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Packages that use WritableComparable | |
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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.mapred | |
org.apache.hadoop.mapred.join | |
org.apache.hadoop.mapred.lib | |
org.apache.hadoop.mapred.lib.aggregate | |
org.apache.hadoop.mapreduce | |
org.apache.hadoop.mapreduce.lib.aggregate | |
org.apache.hadoop.mapreduce.lib.join | |
org.apache.hadoop.mapreduce.lib.output | |
org.apache.hadoop.mapreduce.lib.partition | |
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 |
Uses of WritableComparable in org.apache.hadoop.io |
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Classes in org.apache.hadoop.io that implement WritableComparable | |
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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 |
DoubleWritable
Writable for Double values. |
class |
FloatWritable
A WritableComparable for floats. |
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 |
ShortWritable
A WritableComparable for shorts. |
class |
Text
This class stores text using standard UTF8 encoding. |
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 that return WritableComparable | |
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WritableComparable |
SortedMapWritable.firstKey()
|
WritableComparable |
SortedMapWritable.lastKey()
|
WritableComparable |
WritableComparator.newKey()
Construct a new WritableComparable instance. |
Methods in org.apache.hadoop.io that return types with arguments of type WritableComparable | |
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Comparator<? super WritableComparable> |
SortedMapWritable.comparator()
|
Set<Map.Entry<WritableComparable,Writable>> |
SortedMapWritable.entrySet()
|
Class<? extends WritableComparable> |
WritableComparator.getKeyClass()
Returns the WritableComparable implementation class. |
SortedMap<WritableComparable,Writable> |
SortedMapWritable.headMap(WritableComparable toKey)
|
Set<WritableComparable> |
SortedMapWritable.keySet()
|
SortedMap<WritableComparable,Writable> |
SortedMapWritable.subMap(WritableComparable fromKey,
WritableComparable toKey)
|
SortedMap<WritableComparable,Writable> |
SortedMapWritable.tailMap(WritableComparable fromKey)
|
Methods in org.apache.hadoop.io with parameters of type WritableComparable | |
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int |
WritableComparator.compare(WritableComparable a,
WritableComparable b)
Compare two WritableComparables. |
int |
WritableComparator.compare(WritableComparable a,
WritableComparable b)
Compare two WritableComparables. |
SortedMap<WritableComparable,Writable> |
SortedMapWritable.headMap(WritableComparable toKey)
|
Writable |
SortedMapWritable.put(WritableComparable key,
Writable value)
|
SortedMap<WritableComparable,Writable> |
SortedMapWritable.subMap(WritableComparable fromKey,
WritableComparable toKey)
|
SortedMap<WritableComparable,Writable> |
SortedMapWritable.subMap(WritableComparable fromKey,
WritableComparable toKey)
|
SortedMap<WritableComparable,Writable> |
SortedMapWritable.tailMap(WritableComparable fromKey)
|
Method parameters in org.apache.hadoop.io with type arguments of type WritableComparable | |
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static WritableComparator |
WritableComparator.get(Class<? extends WritableComparable> c)
Get a comparator for a WritableComparable implementation. |
void |
SortedMapWritable.putAll(Map<? extends WritableComparable,? extends Writable> t)
|
Constructor parameters in org.apache.hadoop.io with type arguments of type WritableComparable | |
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WritableComparator(Class<? extends WritableComparable> keyClass)
Construct for a WritableComparable implementation. |
|
WritableComparator(Class<? extends WritableComparable> keyClass,
boolean createInstances)
|
Uses of WritableComparable in org.apache.hadoop.mapred |
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Methods in org.apache.hadoop.mapred with type parameters of type WritableComparable | ||
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static
|
MapFileOutputFormat.getEntry(org.apache.hadoop.io.MapFile.Reader[] readers,
Partitioner<K,V> partitioner,
K key,
V value)
Get an entry from output generated by this class. |
Methods in org.apache.hadoop.mapred that return types with arguments of type WritableComparable | |
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RecordWriter<WritableComparable,Writable> |
MapFileOutputFormat.getRecordWriter(FileSystem ignored,
JobConf job,
String name,
Progressable progress)
|
static Class<? extends WritableComparable> |
SequenceFileAsBinaryOutputFormat.getSequenceFileOutputKeyClass(JobConf conf)
Get the key class for the SequenceFile |
Uses of WritableComparable in org.apache.hadoop.mapred.join |
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Classes in org.apache.hadoop.mapred.join with type parameters of type WritableComparable | |
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interface |
ComposableInputFormat<K extends WritableComparable,V extends Writable>
Refinement of InputFormat requiring implementors to provide ComposableRecordReader instead of RecordReader. |
interface |
ComposableRecordReader<K extends WritableComparable,V extends Writable>
Additional operations required of a RecordReader to participate in a join. |
class |
CompositeInputFormat<K extends WritableComparable>
An InputFormat capable of performing joins over a set of data sources sorted and partitioned the same way. |
class |
CompositeRecordReader<K extends WritableComparable,V extends Writable,X extends Writable>
A RecordReader that can effect joins of RecordReaders sharing a common key type and partitioning. |
class |
InnerJoinRecordReader<K extends WritableComparable>
Full inner join. |
class |
JoinRecordReader<K extends WritableComparable>
Base class for Composite joins returning Tuples of arbitrary Writables. |
class |
MultiFilterRecordReader<K extends WritableComparable,V extends Writable>
Base class for Composite join returning values derived from multiple sources, but generally not tuples. |
class |
OuterJoinRecordReader<K extends WritableComparable>
Full outer join. |
class |
OverrideRecordReader<K extends WritableComparable,V extends Writable>
Prefer the "rightmost" data source for this key. |
class |
WrappedRecordReader<K extends WritableComparable,U extends Writable>
Proxy class for a RecordReader participating in the join framework. |
Uses of WritableComparable in org.apache.hadoop.mapred.lib |
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Classes in org.apache.hadoop.mapred.lib with type parameters of type WritableComparable | |
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class |
TotalOrderPartitioner<K extends WritableComparable<?>,V>
Partitioner effecting a total order by reading split points from an externally generated source. |
Uses of WritableComparable in org.apache.hadoop.mapred.lib.aggregate |
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Classes in org.apache.hadoop.mapred.lib.aggregate with type parameters of type WritableComparable | |
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class |
ValueAggregatorCombiner<K1 extends WritableComparable,V1 extends Writable>
This class implements the generic combiner of Aggregate. |
class |
ValueAggregatorJobBase<K1 extends WritableComparable,V1 extends Writable>
This abstract class implements some common functionalities of the the generic mapper, reducer and combiner classes of Aggregate. |
class |
ValueAggregatorMapper<K1 extends WritableComparable,V1 extends Writable>
This class implements the generic mapper of Aggregate. |
class |
ValueAggregatorReducer<K1 extends WritableComparable,V1 extends Writable>
This class implements the generic reducer of Aggregate. |
Uses of WritableComparable in org.apache.hadoop.mapreduce |
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Classes in org.apache.hadoop.mapreduce that implement WritableComparable | |
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class |
ID
A general identifier, which internally stores the id as an integer. |
class |
JobID
JobID represents the immutable and unique identifier for the job. |
class |
TaskAttemptID
TaskAttemptID represents the immutable and unique identifier for a task attempt. |
class |
TaskID
TaskID represents the immutable and unique identifier for a Map or Reduce Task. |
Uses of WritableComparable in org.apache.hadoop.mapreduce.lib.aggregate |
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Classes in org.apache.hadoop.mapreduce.lib.aggregate with type parameters of type WritableComparable | |
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class |
ValueAggregatorCombiner<K1 extends WritableComparable<?>,V1 extends Writable>
This class implements the generic combiner of Aggregate. |
class |
ValueAggregatorJobBase<K1 extends WritableComparable<?>,V1 extends Writable>
This abstract class implements some common functionalities of the the generic mapper, reducer and combiner classes of Aggregate. |
class |
ValueAggregatorMapper<K1 extends WritableComparable<?>,V1 extends Writable>
This class implements the generic mapper of Aggregate. |
class |
ValueAggregatorReducer<K1 extends WritableComparable<?>,V1 extends Writable>
This class implements the generic reducer of Aggregate. |
Uses of WritableComparable in org.apache.hadoop.mapreduce.lib.join |
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Classes in org.apache.hadoop.mapreduce.lib.join with type parameters of type WritableComparable | |
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class |
ComposableInputFormat<K extends WritableComparable<?>,V extends Writable>
Refinement of InputFormat requiring implementors to provide ComposableRecordReader instead of RecordReader. |
class |
ComposableRecordReader<K extends WritableComparable<?>,V extends Writable>
Additional operations required of a RecordReader to participate in a join. |
class |
CompositeInputFormat<K extends WritableComparable>
An InputFormat capable of performing joins over a set of data sources sorted and partitioned the same way. |
class |
CompositeRecordReader<K extends WritableComparable<?>,V extends Writable,X extends Writable>
A RecordReader that can effect joins of RecordReaders sharing a common key type and partitioning. |
class |
InnerJoinRecordReader<K extends WritableComparable<?>>
Full inner join. |
class |
JoinRecordReader<K extends WritableComparable<?>>
Base class for Composite joins returning Tuples of arbitrary Writables. |
class |
MultiFilterRecordReader<K extends WritableComparable<?>,V extends Writable>
Base class for Composite join returning values derived from multiple sources, but generally not tuples. |
class |
OuterJoinRecordReader<K extends WritableComparable<?>>
Full outer join. |
class |
OverrideRecordReader<K extends WritableComparable<?>,V extends Writable>
Prefer the "rightmost" data source for this key. |
class |
WrappedRecordReader<K extends WritableComparable<?>,U extends Writable>
Proxy class for a RecordReader participating in the join framework. |
Fields in org.apache.hadoop.mapreduce.lib.join declared as WritableComparable | |
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protected K |
CompositeRecordReader.key
|
Fields in org.apache.hadoop.mapreduce.lib.join with type parameters of type WritableComparable | |
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protected Class<? extends WritableComparable> |
CompositeRecordReader.keyclass
|
Uses of WritableComparable in org.apache.hadoop.mapreduce.lib.output |
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Methods in org.apache.hadoop.mapreduce.lib.output with type parameters of type WritableComparable | ||
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static
|
MapFileOutputFormat.getEntry(org.apache.hadoop.io.MapFile.Reader[] readers,
Partitioner<K,V> partitioner,
K key,
V value)
Get an entry from output generated by this class. |
Methods in org.apache.hadoop.mapreduce.lib.output that return types with arguments of type WritableComparable | |
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RecordWriter<WritableComparable<?>,Writable> |
MapFileOutputFormat.getRecordWriter(TaskAttemptContext context)
|
static Class<? extends WritableComparable> |
SequenceFileAsBinaryOutputFormat.getSequenceFileOutputKeyClass(JobContext job)
Get the key class for the SequenceFile |
Uses of WritableComparable in org.apache.hadoop.mapreduce.lib.partition |
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Classes in org.apache.hadoop.mapreduce.lib.partition with type parameters of type WritableComparable | |
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class |
TotalOrderPartitioner<K extends WritableComparable<?>,V>
Partitioner effecting a total order by reading split points from an externally generated source. |
Uses of WritableComparable in org.apache.hadoop.record |
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Classes in org.apache.hadoop.record that implement WritableComparable | |
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class |
Record
Deprecated. Replaced by Avro. |
Constructor parameters in org.apache.hadoop.record with type arguments of type WritableComparable | |
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RecordComparator(Class<? extends WritableComparable> recordClass)
Deprecated. Construct a raw Record comparison implementation. |
Uses of WritableComparable in org.apache.hadoop.record.meta |
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Classes in org.apache.hadoop.record.meta that implement WritableComparable | |
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class |
RecordTypeInfo
Deprecated. Replaced by Avro. |
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