接口 org.apache.hadoop.record.RecordOutput
的使用

使用RecordOutput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RecordOutput的使用

实现RecordOutput的org.apache.hadoop.record中的类

限定符和类型	类和说明
class	BinaryRecordOutput
class	CsvRecordOutput
class	XmlRecordOutput XML Serializer.

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

限定符和类型	方法和说明
void	Record.serialize(RecordOutput rout) Serialize a record without a tag
abstract void	Record.serialize(RecordOutput rout, String tag) Serialize a record with tag (ususally field name)

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

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

限定符和类型	方法和说明
void	RecordTypeInfo.serialize(RecordOutput rout, String tag) Serialize the type information for a record

org.apache.hadoop.typedbytes中RecordOutput的使用

实现RecordOutput的org.apache.hadoop.typedbytes中的类

限定符和类型	类和说明
class	TypedBytesRecordOutput Deserialized for records that reads typed bytes.