org.apache.nutch.tools
Class UpdateSegmentsFromDb.BySegmentComparator

java.lang.Object
  org.apache.nutch.io.WritableComparator
      org.apache.nutch.tools.UpdateSegmentsFromDb.BySegmentComparator

All Implemented Interfaces:

Comparator

Enclosing class:

UpdateSegmentsFromDb

public static class UpdateSegmentsFromDb.BySegmentComparator

extends WritableComparator

Used internally only.

Constructor Summary

UpdateSegmentsFromDb.BySegmentComparator()

Method Summary

int	compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) Optimization hook.
int	compare(WritableComparable wc1, WritableComparable wc2) Compare two WritableComparables.

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

compare, compareBytes, define, get, getKeyClass, newKey, readFloat, readInt, readLong, readUnsignedShort

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

Constructor Detail

UpdateSegmentsFromDb.BySegmentComparator

public UpdateSegmentsFromDb.BySegmentComparator()

Method Detail

compare

public int compare(WritableComparable wc1,
                   WritableComparable wc2)

Description copied from class: WritableComparator

Compare two WritableComparables.

The default implementation uses the natural ordering, calling Comparable.compareTo(Object).

Overrides:

compare in class WritableComparator

compare

public int compare(byte[] b1,
                   int s1,
                   int l1,
                   byte[] b2,
                   int s2,
                   int l2)

Description copied from class: WritableComparator

Optimization hook. Override this to make SequenceFile.Sorter's scream.

The default implementation reads the data into two WritableComparables (using Writable.readFields(DataInput), then calls WritableComparator.compare(WritableComparable,WritableComparable).

Overrides:

compare in class WritableComparator