Uses of Interface
net.nutch.io.Writable

Packages that use Writable

net.nutch.db	Web database: tracks page fetches and link structure.
net.nutch.fetcher	The Nutch robot.
net.nutch.fs
net.nutch.indexer	Maintain Lucene full-text indexes.
net.nutch.io	Generic i/o code for use when reading and writing data to the network, to databases, and to files.
net.nutch.ipc	Client/Server code used by distributed search.
net.nutch.linkdb
net.nutch.pagedb
net.nutch.parse
net.nutch.protocol
net.nutch.searcher	Search API
net.nutch.tools

Uses of Writable in net.nutch.db

Classes in net.nutch.db that implement Writable

static class	DistributedWebDBWriter.LinkInstruction Holds an instruction over a Link.
static class	DistributedWebDBWriter.PageInstruction PageInstruction holds an operation over a Page.
class	Link This is the field in the Link Database.
class	Page A row in the Page Database.
static class	WebDBWriter.LinkInstruction Holds an instruction over a Link.
static class	WebDBWriter.PageInstruction PageInstruction holds an operation over a Page.

Methods in net.nutch.db with parameters of type Writable

void	WebDBWriter.PageInstructionWriter.appendInstructionInfo(SequenceFile.Writer writer, Page page, int opcode, Writable val) Append the PageInstruction info to the indicated SequenceFile, and keep the PI for later reuse.
void	WebDBWriter.PageInstructionWriter.appendInstructionInfo(SequenceFile.Writer writer, Page page, Link link, int opcode, Writable val) Append the PageInstruction info to the indicated SequenceFile, and keep the PI for later reuse.
void	WebDBWriter.LinkInstructionWriter.appendInstructionInfo(SequenceFile.Writer writer, Link link, int opcode, Writable val) Append the LinkInstruction info to the indicated SequenceFile and keep the LI for later reuse.
void	EditSectionWriter.append(WritableComparable key, Writable val) Add a key/val pair
void	EditSectionGroupWriter.append(WritableComparable key, Writable val) Add an instruction and append it.
void	DistributedWebDBWriter.PageInstructionWriter.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	DistributedWebDBWriter.PageInstructionWriter.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.
void	DistributedWebDBWriter.LinkInstructionWriter.appendInstructionInfo(EditSectionGroupWriter writer, Link link, int opcode, Writable val) Append the LinkInstruction info to the indicated SequenceFile and keep the LI for later reuse.

Uses of Writable in net.nutch.fetcher

Classes in net.nutch.fetcher that implement Writable

class

FetcherOutput An entry in the fetcher's output.

Uses of Writable in net.nutch.fs

Classes in net.nutch.fs that implement Writable

class	Block A Block is a Nutch FS primitive, identified by a long.
class	DatanodeInfo DatanodeInfo tracks stats on a given node
class	FSParam IPC param
class	FSResults The result of an NFS IPC call.
class	HeartbeatData Heartbeat data

Fields in net.nutch.fs declared as Writable

Writable	FSResults.first
Writable	FSResults.second
Writable	FSParam.first
Writable	FSParam.second

Methods in net.nutch.fs that return Writable

Writable

NDFS.NameNode.call(Writable param) This method implements the call invoked by client.

Methods in net.nutch.fs with parameters of type Writable

Writable

NDFS.NameNode.call(Writable param) This method implements the call invoked by client.

Constructors in net.nutch.fs with parameters of type Writable

FSResults(byte op, Writable first)

FSResults(byte op, Writable first, Writable second)

Uses of Writable in net.nutch.indexer

Classes in net.nutch.indexer that implement Writable

static class

DeleteDuplicates.IndexedDoc The key used in sorting for duplicates.

Uses of Writable in net.nutch.io

Subinterfaces of Writable in net.nutch.io

interface

WritableComparable An interface which extends both Writable and Comparable.

Classes in net.nutch.io that implement Writable

class	ArrayWritable A Writable for arrays containing instances of a class.
class	BooleanWritable A WritableComparable for booleans.
class	BytesWritable A Writable for byte arrays.
class	IntWritable A WritableComparable for ints.
class	LongWritable A WritableComparable for longs.
class	MD5Hash A Writable for MD5 hash values.
class	NullWritable Singleton Writable with no data.
class	TwoDArrayWritable A Writable for 2D arrays containing a matrix of instances of a class.
class	UTF8 A WritableComparable for strings that uses the UTF8 encoding.
class	VersionedWritable A base class for Writables that provides version checking.

Methods in net.nutch.io that return Writable

Writable[][]	TwoDArrayWritable.get()
Writable[]	ArrayWritable.get()
Writable	ArrayFile.Reader.next(Writable value) Read and return the next value in the file.
Writable	ArrayFile.Reader.get(long n, Writable value) Return the nth value in the file.
Writable	MapFile.Reader.get(WritableComparable key, Writable val) Return the value for the named key, or null if none exists.

Methods in net.nutch.io with parameters of type Writable

void	TwoDArrayWritable.set(Writable[][] values)
void	ArrayWritable.set(Writable[] values)
void	ArrayFile.Writer.append(Writable value) Append a value to the file.
Writable	ArrayFile.Reader.next(Writable value) Read and return the next value in the file.
Writable	ArrayFile.Reader.get(long n, Writable value) Return the nth value in the file.
void	SequenceFile.Writer.append(Writable key, Writable val) Append a key/value pair.
boolean	SequenceFile.Reader.next(Writable key) Read the next key in the file into key, skipping its value.
boolean	SequenceFile.Reader.next(Writable key, Writable val) Read the next key/value pair in the file into key and val.
void	MapFile.Writer.append(WritableComparable key, Writable val) Append a key/value pair to the map.
boolean	MapFile.Reader.next(WritableComparable key, Writable val) Read the next key/value pair in the map into key and val.
Writable	MapFile.Reader.get(WritableComparable key, Writable val) Return the value for the named key, or null if none exists.

Constructors in net.nutch.io with parameters of type Writable

TwoDArrayWritable(Class valueClass, Writable[][] values)

ArrayWritable(Class valueClass, Writable[] values)

Uses of Writable in net.nutch.ipc

Methods in net.nutch.ipc that return Writable

Writable	Client.call(Writable param, InetSocketAddress address) Make a call, passing param, to the IPC server running at address, returning the value.
Writable[]	Client.call(Writable[] params, InetSocketAddress[] addresses) Makes a set of calls in parallel.
abstract Writable	Server.call(Writable param) Called for each call.

Methods in net.nutch.ipc with parameters of type Writable

Writable	Client.call(Writable param, InetSocketAddress address) Make a call, passing param, to the IPC server running at address, returning the value.
Writable[]	Client.call(Writable[] params, InetSocketAddress[] addresses) Makes a set of calls in parallel.
abstract Writable	Server.call(Writable param) Called for each call.

Uses of Writable in net.nutch.linkdb

Classes in net.nutch.linkdb that implement Writable

class

LinkAnalysisEntry An entry in the LinkAnalysisTool's output.

Uses of Writable in net.nutch.pagedb

Classes in net.nutch.pagedb that implement Writable

class

FetchListEntry

Uses of Writable in net.nutch.parse

Classes in net.nutch.parse that implement Writable

class	Outlink
class	ParseData Data extracted from a page's content.
class	ParseText

Uses of Writable in net.nutch.protocol

Classes in net.nutch.protocol that implement Writable

class

Content

Uses of Writable in net.nutch.searcher

Classes in net.nutch.searcher that implement Writable

static class	DistributedSearch.Param The parameter passed with IPC requests.
static class	DistributedSearch.Result The parameter returned with IPC responses.
class	Hit A document which matched a query in an index.
class	HitDetails Data stored in the index for a hit.
class	Hits A set of hits matching a query.
class	Query A Nutch query.

Methods in net.nutch.searcher that return Writable

Writable

DistributedSearch.Server.call(Writable param)

Methods in net.nutch.searcher with parameters of type Writable

Writable

DistributedSearch.Server.call(Writable param)

Uses of Writable in net.nutch.tools

Classes in net.nutch.tools that implement Writable

static class

FetchListTool.SortableScore SortableScore is just a WritableComparable Float!