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

Enum Quota

java.lang.Object

java.lang.Enum<Quota>

org.apache.hadoop.hdfs.server.namenode.Quota

All Implemented Interfaces:

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

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

Quota types.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Quota.Counts	Counters for quota counts.

Enum Constant Summary

Enum Constants

Enum Constant	Description
NAMESPACE	The namespace usage, i.e.
STORAGESPACE	The storage space usage in bytes including replication.

Method Summary

Modifier and Type	Method	Description
static boolean	isViolated(long quota, long usage)	Is quota violated? The quota is violated if quota is set and usage > quota.
static Quota	valueOf(java.lang.String name)	Returns the enum constant of this type with the specified name.
static Quota[]	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

NAMESPACE

public static final Quota NAMESPACE

The namespace usage, i.e. the number of name objects.

STORAGESPACE

public static final Quota STORAGESPACE

The storage space usage in bytes including replication.

Method Detail

values

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

Returns:

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

valueOf

public static Quota 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

isViolated

public static boolean isViolated(long quota,
                                 long usage)

Is quota violated? The quota is violated if quota is set and usage > quota.