org.eigenbase.sarg
Enum SargSetOperator

java.lang.Object
  java.lang.Enum<SargSetOperator>
      org.eigenbase.sarg.SargSetOperator

All Implemented Interfaces:

Serializable, Comparable<SargSetOperator>

public enum SargSetOperator
extends Enum<SargSetOperator>

SargSetOperator defines the supported set operators which can be used to combine instances of SargExpr.

Version:

$Id: //open/dev/farrago/src/org/eigenbase/sarg/SargSetOperator.java#8 $

Author:

John V. Sichi

Enum Constant Summary

COMPLEMENT
Set complement over exactly one child.

INTERSECTION
Set intersection over any number of children (no children => universal set).

UNION
Set union over any number of children (no children => empty set).

Method Summary

static SargSetOperator	valueOf(String name) Returns the enum constant of this type with the specified name.
static SargSetOperator[]	values() Returns an array containing the constants of this enum type, in the order they're declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

INTERSECTION

public static final SargSetOperator INTERSECTION

Set intersection over any number of children (no children => universal set).

UNION

public static final SargSetOperator UNION

Set union over any number of children (no children => empty set).

COMPLEMENT

public static final SargSetOperator COMPLEMENT

Set complement over exactly one child.

Method Detail

values

public static final SargSetOperator[] values()

Returns an array containing the constants of this enum type, in the order they're declared. This method may be used to iterate over the constants as follows:

for(SargSetOperator c : SargSetOperator.values())
        System.out.println(c);

Returns:

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

valueOf

public static SargSetOperator 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