CH.ifa.draw.util

Interface StorageFormat

All Known Implementing Classes:

SerializationStorageFormat, StandardStorageFormat

public interface StorageFormat

Interface to define a storage format. A StorageFormat is a strategy that knows how to store and restore a Drawing according to a specific encoding. Typically it can be recognized by a file extension. To identify a valid file format for a Drawing an appropriate FileFilter for a javax.swing.JFileChooser component can be requested.

See Also:

Drawing, StorageFormatManager

Method Summary

Modifier and Type	Method and Description
javax.swing.filechooser.FileFilter	getFileFilter() Return a FileFilter that can be used to identify files which can be stored and restored with this Storage Format.
Drawing	restore(java.lang.String fileName) Restore a Drawing from a file with a given name.
java.lang.String	store(java.lang.String fileName, Drawing saveDrawing) Store a Drawing under a given name.

Method Detail

getFileFilter

javax.swing.filechooser.FileFilter getFileFilter()

Return a FileFilter that can be used to identify files which can be stored and restored with this Storage Format. Typically, each storage format has its own recognizable file extension.

Returns:

FileFilter to be used with a javax.swing.JFileChooser

store

java.lang.String store(java.lang.String fileName,
                       Drawing saveDrawing)
                throws java.io.IOException

Store a Drawing under a given name.

Parameters:

fileName - file name of the Drawing under which it should be stored

saveDrawing - drawing to be saved

Returns:

file name with correct file extension

Throws:

java.io.IOException

restore

Drawing restore(java.lang.String fileName)
         throws java.io.IOException

Restore a Drawing from a file with a given name.

Parameters:

name - of the file in which the Drawing has been saved

Returns:

restored Drawing

Throws:

java.io.IOException