com.asakusafw.runtime.io.util

Class ShuffleKey.AbstractOrderComparator

java.lang.Object

org.apache.hadoop.io.WritableComparator

com.asakusafw.runtime.io.util.WritableRawComparator

com.asakusafw.runtime.io.util.ShuffleKey.AbstractOrderComparator

All Implemented Interfaces:

Comparator, org.apache.hadoop.conf.Configurable, org.apache.hadoop.io.RawComparator

Enclosing class:

ShuffleKey<TGroup extends WritableRawComparable,TOrder extends WritableRawComparable>

public abstract static class ShuffleKey.AbstractOrderComparator
extends WritableRawComparator

An abstract implementation of ordering comparator for ShuffleKey.

Since:

0.2.5

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractOrderComparator(Class<? extends ShuffleKey> keyClass) Creates a new instance.

Method Summary

Methods inherited from class com.asakusafw.runtime.io.util.WritableRawComparator

compare

Methods inherited from class org.apache.hadoop.io.WritableComparator

compare, compare, compareBytes, define, get, get, getConf, getKeyClass, hashBytes, hashBytes, newKey, readDouble, readFloat, readInt, readLong, readUnsignedShort, readVInt, readVLong, setConf

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

AbstractOrderComparator

protected AbstractOrderComparator(Class<? extends ShuffleKey> keyClass)

Creates a new instance.

Parameters:

keyClass - the key class