org.apache.calcite.sql

Enum JoinType

java.lang.Object

java.lang.Enum<JoinType>

org.apache.calcite.sql.JoinType

All Implemented Interfaces:

Serializable, Comparable<JoinType>, SqlLiteral.SqlSymbol

public enum JoinType
extends Enum<JoinType>
implements SqlLiteral.SqlSymbol

Enumerates the types of join.

Enum Constant Summary

Enum Constants

Enum Constant and Description
COMMA Comma join: the good old-fashioned SQL FROM clause, where table expressions are specified with commas between them, and join conditions are specified in the WHERE clause.
CROSS Cross join (also known as Cartesian product).
FULL Full outer join.
INNER Inner join.
LEFT Left outer join.
RIGHT Right outer join.

Method Summary

Methods

Modifier and Type	Method and Description
SqlLiteral	symbol(SqlParserPos pos) Creates a parse-tree node representing an occurrence of this condition type keyword at a particular position in the parsed text.
static JoinType	valueOf(String name) Returns the enum constant of this type with the specified name.
static JoinType[]	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

Methods inherited from interface org.apache.calcite.sql.SqlLiteral.SqlSymbol

name, ordinal

Enum Constant Detail

INNER

public static final JoinType INNER

Inner join.

FULL

public static final JoinType FULL

Full outer join.

CROSS

public static final JoinType CROSS

Cross join (also known as Cartesian product).

LEFT

public static final JoinType LEFT

Left outer join.

RIGHT

public static final JoinType RIGHT

Right outer join.

COMMA

public static final JoinType COMMA

Comma join: the good old-fashioned SQL FROM clause, where table expressions are specified with commas between them, and join conditions are specified in the WHERE clause.

Method Detail

values

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

Returns:

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

valueOf

public static JoinType 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

symbol

public SqlLiteral symbol(SqlParserPos pos)

Creates a parse-tree node representing an occurrence of this condition type keyword at a particular position in the parsed text.