Package org.apache.avro.hadoop.util

Class AvroCharSequenceComparator<T>

java.lang.Object

org.apache.avro.hadoop.util.AvroCharSequenceComparator<T>

Type Parameters:

T - The type of object to compare.

All Implemented Interfaces:

Comparator<T>

public class AvroCharSequenceComparator<T>
extends Object
implements Comparator<T>

Compares Avro string data (data with schema "string").

The only case where comparing Avro objects does not work using their natural order is when the schema is "string". The Avro string schema maps to the Java CharSequence interface, which does not define equals, hashCode, or compareTo.

Using this comparator enables comparisons between String and Utf8 objects that are both valid when working with Avro strings.

Field Summary

Fields

Modifier and Type	Field	Description
static final AvroCharSequenceComparator<CharSequence>	INSTANCE	A singleton instance.

Constructor Summary

Constructors

Constructor	Description
AvroCharSequenceComparator()

Method Summary

Modifier and Type	Method	Description
int	compare(T o1, T o2)

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

equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Field Details

INSTANCE

public static final AvroCharSequenceComparator<CharSequence> INSTANCE

A singleton instance.

Constructor Details

AvroCharSequenceComparator

public AvroCharSequenceComparator()

Method Details

compare

public int compare(T o1,
 T o2)

Specified by:

compare in interface Comparator<T>