org.springframework.data.hadoop.store.strategy.naming

Interface FileNamingStrategy

All Superinterfaces:

FileNamingStrategyFactory<FileNamingStrategy>

All Known Implementing Classes:

AbstractFileNamingStrategy, ChainedFileNamingStrategy, CodecFileNamingStrategy, RollingFileNamingStrategy, StaticFileNamingStrategy, UuidFileNamingStrategy

public interface FileNamingStrategy
extends FileNamingStrategyFactory<FileNamingStrategy>

Strategy interface for components naming files.

Author:

Janne Valkealahti

Method Summary

Methods

Modifier and Type	Method and Description
org.apache.hadoop.fs.Path	init(org.apache.hadoop.fs.Path path) Initialises a starting state of a strategy.
void	next() This method should be called to prepare next filename in case strategy doesn't know how to do it automatically.
void	reset() Resets the strategy to its original state.
org.apache.hadoop.fs.Path	resolve(org.apache.hadoop.fs.Path path) Resolve a current file path denoted by this strategy.
void	setCodecInfo(CodecInfo codecInfo) Sets the codec info.

Methods inherited from interface org.springframework.data.hadoop.store.strategy.naming.FileNamingStrategyFactory

createInstance

Method Detail

resolve

org.apache.hadoop.fs.Path resolve(org.apache.hadoop.fs.Path path)

Resolve a current file path denoted by this strategy.

Parameters:

path - the path

Returns:

the path

next

void next()

This method should be called to prepare next filename in case strategy doesn't know how to do it automatically.

reset

void reset()

Resets the strategy to its original state.

init

org.apache.hadoop.fs.Path init(org.apache.hadoop.fs.Path path)

Initialises a starting state of a strategy. Implementor of this method needs to check the final part of the Path and remove its own handled part if possible. Returned Path is then passed into next strategy for it to able to do its own initialisation logic.

Path passed to this method may be null indicating that no further processing should be done or simply we don't have information about the initialised path.

Parameters:

path - the path

Returns:

the path

setCodecInfo

void setCodecInfo(CodecInfo codecInfo)

Sets the codec info.

Parameters:

codecInfo - the new codec info