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 | 方法和说明 |
---|---|
SequenceFile.ValueBytes |
SequenceFile.Reader.createValueBytes() |
SequenceFile.ValueBytes |
SequenceFile.Sorter.RawKeyValueIterator.getValue()
Gets the current raw value
|
限定符和类型 | 方法和说明 |
---|---|
void |
SequenceFile.Writer.appendRaw(byte[] keyData,
int keyOffset,
int keyLength,
SequenceFile.ValueBytes val) |
int |
SequenceFile.Reader.nextRaw(DataOutputBuffer key,
SequenceFile.ValueBytes val)
Read 'raw' records.
|
int |
SequenceFile.Reader.nextRawValue(SequenceFile.ValueBytes val)
Read 'raw' values.
|
int |
SequenceFile.Sorter.SegmentDescriptor.nextRawValue(SequenceFile.ValueBytes rawValue)
Fills up the passed rawValue with the value corresponding to the key
read earlier
|
限定符和类型 | 类和说明 |
---|---|
protected static class |
SequenceFileAsBinaryOutputFormat.WritableValueBytes
Inner class used for appendRaw
|
Copyright © 2009 The Apache Software Foundation