enum<Aggregator.Op>