org.apache.accumulo.core.iterators
Class IteratorUtil

java.lang.Object
  org.apache.accumulo.core.iterators.IteratorUtil

public class IteratorUtil
extends Object

Nested Class Summary

static class	IteratorUtil.IteratorScope
static class	IteratorUtil.IterInfoComparator

Constructor Summary

IteratorUtil()

Method Summary

static String	findIterator(IteratorUtil.IteratorScope scope, String className, AccumuloConfiguration conf, Map<String,String> opts)
static Map<String,String>	generateAggTableProperties(List<? extends PerColumnIteratorConfig> aggregators) Deprecated. since 1.4
static Map<String,String>	generateInitialTableProperties()
static int	getMaxPriority(IteratorUtil.IteratorScope scope, AccumuloConfiguration conf)
static <K extends org.apache.hadoop.io.WritableComparable<?>,V extends org.apache.hadoop.io.Writable> SortedKeyValueIterator<K,V>	loadIterators(IteratorUtil.IteratorScope scope, SortedKeyValueIterator<K,V> source, KeyExtent extent, AccumuloConfiguration conf, IteratorEnvironment env)
static <K extends org.apache.hadoop.io.WritableComparable<?>,V extends org.apache.hadoop.io.Writable> SortedKeyValueIterator<K,V>	loadIterators(IteratorUtil.IteratorScope scope, SortedKeyValueIterator<K,V> source, KeyExtent extent, AccumuloConfiguration conf, List<IterInfo> ssiList, Map<String,Map<String,String>> ssio, IteratorEnvironment env)
static <K extends org.apache.hadoop.io.WritableComparable<?>,V extends org.apache.hadoop.io.Writable> SortedKeyValueIterator<K,V>	loadIterators(IteratorUtil.IteratorScope scope, SortedKeyValueIterator<K,V> source, KeyExtent extent, AccumuloConfiguration conf, List<IterInfo> ssiList, Map<String,Map<String,String>> ssio, IteratorEnvironment env, boolean useAccumuloClassLoader)
static <K extends org.apache.hadoop.io.WritableComparable<?>,V extends org.apache.hadoop.io.Writable> SortedKeyValueIterator<K,V>	loadIterators(SortedKeyValueIterator<K,V> source, Collection<IterInfo> iters, Map<String,Map<String,String>> iterOpts, IteratorEnvironment env, boolean useAccumuloClassLoader)
static Range	maximizeStartKeyTimeStamp(Range range)
static Range	minimizeEndKeyTimeStamp(Range range)

Methods inherited from class java.lang.Object

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

Constructor Detail

IteratorUtil

public IteratorUtil()

Method Detail

generateAggTableProperties

public static Map<String,String> generateAggTableProperties(List<? extends PerColumnIteratorConfig> aggregators)

Deprecated. since 1.4

Parameters:

aggregators -

Returns:

A map of Aggregator Table Properties.

See Also:

TableOperations.attachIterator(String, IteratorSetting)

generateInitialTableProperties

public static Map<String,String> generateInitialTableProperties()

getMaxPriority

public static int getMaxPriority(IteratorUtil.IteratorScope scope,
                                 AccumuloConfiguration conf)

findIterator

public static String findIterator(IteratorUtil.IteratorScope scope,
                                  String className,
                                  AccumuloConfiguration conf,
                                  Map<String,String> opts)

loadIterators

public static <K extends org.apache.hadoop.io.WritableComparable<?>,V extends org.apache.hadoop.io.Writable> SortedKeyValueIterator<K,V> loadIterators(IteratorUtil.IteratorScope scope,
                                                                                                                                                       SortedKeyValueIterator<K,V> source,
                                                                                                                                                       KeyExtent extent,
                                                                                                                                                       AccumuloConfiguration conf,
                                                                                                                                                       IteratorEnvironment env)
                                                                                                                                          throws IOException

Throws:

IOException

loadIterators

public static <K extends org.apache.hadoop.io.WritableComparable<?>,V extends org.apache.hadoop.io.Writable> SortedKeyValueIterator<K,V> loadIterators(IteratorUtil.IteratorScope scope,
                                                                                                                                                       SortedKeyValueIterator<K,V> source,
                                                                                                                                                       KeyExtent extent,
                                                                                                                                                       AccumuloConfiguration conf,
                                                                                                                                                       List<IterInfo> ssiList,
                                                                                                                                                       Map<String,Map<String,String>> ssio,
                                                                                                                                                       IteratorEnvironment env)
                                                                                                                                          throws IOException

Throws:

IOException

loadIterators

public static <K extends org.apache.hadoop.io.WritableComparable<?>,V extends org.apache.hadoop.io.Writable> SortedKeyValueIterator<K,V> loadIterators(IteratorUtil.IteratorScope scope,
                                                                                                                                                       SortedKeyValueIterator<K,V> source,
                                                                                                                                                       KeyExtent extent,
                                                                                                                                                       AccumuloConfiguration conf,
                                                                                                                                                       List<IterInfo> ssiList,
                                                                                                                                                       Map<String,Map<String,String>> ssio,
                                                                                                                                                       IteratorEnvironment env,
                                                                                                                                                       boolean useAccumuloClassLoader)
                                                                                                                                          throws IOException

Throws:

IOException

loadIterators

public static <K extends org.apache.hadoop.io.WritableComparable<?>,V extends org.apache.hadoop.io.Writable> SortedKeyValueIterator<K,V> loadIterators(SortedKeyValueIterator<K,V> source,
                                                                                                                                                       Collection<IterInfo> iters,
                                                                                                                                                       Map<String,Map<String,String>> iterOpts,
                                                                                                                                                       IteratorEnvironment env,
                                                                                                                                                       boolean useAccumuloClassLoader)
                                                                                                                                          throws IOException

Throws:

IOException

maximizeStartKeyTimeStamp

public static Range maximizeStartKeyTimeStamp(Range range)

minimizeEndKeyTimeStamp

public static Range minimizeEndKeyTimeStamp(Range range)