org.apache.hadoop.io.serializer

接口 Deserializer<T>

类型参数:

T -

public interface Deserializer<T>

Provides a facility for deserializing objects of type from an InputStream.

Deserializers are stateful, but must not buffer the input since other producers may read from the input between calls to deserialize(Object).

方法概要

方法

限定符和类型	方法和说明
void	close() Close the underlying input stream and clear up any resources.
T	deserialize(T t) Deserialize the next object from the underlying input stream.
void	open(InputStream in) Prepare the deserializer for reading.

方法详细资料

open

void open(InputStream in)
          throws IOException

Prepare the deserializer for reading.

抛出:

IOException

deserialize

T deserialize(T t)
              throws IOException

Deserialize the next object from the underlying input stream. If the object t is non-null then this deserializer may set its internal state to the next object read from the input stream. Otherwise, if the object t is null a new deserialized object will be created.

返回:

the deserialized object

抛出:

IOException

close

void close()
           throws IOException

Close the underlying input stream and clear up any resources.

抛出:

IOException