类 org.apache.hadoop.record.Record
的使用

使用Record的程序包

程序包	说明
org.apache.hadoop.record	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.typedbytes	Typed bytes are sequences of bytes in which the first byte is a type code.

org.apache.hadoop.record中Record的使用

参数类型为Record的org.apache.hadoop.record中的方法

限定符和类型	方法和说明
void	XmlRecordOutput.endRecord(Record r, String tag)
void	RecordOutput.endRecord(Record r, String tag) Mark the end of a serialized record.
void	CsvRecordOutput.endRecord(Record r, String tag)
void	BinaryRecordOutput.endRecord(Record r, String tag)
void	XmlRecordOutput.startRecord(Record r, String tag)
void	RecordOutput.startRecord(Record r, String tag) Mark the start of a record to be serialized.
void	CsvRecordOutput.startRecord(Record r, String tag)
void	BinaryRecordOutput.startRecord(Record r, String tag)

org.apache.hadoop.record.meta中Record的使用

org.apache.hadoop.record.meta中Record的子类

限定符和类型	类和说明
class	RecordTypeInfo A record's Type Information object which can read/write itself.

org.apache.hadoop.typedbytes中Record的使用

参数类型为Record的org.apache.hadoop.typedbytes中的方法

限定符和类型	方法和说明
void	TypedBytesRecordOutput.endRecord(Record r, String tag)
void	TypedBytesRecordOutput.startRecord(Record r, String tag)
void	TypedBytesWritableOutput.writeRecord(Record r)