org.apache.spark.ml.util

Class MLWriter

java.lang.Object

org.apache.spark.ml.util.MLWriter

All Implemented Interfaces:

Logging

public abstract class MLWriter
extends java.lang.Object
implements Logging

Abstract class for utility classes that can save ML instances.

Constructor Summary

Constructors

Constructor and Description
MLWriter()

Method Summary

Methods

Modifier and Type	Method and Description
MLWriter	context(SQLContext sqlContext) Sets the SQL context to use for saving/loading.
scala.Option<SQLContext>	optionSQLContext()
MLWriter	overwrite() Overwrites if the output path already exists.
void	save(java.lang.String path) Saves the ML instances to the input path.
protected abstract void	saveImpl(java.lang.String path) save() handles overwriting and then calls this method.
SparkContext	sc() Returns the SparkContext underlying sqlContext
protected boolean	shouldOverwrite()
SQLContext	sqlContext() Returns the user-specified SQL context or the default.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.spark.Logging

initializeIfNecessary, initializeLogging, isTraceEnabled, log_, log, logDebug, logDebug, logError, logError, logInfo, logInfo, logName, logTrace, logTrace, logWarning, logWarning

Constructor Detail

MLWriter

public MLWriter()

Method Detail

shouldOverwrite

protected boolean shouldOverwrite()

save

public void save(java.lang.String path)

Saves the ML instances to the input path.

Parameters:

path - (undocumented)

saveImpl

protected abstract void saveImpl(java.lang.String path)

save() handles overwriting and then calls this method. Subclasses should override this method to implement the actual saving of the instance.

Parameters:

path - (undocumented)

overwrite

public MLWriter overwrite()

Overwrites if the output path already exists.

Returns:

(undocumented)

context

public MLWriter context(SQLContext sqlContext)

Sets the SQL context to use for saving/loading.

Parameters:

sqlContext - (undocumented)

Returns:

(undocumented)

optionSQLContext

public scala.Option<SQLContext> optionSQLContext()

sqlContext

public SQLContext sqlContext()

Returns the user-specified SQL context or the default.

Returns:

(undocumented)

sc

public SparkContext sc()

Returns the SparkContext underlying sqlContext