| 程序包 | 说明 |
|---|---|
| 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 |
A software framework for easily writing applications which process vast
amounts of data (multi-terabyte data-sets) parallelly on large clusters
(thousands of nodes) built of commodity hardware in a reliable, fault-tolerant
manner.
|
| 限定符和类型 | 类和说明 |
|---|---|
static class |
ArrayFile.Reader
Provide access to an existing array file.
|
static class |
BloomMapFile.Reader |
static class |
SetFile.Reader
Provide access to an existing set file.
|
| 限定符和类型 | 方法和说明 |
|---|---|
static MapFile.Reader[] |
MapFileOutputFormat.getReaders(FileSystem ignored,
Path dir,
Configuration conf)
Open the output generated by this format.
|
| 限定符和类型 | 方法和说明 |
|---|---|
static <K extends WritableComparable,V extends Writable> |
MapFileOutputFormat.getEntry(MapFile.Reader[] readers,
Partitioner<K,V> partitioner,
K key,
V value)
Get an entry from output generated by this class.
|
Copyright © 2009 The Apache Software Foundation