org.apache.hadoop.hive.ql.parse

Enum Quotation

java.lang.Object

java.lang.Enum<Quotation>

org.apache.hadoop.hive.ql.parse.Quotation

All Implemented Interfaces:

Serializable, Comparable<Quotation>

public enum Quotation
extends Enum<Quotation>

Identifier quotation.

See Also:

HiveConf.ConfVars#HIVE_QUOTEDID_SUPPORT

Enum Constant Summary

Enum Constants

Enum Constant and Description
BACKTICKS Use the backtick character to quote identifiers having special characters.
NONE Quotation of identifiers and special characters in identifiers are not allowed.
STANDARD SQL standard way to quote identifiers.

Method Summary

Modifier and Type	Method and Description
static Quotation	from(org.apache.hadoop.conf.Configuration configuration)
String	stringValue()
static Quotation	valueOf(String name) Returns the enum constant of this type with the specified name.
static Quotation[]	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

NONE

public static final Quotation NONE

Quotation of identifiers and special characters in identifiers are not allowed. But regular expressions in backticks are supported for column names.

BACKTICKS

public static final Quotation BACKTICKS

Use the backtick character to quote identifiers having special characters. Use single quotes to quote string literals. Double quotes are also accepted but not recommended.

STANDARD

public static final Quotation STANDARD

SQL standard way to quote identifiers. Use double quotes to quote identifiers having special characters and single quotes for string literals.

Method Detail

values

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

Returns:

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

valueOf

public static Quotation 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

stringValue

public String stringValue()

from

public static Quotation from(org.apache.hadoop.conf.Configuration configuration)