org.apache.accumulo.server.master.state
Class TabletStateChangeIterator

java.lang.Object
  extended by org.apache.accumulo.core.iterators.WrappingIterator
      extended by org.apache.accumulo.core.iterators.SkippingIterator
          extended by org.apache.accumulo.server.master.state.TabletStateChangeIterator
All Implemented Interfaces:
SortedKeyValueIterator<Key,Value>

public class TabletStateChangeIterator
extends SkippingIterator


Constructor Summary
TabletStateChangeIterator()
           
 
Method Summary
protected  void consume()
           
 SortedKeyValueIterator<Key,Value> deepCopy(IteratorEnvironment env)
          Creates a deep copy of this iterator as though seek had not yet been called.
 void init(SortedKeyValueIterator<Key,Value> source, Map<String,String> options, IteratorEnvironment env)
          Initializes the iterator.
static void setCurrentServers(IteratorSetting cfg, Set<TServerInstance> goodServers)
           
static void setMerges(IteratorSetting cfg, Collection<MergeInfo> merges)
           
static void setOnlineTables(IteratorSetting cfg, Set<String> onlineTables)
           
 
Methods inherited from class org.apache.accumulo.core.iterators.SkippingIterator
next, seek
 
Methods inherited from class org.apache.accumulo.core.iterators.WrappingIterator
getSource, getTopKey, getTopValue, hasTop, setSource
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

TabletStateChangeIterator

public TabletStateChangeIterator()
Method Detail

init

public void init(SortedKeyValueIterator<Key,Value> source,
                 Map<String,String> options,
                 IteratorEnvironment env)
          throws IOException
Description copied from interface: SortedKeyValueIterator
Initializes the iterator. Data should not be read from the source in this method.

Specified by:
init in interface SortedKeyValueIterator<Key,Value>
Overrides:
init in class WrappingIterator
Parameters:
source - SortedKeyValueIterator source to read data from.
options - Map map of string option names to option values.
env - IteratorEnvironment environment in which iterator is being run.
Throws:
IOException - unused.

consume

protected void consume()
                throws IOException
Specified by:
consume in class SkippingIterator
Throws:
IOException

deepCopy

public SortedKeyValueIterator<Key,Value> deepCopy(IteratorEnvironment env)
Description copied from interface: SortedKeyValueIterator
Creates a deep copy of this iterator as though seek had not yet been called. init should be called on an iterator before deepCopy is called. init should not need to be called on the copy that is returned by deepCopy; that is, when necessary init should be called in the deepCopy method on the iterator it returns. The behavior is unspecified if init is called after deepCopy either on the original or the copy.

Specified by:
deepCopy in interface SortedKeyValueIterator<Key,Value>
Overrides:
deepCopy in class WrappingIterator
Parameters:
env - IteratorEnvironment environment in which iterator is being run.
Returns:
SortedKeyValueIterator a copy of this iterator (with the same source and settings).

setCurrentServers

public static void setCurrentServers(IteratorSetting cfg,
                                     Set<TServerInstance> goodServers)

setOnlineTables

public static void setOnlineTables(IteratorSetting cfg,
                                   Set<String> onlineTables)

setMerges

public static void setMerges(IteratorSetting cfg,
                             Collection<MergeInfo> merges)


Copyright © 2013 Apache Accumulo Project. All Rights Reserved.