Package org.apache.hadoop.hdfs.protocol

Class EncryptionZoneIterator

java.lang.Object

org.apache.hadoop.fs.BatchedRemoteIterator<java.lang.Long,EncryptionZone>

org.apache.hadoop.hdfs.protocol.EncryptionZoneIterator

All Implemented Interfaces:

org.apache.hadoop.fs.RemoteIterator<EncryptionZone>

@Private
@Evolving
public class EncryptionZoneIterator
extends org.apache.hadoop.fs.BatchedRemoteIterator<java.lang.Long,EncryptionZone>

EncryptionZoneIterator is a remote iterator that iterates over encryption zones. It supports retrying in case of namenode failover.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.fs.BatchedRemoteIterator

org.apache.hadoop.fs.BatchedRemoteIterator.BatchedEntries<E extends java.lang.Object>, org.apache.hadoop.fs.BatchedRemoteIterator.BatchedListEntries<E extends java.lang.Object>

Constructor Summary

Constructors

Constructor	Description
EncryptionZoneIterator(ClientProtocol namenode, org.apache.hadoop.tracing.Tracer tracer)

Method Summary

Modifier and Type	Method	Description
java.lang.Long	elementToPrevKey(EncryptionZone entry)
org.apache.hadoop.fs.BatchedRemoteIterator.BatchedEntries<EncryptionZone>	makeRequest(java.lang.Long prevId)

Methods inherited from class org.apache.hadoop.fs.BatchedRemoteIterator

hasNext, next

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EncryptionZoneIterator

public EncryptionZoneIterator(ClientProtocol namenode,
                              org.apache.hadoop.tracing.Tracer tracer)

Method Detail

makeRequest

public org.apache.hadoop.fs.BatchedRemoteIterator.BatchedEntries<EncryptionZone> makeRequest(java.lang.Long prevId)
                                                                                      throws java.io.IOException

Specified by:

makeRequest in class org.apache.hadoop.fs.BatchedRemoteIterator<java.lang.Long,EncryptionZone>

Throws:

java.io.IOException

elementToPrevKey

public java.lang.Long elementToPrevKey(EncryptionZone entry)

Specified by:

elementToPrevKey in class org.apache.hadoop.fs.BatchedRemoteIterator<java.lang.Long,EncryptionZone>