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Packages that use Writable | |
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org.apache.hadoop.conf | Configuration of system parameters. |
org.apache.hadoop.fs | An abstract file system API. |
org.apache.hadoop.fs.permission | |
org.apache.hadoop.io | Generic i/o code for use when reading and writing data to the network, to databases, and to files. |
org.apache.hadoop.io.serializer | This package provides a mechanism for using different serialization frameworks in Hadoop. |
org.apache.hadoop.ipc | Tools to help define network clients and servers. |
org.apache.hadoop.record | (DEPRECATED) Hadoop record I/O contains classes and a record description language translator for simplifying serialization and deserialization of records in a language-neutral manner. |
org.apache.hadoop.record.meta | |
org.apache.hadoop.util | Common utilities. |
org.apache.hadoop.util.bloom |
Uses of Writable in org.apache.hadoop.conf |
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Classes in org.apache.hadoop.conf that implement Writable | |
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class |
Configuration
Provides access to configuration parameters. |
Uses of Writable in org.apache.hadoop.fs |
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Classes in org.apache.hadoop.fs that implement Writable | |
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class |
BlockLocation
|
class |
ContentSummary
Store the summary of a content (a directory or a file). |
class |
FileChecksum
An abstract class representing file checksums for files. |
class |
FileStatus
Interface that represents the client side information for a file. |
class |
FsServerDefaults
Provides server default configuration values to clients. |
class |
FsStatus
This class is used to represent the capacity, free and used space on a FileSystem . |
class |
LocatedFileStatus
This class defines a FileStatus that includes a file's block locations. |
class |
MD5MD5CRC32CastagnoliFileChecksum
For CRC32 with the Castagnoli polynomial |
class |
org.apache.hadoop.fs.MD5MD5CRC32FileChecksum
MD5 of MD5 of CRC32. |
class |
MD5MD5CRC32GzipFileChecksum
For CRC32 with the Gzip polynomial |
Uses of Writable in org.apache.hadoop.fs.permission |
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Classes in org.apache.hadoop.fs.permission that implement Writable | |
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class |
FsPermission
A class for file/directory permissions. |
Uses of Writable in org.apache.hadoop.io |
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Subinterfaces of Writable in org.apache.hadoop.io | |
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interface |
WritableComparable<T>
A Writable which is also Comparable . |
Classes in org.apache.hadoop.io that implement Writable | |
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class |
AbstractMapWritable
Abstract base class for MapWritable and SortedMapWritable Unlike org.apache.nutch.crawl.MapWritable, this class allows creation of MapWritable<Writable, MapWritable> so the CLASS_TO_ID and ID_TO_CLASS maps travel with the class instead of being static. |
class |
ArrayPrimitiveWritable
This is a wrapper class. |
class |
ArrayWritable
A Writable for arrays containing instances of a class. |
class |
BooleanWritable
A WritableComparable for booleans. |
class |
BytesWritable
A byte sequence that is usable as a key or value. |
class |
ByteWritable
A WritableComparable for a single byte. |
class |
CompressedWritable
A base-class for Writables which store themselves compressed and lazily inflate on field access. |
class |
DoubleWritable
Writable for Double values. |
class |
EnumSetWritable<E extends Enum<E>>
A Writable wrapper for EnumSet. |
class |
FloatWritable
A WritableComparable for floats. |
class |
GenericWritable
A wrapper for Writable instances. |
class |
IntWritable
A WritableComparable for ints. |
class |
LongWritable
A WritableComparable for longs. |
class |
MapWritable
A Writable Map. |
class |
MD5Hash
A Writable for MD5 hash values. |
class |
NullWritable
Singleton Writable with no data. |
class |
ObjectWritable
A polymorphic Writable that writes an instance with it's class name. |
static class |
SequenceFile.Metadata
The class encapsulating with the metadata of a file. |
class |
ShortWritable
A WritableComparable for shorts. |
class |
SortedMapWritable
A Writable SortedMap. |
class |
Text
This class stores text using standard UTF8 encoding. |
class |
TwoDArrayWritable
A Writable for 2D arrays containing a matrix of instances of a class. |
class |
VersionedWritable
A base class for Writables that provides version checking. |
class |
VIntWritable
A WritableComparable for integer values stored in variable-length format. |
class |
VLongWritable
A WritableComparable for longs in a variable-length format. |
Methods in org.apache.hadoop.io with type parameters of type Writable | ||
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static
|
WritableUtils.clone(T orig,
Configuration conf)
Make a copy of a writable object using serialization to a buffer. |
Methods in org.apache.hadoop.io that return Writable | |
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Writable[][] |
TwoDArrayWritable.get()
|
Writable[] |
ArrayWritable.get()
|
Writable |
GenericWritable.get()
Return the wrapped instance. |
Writable |
ArrayFile.Reader.get(long n,
Writable value)
Return the n th value in the file. |
Writable |
SortedMapWritable.get(Object key)
|
Writable |
MapWritable.get(Object key)
|
Writable |
MapFile.Reader.get(WritableComparable key,
Writable val)
Return the value for the named key, or null if none exists. |
Writable |
BloomMapFile.Reader.get(WritableComparable key,
Writable val)
Fast version of the MapFile.Reader.get(WritableComparable, Writable) method. |
Writable |
WritableFactory.newInstance()
Return a new instance. |
static Writable |
WritableFactories.newInstance(Class<? extends Writable> c)
Create a new instance of a class with a defined factory. |
static Writable |
WritableFactories.newInstance(Class<? extends Writable> c,
Configuration conf)
Create a new instance of a class with a defined factory. |
Writable |
ArrayFile.Reader.next(Writable value)
Read and return the next value in the file. |
Writable |
SortedMapWritable.put(WritableComparable key,
Writable value)
|
Writable |
MapWritable.put(Writable key,
Writable value)
|
Writable |
SortedMapWritable.remove(Object key)
|
Writable |
MapWritable.remove(Object key)
|
Methods in org.apache.hadoop.io that return types with arguments of type Writable | |
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Set<Map.Entry<WritableComparable,Writable>> |
SortedMapWritable.entrySet()
|
Set<Map.Entry<Writable,Writable>> |
MapWritable.entrySet()
|
Set<Map.Entry<Writable,Writable>> |
MapWritable.entrySet()
|
SortedMap<WritableComparable,Writable> |
SortedMapWritable.headMap(WritableComparable toKey)
|
Set<Writable> |
MapWritable.keySet()
|
SortedMap<WritableComparable,Writable> |
SortedMapWritable.subMap(WritableComparable fromKey,
WritableComparable toKey)
|
SortedMap<WritableComparable,Writable> |
SortedMapWritable.tailMap(WritableComparable fromKey)
|
Collection<Writable> |
SortedMapWritable.values()
|
Collection<Writable> |
MapWritable.values()
|
Methods in org.apache.hadoop.io with parameters of type Writable | |
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void |
ArrayFile.Writer.append(Writable value)
Append a value to the file. |
void |
MapFile.Writer.append(WritableComparable key,
Writable val)
Append a key/value pair to the map. |
void |
BloomMapFile.Writer.append(WritableComparable key,
Writable val)
|
void |
SequenceFile.Writer.append(Writable key,
Writable val)
Append a key/value pair. |
static void |
WritableUtils.cloneInto(Writable dst,
Writable src)
Deprecated. use ReflectionUtils.cloneInto instead. |
protected void |
AbstractMapWritable.copy(Writable other)
Used by child copy constructors. |
Writable |
ArrayFile.Reader.get(long n,
Writable value)
Return the n th value in the file. |
Writable |
MapFile.Reader.get(WritableComparable key,
Writable val)
Return the value for the named key, or null if none exists. |
Writable |
BloomMapFile.Reader.get(WritableComparable key,
Writable val)
Fast version of the MapFile.Reader.get(WritableComparable, Writable) method. |
WritableComparable |
MapFile.Reader.getClosest(WritableComparable key,
Writable val)
Finds the record that is the closest match to the specified key. |
WritableComparable |
MapFile.Reader.getClosest(WritableComparable key,
Writable val,
boolean before)
Finds the record that is the closest match to the specified key. |
void |
SequenceFile.Reader.getCurrentValue(Writable val)
Get the 'value' corresponding to the last read 'key'. |
boolean |
SequenceFile.Reader.next(Writable key)
Read the next key in the file into key , skipping its
value. |
Writable |
ArrayFile.Reader.next(Writable value)
Read and return the next value in the file. |
boolean |
MapFile.Reader.next(WritableComparable key,
Writable val)
Read the next key/value pair in the map into key and
val . |
boolean |
SequenceFile.Reader.next(Writable key,
Writable val)
Read the next key/value pair in the file into key and
val . |
Writable |
SortedMapWritable.put(WritableComparable key,
Writable value)
|
Writable |
MapWritable.put(Writable key,
Writable value)
|
void |
GenericWritable.set(Writable obj)
Set the instance that is wrapped. |
void |
ArrayWritable.set(Writable[] values)
|
void |
TwoDArrayWritable.set(Writable[][] values)
|
static byte[] |
WritableUtils.toByteArray(Writable... writables)
Convert writables to a byte array |
Method parameters in org.apache.hadoop.io with type arguments of type Writable | |
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static long |
MapFile.fix(FileSystem fs,
Path dir,
Class<? extends Writable> keyClass,
Class<? extends Writable> valueClass,
boolean dryrun,
Configuration conf)
This method attempts to fix a corrupt MapFile by re-creating its index. |
static long |
MapFile.fix(FileSystem fs,
Path dir,
Class<? extends Writable> keyClass,
Class<? extends Writable> valueClass,
boolean dryrun,
Configuration conf)
This method attempts to fix a corrupt MapFile by re-creating its index. |
static Writable |
WritableFactories.newInstance(Class<? extends Writable> c)
Create a new instance of a class with a defined factory. |
static Writable |
WritableFactories.newInstance(Class<? extends Writable> c,
Configuration conf)
Create a new instance of a class with a defined factory. |
void |
MapWritable.putAll(Map<? extends Writable,? extends Writable> t)
|
void |
MapWritable.putAll(Map<? extends Writable,? extends Writable> t)
|
void |
SortedMapWritable.putAll(Map<? extends WritableComparable,? extends Writable> t)
|
Constructors in org.apache.hadoop.io with parameters of type Writable | |
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ArrayWritable(Class<? extends Writable> valueClass,
Writable[] values)
|
|
TwoDArrayWritable(Class valueClass,
Writable[][] values)
|
Constructor parameters in org.apache.hadoop.io with type arguments of type Writable | |
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ArrayFile.Writer(Configuration conf,
FileSystem fs,
String file,
Class<? extends Writable> valClass)
Create the named file for values of the named class. |
|
ArrayFile.Writer(Configuration conf,
FileSystem fs,
String file,
Class<? extends Writable> valClass,
SequenceFile.CompressionType compress,
Progressable progress)
Create the named file for values of the named class. |
|
ArrayWritable(Class<? extends Writable> valueClass)
|
|
ArrayWritable(Class<? extends Writable> valueClass,
Writable[] values)
|
|
BloomMapFile.Writer(Configuration conf,
FileSystem fs,
String dirName,
Class<? extends WritableComparable> keyClass,
Class<? extends Writable> valClass,
SequenceFile.CompressionType compress,
CompressionCodec codec,
Progressable progress)
Deprecated. |
Uses of Writable in org.apache.hadoop.io.serializer |
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Methods in org.apache.hadoop.io.serializer that return types with arguments of type Writable | |
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org.apache.hadoop.io.serializer.Deserializer<Writable> |
WritableSerialization.getDeserializer(Class<Writable> c)
|
org.apache.hadoop.io.serializer.Serializer<Writable> |
WritableSerialization.getSerializer(Class<Writable> c)
|
Method parameters in org.apache.hadoop.io.serializer with type arguments of type Writable | |
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org.apache.hadoop.io.serializer.Deserializer<Writable> |
WritableSerialization.getDeserializer(Class<Writable> c)
|
org.apache.hadoop.io.serializer.Serializer<Writable> |
WritableSerialization.getSerializer(Class<Writable> c)
|
Uses of Writable in org.apache.hadoop.ipc |
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Classes in org.apache.hadoop.ipc that implement Writable | |
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class |
ProtocolSignature
|
Methods in org.apache.hadoop.ipc that return Writable | |
---|---|
Writable |
WritableRpcEngine.Server.call(Class<?> protocol,
Writable param,
long receivedTime)
|
abstract Writable |
Server.call(Class<?> protocol,
Writable param,
long receiveTime)
Called for each call. |
Writable[] |
Client.call(Writable[] params,
InetSocketAddress[] addresses)
Deprecated. Use Client.call(Writable[], InetSocketAddress[],
Class, UserGroupInformation, Configuration) instead |
Writable[] |
Client.call(Writable[] params,
InetSocketAddress[] addresses,
Class<?> protocol,
org.apache.hadoop.security.UserGroupInformation ticket)
Deprecated. Use Client.call(Writable[], InetSocketAddress[],
Class, UserGroupInformation, Configuration) instead |
Writable[] |
Client.call(Writable[] params,
InetSocketAddress[] addresses,
Class<?> protocol,
org.apache.hadoop.security.UserGroupInformation ticket,
Configuration conf)
Makes a set of calls in parallel. |
Writable |
Client.call(Writable param,
org.apache.hadoop.ipc.Client.ConnectionId remoteId)
Make a call, passing param , to the IPC server defined by
remoteId , returning the value. |
Writable |
Client.call(Writable param,
InetSocketAddress address)
Deprecated. Use Client.call(Writable, ConnectionId) instead |
Writable |
Client.call(Writable param,
InetSocketAddress addr,
Class<?> protocol,
org.apache.hadoop.security.UserGroupInformation ticket,
int rpcTimeout)
Deprecated. Use Client.call(Writable, ConnectionId) instead |
Writable |
Client.call(Writable param,
InetSocketAddress addr,
Class<?> protocol,
org.apache.hadoop.security.UserGroupInformation ticket,
int rpcTimeout,
Configuration conf)
Make a call, passing param , to the IPC server running at
address which is servicing the protocol protocol,
with the ticket credentials, rpcTimeout as
timeout and conf as conf for this connection, returning the
value. |
Writable |
Client.call(Writable param,
InetSocketAddress addr,
org.apache.hadoop.security.UserGroupInformation ticket)
Deprecated. Use Client.call(Writable, ConnectionId) instead |
Writable |
Server.call(Writable param,
long receiveTime)
Deprecated. Use Server.call(Class, Writable, long) instead |
Methods in org.apache.hadoop.ipc with parameters of type Writable | |
---|---|
Writable |
WritableRpcEngine.Server.call(Class<?> protocol,
Writable param,
long receivedTime)
|
abstract Writable |
Server.call(Class<?> protocol,
Writable param,
long receiveTime)
Called for each call. |
Writable[] |
Client.call(Writable[] params,
InetSocketAddress[] addresses)
Deprecated. Use Client.call(Writable[], InetSocketAddress[],
Class, UserGroupInformation, Configuration) instead |
Writable[] |
Client.call(Writable[] params,
InetSocketAddress[] addresses,
Class<?> protocol,
org.apache.hadoop.security.UserGroupInformation ticket)
Deprecated. Use Client.call(Writable[], InetSocketAddress[],
Class, UserGroupInformation, Configuration) instead |
Writable[] |
Client.call(Writable[] params,
InetSocketAddress[] addresses,
Class<?> protocol,
org.apache.hadoop.security.UserGroupInformation ticket,
Configuration conf)
Makes a set of calls in parallel. |
Writable |
Client.call(Writable param,
org.apache.hadoop.ipc.Client.ConnectionId remoteId)
Make a call, passing param , to the IPC server defined by
remoteId , returning the value. |
Writable |
Client.call(Writable param,
InetSocketAddress address)
Deprecated. Use Client.call(Writable, ConnectionId) instead |
Writable |
Client.call(Writable param,
InetSocketAddress addr,
Class<?> protocol,
org.apache.hadoop.security.UserGroupInformation ticket,
int rpcTimeout)
Deprecated. Use Client.call(Writable, ConnectionId) instead |
Writable |
Client.call(Writable param,
InetSocketAddress addr,
Class<?> protocol,
org.apache.hadoop.security.UserGroupInformation ticket,
int rpcTimeout,
Configuration conf)
Make a call, passing param , to the IPC server running at
address which is servicing the protocol protocol,
with the ticket credentials, rpcTimeout as
timeout and conf as conf for this connection, returning the
value. |
Writable |
Client.call(Writable param,
InetSocketAddress addr,
org.apache.hadoop.security.UserGroupInformation ticket)
Deprecated. Use Client.call(Writable, ConnectionId) instead |
Writable |
Server.call(Writable param,
long receiveTime)
Deprecated. Use Server.call(Class, Writable, long) instead |
Constructor parameters in org.apache.hadoop.ipc with type arguments of type Writable | |
---|---|
Client(Class<? extends Writable> valueClass,
Configuration conf)
Construct an IPC client with the default SocketFactory |
|
Client(Class<? extends Writable> valueClass,
Configuration conf,
SocketFactory factory)
Construct an IPC client whose values are of the given Writable
class. |
|
RPC.Server(String bindAddress,
int port,
Class<? extends Writable> paramClass,
int handlerCount,
int numReaders,
int queueSizePerHandler,
Configuration conf,
String serverName,
org.apache.hadoop.security.token.SecretManager<? extends org.apache.hadoop.security.token.TokenIdentifier> secretManager,
String portRangeConfig)
|
|
Server(String bindAddress,
int port,
Class<? extends Writable> paramClass,
int handlerCount,
Configuration conf)
|
|
Server(String bindAddress,
int port,
Class<? extends Writable> rpcRequestClass,
int handlerCount,
int numReaders,
int queueSizePerHandler,
Configuration conf,
String serverName,
org.apache.hadoop.security.token.SecretManager<? extends org.apache.hadoop.security.token.TokenIdentifier> secretManager)
|
|
Server(String bindAddress,
int port,
Class<? extends Writable> paramClass,
int handlerCount,
int numReaders,
int queueSizePerHandler,
Configuration conf,
String serverName,
org.apache.hadoop.security.token.SecretManager<? extends org.apache.hadoop.security.token.TokenIdentifier> secretManager,
String portRangeConfig)
Constructs a server listening on the named port and address. |
Uses of Writable in org.apache.hadoop.record |
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Classes in org.apache.hadoop.record that implement Writable | |
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class |
Record
Deprecated. Replaced by Avro. |
Uses of Writable in org.apache.hadoop.record.meta |
---|
Classes in org.apache.hadoop.record.meta that implement Writable | |
---|---|
class |
RecordTypeInfo
Deprecated. Replaced by Avro. |
Uses of Writable in org.apache.hadoop.util |
---|
Methods in org.apache.hadoop.util with parameters of type Writable | |
---|---|
static void |
ReflectionUtils.cloneWritableInto(Writable dst,
Writable src)
Deprecated. |
Uses of Writable in org.apache.hadoop.util.bloom |
---|
Classes in org.apache.hadoop.util.bloom that implement Writable | |
---|---|
class |
BloomFilter
Implements a Bloom filter, as defined by Bloom in 1970. |
class |
CountingBloomFilter
Implements a counting Bloom filter, as defined by Fan et al. |
class |
DynamicBloomFilter
Implements a dynamic Bloom filter, as defined in the INFOCOM 2006 paper. |
class |
org.apache.hadoop.util.bloom.Filter
Defines the general behavior of a filter. |
class |
RetouchedBloomFilter
Implements a retouched Bloom filter, as defined in the CoNEXT 2006 paper. |
|
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