Package org.apache.calcite.sql

Enum JoinConditionType

java.lang.Object

java.lang.Enum<JoinConditionType>

org.apache.calcite.sql.JoinConditionType

All Implemented Interfaces:

Serializable, Comparable<JoinConditionType>, Constable, Symbolizable

public enum JoinConditionType
extends Enum<JoinConditionType>
implements Symbolizable

Enumerates the types of condition in a join expression.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
NONE	Join clause has no condition, for example "FROM EMP, DEPT".
ON	Join clause has an ON condition, for example "FROM EMP JOIN DEPT ON EMP.DEPTNO = DEPT.DEPTNO".
USING	Join clause has a USING condition, for example "FROM EMP JOIN DEPT USING (DEPTNO)".

Method Summary

Modifier and Type	Method	Description
static JoinConditionType	valueOf(String name)	Returns the enum constant of this type with the specified name.
static JoinConditionType[]	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, describeConstable, 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.Symbolizable

symbol

Enum Constant Details

NONE

public static final JoinConditionType NONE

Join clause has no condition, for example "FROM EMP, DEPT".

ON

public static final JoinConditionType ON

Join clause has an ON condition, for example "FROM EMP JOIN DEPT ON EMP.DEPTNO = DEPT.DEPTNO".

USING

public static final JoinConditionType USING

Join clause has a USING condition, for example "FROM EMP JOIN DEPT USING (DEPTNO)".

Method Details

values

public static JoinConditionType[] values()

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

Returns:

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

valueOf

public static JoinConditionType 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