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

java.lang.Object
  org.springframework.data.hadoop.store.strategy.naming.AbstractFileNamingStrategy

All Implemented Interfaces:

org.springframework.core.Ordered, FileNamingStrategy

Direct Known Subclasses:

CodecFileNamingStrategy, RollingFileNamingStrategy, StaticFileNamingStrategy

public abstract class AbstractFileNamingStrategy
extends java.lang.Object
implements FileNamingStrategy, org.springframework.core.Ordered

Base class for FileNamingStrategy implementations. This class also implements Ordered interface to be useful with ChainedFileNamingStrategy and OrderedComposite.

Author:

Janne Valkealahti

Field Summary

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

AbstractFileNamingStrategy()

Method Summary

CodecInfo	getCodecInfo() Gets the codec info.
int	getOrder() Implementation should override this method to define a chaining order.
org.apache.hadoop.fs.Path	init(org.apache.hadoop.fs.Path path) Initialises a starting state of a strategy.
void	setCodecInfo(CodecInfo codecInfo) Sets the codec info.
void	setOrder(int order) Sets the order.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

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

reset, resolve

Constructor Detail

AbstractFileNamingStrategy

public AbstractFileNamingStrategy()

Method Detail

getOrder

public int getOrder()

Implementation should override this method to define a chaining order.

Specified by:

getOrder in interface org.springframework.core.Ordered

Returns:

the order value

See Also:

Ordered.getOrder()

setCodecInfo

public void setCodecInfo(CodecInfo codecInfo)

Description copied from interface: FileNamingStrategy

Sets the codec info.

Specified by:

setCodecInfo in interface FileNamingStrategy

Parameters:

codecInfo - the new codec info

init

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

Description copied from interface: FileNamingStrategy

Initialises a starting state of a strategy. Implementor of this method needs to check the final part of the Path and remove it's 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.

Specified by:

init in interface FileNamingStrategy

Parameters:

path - the path

Returns:

the path

setOrder

public void setOrder(int order)

Sets the order.

Parameters:

order - the new order

See Also:

Ordered

getCodecInfo

public CodecInfo getCodecInfo()

Gets the codec info.

Returns:

the codec info