java.lang.Object
- weka.core.converters.AbstractLoader
- - weka.core.converters.AbstractFileLoader

All Implemented Interfaces:

java.io.Serializable, FileSourcedConverter, Loader, EnvironmentHandler, RevisionHandler

Direct Known Subclasses:

ArffLoader, C45Loader, CSVLoader, LibSVMLoader, SerializedInstancesLoader, SVMLightLoader, XRFFLoader
```
public abstract class AbstractFileLoader
extends AbstractLoader
implements FileSourcedConverter, EnvironmentHandler
```
Abstract superclass for all file loaders.

Version:

$Revision: 7391 $

Author:

fracpete (fracpete at waikato dot ac dot nz)

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type Field Description

static java.lang.String FILE_EXTENSION_COMPRESSED
the extension for compressed files
- Fields inherited from interface weka.core.converters.Loader
  BATCH, INCREMENTAL, NONE

Constructor Summary

Constructors
Constructor Description

AbstractFileLoader()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`getUseRelativePath()`	Gets whether relative paths are to be used
`void`	`reset()`	Resets the loader ready to read a new data set
`java.io.File`	`retrieveFile()`	get the File specified as the source
`static void`	`runFileLoader(AbstractFileLoader loader, java.lang.String[] options)`	runs the given loader with the provided options
`void`	`setEnvironment(Environment env)`	Set the environment variables to use.
`void`	`setFile(java.io.File file)`	sets the source File
`void`	`setSource(java.io.File file)`	Resets the Loader object and sets the source of the data set to be the supplied File object.
`void`	`setUseRelativePath(boolean rp)`	Set whether to use relative rather than absolute paths
`java.lang.String`	`useRelativePathTipText()`	Tip text suitable for displaying int the GUI

Methods inherited from class weka.core.converters.AbstractLoader
getDataSet, getNextInstance, getStructure, setRetrieval, setSource

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface weka.core.converters.FileSourcedConverter
getFileDescription, getFileExtension, getFileExtensions

Methods inherited from interface weka.core.RevisionHandler
getRevision

- Field Detail
  - FILE_EXTENSION_COMPRESSED
```
public static java.lang.String FILE_EXTENSION_COMPRESSED
```
    the extension for compressed files
- Constructor Detail
  - AbstractFileLoader
```
public AbstractFileLoader()
```
- Method Detail
  - retrieveFile
```
public java.io.File retrieveFile()
```
    get the File specified as the source
    
    Specified by:
    
    retrieveFile in interface FileSourcedConverter
    
    Returns:
    
    the source file
  - setFile
```
public void setFile(java.io.File file)
             throws java.io.IOException
```
    sets the source File
    
    Specified by:
    
    setFile in interface FileSourcedConverter
    
    Parameters:
    
    file - the source file
    
    Throws:
    
    java.io.IOException - if an error occurs
  - setEnvironment
```
public void setEnvironment(Environment env)
```
    Set the environment variables to use.
    
    Specified by:
    
    setEnvironment in interface EnvironmentHandler
    
    Parameters:
    
    env - the environment variables to use
  - reset
```
public void reset()
           throws java.io.IOException
```
    Resets the loader ready to read a new data set
    
    Specified by:
    
    reset in interface Loader
    
    Overrides:
    
    reset in class AbstractLoader
    
    Throws:
    
    java.io.IOException - if something goes wrong
  - setSource
```
public void setSource(java.io.File file)
               throws java.io.IOException
```
    Resets the Loader object and sets the source of the data set to be the supplied File object.
    
    Specified by:
    
    setSource in interface Loader
    
    Overrides:
    
    setSource in class AbstractLoader
    
    Parameters:
    
    file - the source file.
    
    Throws:
    
    java.io.IOException - if an error occurs
  - useRelativePathTipText
```
public java.lang.String useRelativePathTipText()
```
    Tip text suitable for displaying int the GUI
    
    Returns:
    
    a description of this property as a String
  - setUseRelativePath
```
public void setUseRelativePath(boolean rp)
```
    Set whether to use relative rather than absolute paths
    
    Specified by:
    
    setUseRelativePath in interface FileSourcedConverter
    
    Parameters:
    
    rp - true if relative paths are to be used
  - getUseRelativePath
```
public boolean getUseRelativePath()
```
    Gets whether relative paths are to be used
    
    Specified by:
    
    getUseRelativePath in interface FileSourcedConverter
    
    Returns:
    
    true if relative paths are to be used
  - runFileLoader
```
public static void runFileLoader(AbstractFileLoader loader,
                                 java.lang.String[] options)
```
    runs the given loader with the provided options
    
    Parameters:
    
    loader - the loader to run
    
    options - the commandline options, first argument must be the file to load

Class AbstractFileLoader

Field Summary

Fields inherited from interface weka.core.converters.Loader

Constructor Summary

Method Summary

Methods inherited from class weka.core.converters.AbstractLoader

Methods inherited from class java.lang.Object

Methods inherited from interface weka.core.converters.FileSourcedConverter

Methods inherited from interface weka.core.RevisionHandler

Field Detail

FILE_EXTENSION_COMPRESSED

Constructor Detail

AbstractFileLoader

Method Detail

retrieveFile

setFile

setEnvironment

reset

setSource

useRelativePathTipText

setUseRelativePath

getUseRelativePath

runFileLoader