org.apache.nutch.db
Class DistributedWebDBWriter.PageInstructionWriter

java.lang.Object
  org.apache.nutch.db.DistributedWebDBWriter.PageInstructionWriter

Enclosing class:

DistributedWebDBWriter

public static class DistributedWebDBWriter.PageInstructionWriter

extends Object

PageInstructionWriter very efficiently writes a PageInstruction to an EditSectionGroupWriter. Much better than calling "writer.append(new PageInstruction())"

Constructor Summary

DistributedWebDBWriter.PageInstructionWriter()

Method Summary

void	appendInstructionInfo(EditSectionGroupWriter writer, Page page, int opcode, Writable val) Append the PageInstruction info to the indicated SequenceFile, and keep the PI for later reuse.
void	appendInstructionInfo(EditSectionGroupWriter writer, Page page, Link link, int opcode, Writable val) Append the PageInstruction info to the indicated SequenceFile, and keep the PI for later reuse.

Methods inherited from class java.lang.Object

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

Constructor Detail

DistributedWebDBWriter.PageInstructionWriter

public DistributedWebDBWriter.PageInstructionWriter()

Method Detail

appendInstructionInfo

public void appendInstructionInfo(EditSectionGroupWriter writer,
                                  Page page,
                                  int opcode,
                                  Writable val)
                           throws IOException

Append the PageInstruction info to the indicated SequenceFile, and keep the PI for later reuse.

Throws:

IOException

appendInstructionInfo

public void appendInstructionInfo(EditSectionGroupWriter writer,
                                  Page page,
                                  Link link,
                                  int opcode,
                                  Writable val)
                           throws IOException

Append the PageInstruction info to the indicated SequenceFile, and keep the PI for later reuse.

Throws:

IOException