public static enum NameNode.OperationCategory extends Enum<NameNode.OperationCategory>
Enum Constant and Description |
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CHECKPOINT
Operations related to checkpointing
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JOURNAL
Operations related to
JournalProtocol |
READ
Read operation that does not change the namespace state
|
UNCHECKED
Operations that are state agnostic
|
WRITE
Write operation that changes the namespace state
|
Modifier and Type | Method and Description |
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static NameNode.OperationCategory |
valueOf(String name)
Returns the enum constant of this type with the specified name.
|
static NameNode.OperationCategory[] |
values()
Returns an array containing the constants of this enum type, in
the order they are declared.
|
public static final NameNode.OperationCategory UNCHECKED
public static final NameNode.OperationCategory READ
public static final NameNode.OperationCategory WRITE
public static final NameNode.OperationCategory CHECKPOINT
public static final NameNode.OperationCategory JOURNAL
JournalProtocol
public static NameNode.OperationCategory[] values()
for (NameNode.OperationCategory c : NameNode.OperationCategory.values()) System.out.println(c);
public static NameNode.OperationCategory valueOf(String name)
name
- the name of the enum constant to be returned.IllegalArgumentException
- if this enum type has no constant with the specified nameNullPointerException
- if the argument is nullCopyright © 2018 Apache Software Foundation. All Rights Reserved.