org.sql.generation.api.grammar.query
Enum SetOperation

java.lang.Object
  java.lang.Enum<SetOperation>
      org.sql.generation.api.grammar.query.SetOperation

All Implemented Interfaces:

Serializable, Comparable<SetOperation>

public enum SetOperation
extends Enum<SetOperation>

This enum represents the possible set operations to combine queries with. These set operations are UNION, INTERSECT, and EXCEPT.

Author:

Stanislav Muhametsin

Enum Constant Summary

EXCEPT
The set difference (EXCEPT) between two queries.

INTERSECT
The INTERSECT between two queries.

UNION
The UNION between two queries.

Method Summary

static SetOperation	valueOf(String name) Returns the enum constant of this type with the specified name.
static SetOperation[]	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, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

UNION

public static final SetOperation UNION

The UNION between two queries.

INTERSECT

public static final SetOperation INTERSECT

The INTERSECT between two queries.

EXCEPT

public static final SetOperation EXCEPT

The set difference (EXCEPT) between two queries.

Method Detail

values

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

Returns:

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

valueOf

public static SetOperation 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

NullPointerException - if the argument is null