org.apache.flink.sql.parser.ddl.constraint

Enum SqlUniqueSpec

java.lang.Object

java.lang.Enum<SqlUniqueSpec>

org.apache.flink.sql.parser.ddl.constraint.SqlUniqueSpec

All Implemented Interfaces:

Serializable, Comparable<SqlUniqueSpec>

public enum SqlUniqueSpec
extends Enum<SqlUniqueSpec>

Enumeration of SQL unique specification.

Enum Constant Summary

Enum Constants

Enum Constant and Description
PRIMARY_KEY
UNIQUE

Method Summary

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

PRIMARY_KEY

public static final SqlUniqueSpec PRIMARY_KEY

UNIQUE

public static final SqlUniqueSpec UNIQUE

Method Detail

values

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

Returns:

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

valueOf

public static SqlUniqueSpec 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

toString

public String toString()

Overrides:

toString in class Enum<SqlUniqueSpec>

symbol

public org.apache.calcite.sql.SqlLiteral symbol(org.apache.calcite.sql.parser.SqlParserPos pos)

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