org.apache.nutch.io
Class SetFile.Writer

java.lang.Object
  org.apache.nutch.io.MapFile.Writer
      org.apache.nutch.io.SetFile.Writer

Enclosing class:

SetFile

public static class SetFile.Writer

extends MapFile.Writer

Write a new set file.

Constructor Summary

SetFile.Writer(NutchFileSystem nfs, String dirName, Class keyClass)
Create the named set for keys of the named class.

SetFile.Writer(NutchFileSystem nfs, String dirName, WritableComparator comparator)
Create the named set using the named key comparator.

Method Summary

void	append(WritableComparable key) Append a key to a set.

Methods inherited from class org.apache.nutch.io.MapFile.Writer

append, close, getIndexInterval, setIndexInterval

Methods inherited from class java.lang.Object

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

Constructor Detail

SetFile.Writer

public SetFile.Writer(NutchFileSystem nfs,
                      String dirName,
                      Class keyClass)
               throws IOException

Create the named set for keys of the named class.

SetFile.Writer

public SetFile.Writer(NutchFileSystem nfs,
                      String dirName,
                      WritableComparator comparator)
               throws IOException

Create the named set using the named key comparator.

Method Detail

append

public void append(WritableComparable key)
            throws IOException

Append a key to a set. The key must be strictly greater than the previous key added to the set.

Throws:

IOException