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

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

All Implemented Interfaces:

org.springframework.core.Ordered, FileNamingStrategy

public class StaticFileNamingStrategy
extends AbstractFileNamingStrategy

A FileNamingStrategy which simply uses a static file name.

Author:

Janne Valkealahti

Field Summary

Fields inherited from interface org.springframework.core.Ordered

HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE

Constructor Summary

StaticFileNamingStrategy()
Instantiates a new static file naming strategy.

StaticFileNamingStrategy(java.lang.String name)
Instantiates a new static file naming strategy.

Method Summary

org.apache.hadoop.fs.Path	init(org.apache.hadoop.fs.Path path) Initialises a starting state of a strategy.
void	reset() Resets the strategy.
org.apache.hadoop.fs.Path	resolve(org.apache.hadoop.fs.Path path) Resolve a current filename.
void	setName(java.lang.String name) Sets the file name part.
void	setPrefix(java.lang.String prefix) Sets the prefix preceding name part.

Methods inherited from class org.springframework.data.hadoop.store.strategy.naming.AbstractFileNamingStrategy

getCodecInfo, getOrder, setCodecInfo, setOrder

Methods inherited from class java.lang.Object

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

Constructor Detail

StaticFileNamingStrategy

public StaticFileNamingStrategy()

Instantiates a new static file naming strategy.

StaticFileNamingStrategy

public StaticFileNamingStrategy(java.lang.String name)

Instantiates a new static file naming strategy.

Parameters:

name - the name

Method Detail

resolve

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

Description copied from interface: FileNamingStrategy

Resolve a current filename.

Returns:

the filename

reset

public void reset()

Description copied from interface: FileNamingStrategy

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

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

Overrides:

init in class AbstractFileNamingStrategy

Parameters:

path - the path

Returns:

the path

setName

public void setName(java.lang.String name)

Sets the file name part.

Parameters:

name - the new name part

setPrefix

public void setPrefix(java.lang.String prefix)

Sets the prefix preceding name part.

Parameters:

prefix - the new prefix