Package net.didion.jwnl.princeton.file

Class PrincetonObjectDictionaryFile

java.lang.Object

net.didion.jwnl.dictionary.file.AbstractDictionaryFile

net.didion.jwnl.princeton.file.AbstractPrincetonDictionaryFile

net.didion.jwnl.princeton.file.PrincetonObjectDictionaryFile

All Implemented Interfaces:

DictionaryFile, ObjectDictionaryFile

public class PrincetonObjectDictionaryFile
extends AbstractPrincetonDictionaryFile
implements ObjectDictionaryFile

ObjectDictionaryFile that accesses files names with the Princeton dictionary file naming convention.

Field Summary

Fields

Modifier and Type	Field	Description
private File	_file
private ObjectInputStream	_in
private ObjectOutputStream	_out

Fields inherited from interface net.didion.jwnl.dictionary.file.DictionaryFile

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Constructor Summary

Constructors

Constructor	Description
PrincetonObjectDictionaryFile()
PrincetonObjectDictionaryFile(String path, POS pos, DictionaryFileType fileType)

Method Summary

Modifier and Type	Method	Description
boolean	canRead()
boolean	canWrite()
void	close()	Close the file
ObjectInputStream	getInputStream()
ObjectOutputStream	getOutputStream()
boolean	isOpen()	Return true if the file is open
DictionaryFile	newInstance(String path, POS pos, DictionaryFileType fileType)	Create a new instance of the dictionary file
protected void	openFile(File path)	Here we try to be intelligent about opening streams.
private void	openInputStream()
private void	openOutputStream()
void	openStreams()	Open the input and output streams.
Object	readObject()	Read and deserialize an object from the file
void	writeObject(Object obj)	Serialize and write an object ot the file.

Methods inherited from class net.didion.jwnl.princeton.file.AbstractPrincetonDictionaryFile

makeFilename

Methods inherited from class net.didion.jwnl.dictionary.file.AbstractDictionaryFile

getFile, getFileType, getPOS, open

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.didion.jwnl.dictionary.file.DictionaryFile

getFile, getFileType, getPOS, open

Field Details

_file

private File _file

_in

private ObjectInputStream _in

_out

private ObjectOutputStream _out

Constructor Details

PrincetonObjectDictionaryFile

public PrincetonObjectDictionaryFile()

PrincetonObjectDictionaryFile

public PrincetonObjectDictionaryFile(String path,
 POS pos,
 DictionaryFileType fileType)

Method Details

newInstance

public DictionaryFile newInstance(String path,
 POS pos,
 DictionaryFileType fileType)

Description copied from interface: DictionaryFile

Create a new instance of the dictionary file

Specified by:

newInstance in interface DictionaryFile

isOpen

public boolean isOpen()

Description copied from interface: DictionaryFile

Return true if the file is open

Specified by:

isOpen in interface DictionaryFile

close

public void close()

Description copied from interface: DictionaryFile

Close the file

Specified by:

close in interface DictionaryFile

openStreams

public void openStreams()
                 throws IOException

Open the input and output streams.

Throws:

IOException

openOutputStream

private void openOutputStream()
                       throws IOException

Throws:

IOException

openInputStream

private void openInputStream()
                      throws IOException

Throws:

IOException

getInputStream

public ObjectInputStream getInputStream()
                                 throws IOException

Throws:

IOException

getOutputStream

public ObjectOutputStream getOutputStream()
                                   throws IOException

Throws:

IOException

canRead

public boolean canRead()

canWrite

public boolean canWrite()

readObject

public Object readObject()
                  throws IOException,
ClassNotFoundException

Description copied from interface: ObjectDictionaryFile

Read and deserialize an object from the file

Specified by:

readObject in interface ObjectDictionaryFile

Throws:

IOException

ClassNotFoundException

writeObject

public void writeObject(Object obj)
                 throws IOException

Description copied from interface: ObjectDictionaryFile

Serialize and write an object ot the file.

Specified by:

writeObject in interface ObjectDictionaryFile

Throws:

IOException

openFile

protected void openFile(File path)
                 throws IOException

Here we try to be intelligent about opening streams. If the file does not already exist, we assume that we are going to be creating it and writing to it, otherwise we assume that we are going to be reading from it. If you want the other stream open, you must do it explicitly by calling openStreams.

Specified by:

openFile in class AbstractDictionaryFile

Throws:

IOException