Package org.apache.hadoop.hdfs.server.namenode

Enum SerialNumberManager

java.lang.Object

java.lang.Enum<SerialNumberManager>

org.apache.hadoop.hdfs.server.namenode.SerialNumberManager

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<SerialNumberManager>

public enum SerialNumberManager
extends java.lang.Enum<SerialNumberManager>

Manage name-to-serial-number maps for various string tables.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SerialNumberManager.StringTable

Enum Constant Summary

Enum Constants

Enum Constant	Description
GLOBAL
GROUP
USER
XATTR

Method Summary

Modifier and Type	Method	Description
int	getSerialNumber(java.lang.String u)
java.lang.String	getString(int id)
java.lang.String	getString(int id, SerialNumberManager.StringTable stringTable)
static SerialNumberManager.StringTable	getStringTable()
static SerialNumberManager.StringTable	newStringTable(int size, int bits)
static SerialNumberManager	valueOf(java.lang.String name)	Returns the enum constant of this type with the specified name.
static SerialNumberManager[]	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

GLOBAL

public static final SerialNumberManager GLOBAL

USER

public static final SerialNumberManager USER

GROUP

public static final SerialNumberManager GROUP

XATTR

public static final SerialNumberManager XATTR

Method Detail

values

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

Returns:

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

valueOf

public static SerialNumberManager valueOf(java.lang.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:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

getSerialNumber

public int getSerialNumber(java.lang.String u)

getString

public java.lang.String getString(int id)

getString

public java.lang.String getString(int id,
                                  SerialNumberManager.StringTable stringTable)

getStringTable

public static SerialNumberManager.StringTable getStringTable()

newStringTable

public static SerialNumberManager.StringTable newStringTable(int size,
                                                             int bits)