File	Doc	Category	Size	Date	Package
FileDataSource.java	API Doc	Glassfish v2 API	6151	Mon May 14 15:29:52 BST 2007	javax.activation

FileDataSource

• java.lang.Object

Fields Summary
private File	_file
private FileTypeMap	typeMap

Constructors Summary
public FileDataSource(File file) Creates a FileDataSource from a File object. Note: The file will not actually be opened until a method is called that requires the file to be opened. param file the file _file = file; // save the file Object...
public FileDataSource(String name) Creates a FileDataSource from the specified path name. Note: The file will not actually be opened until a method is called that requires the file to be opened. param name the system-dependent file name. this(new File(name)); // use the file constructor

Methods Summary
public java.lang.String	getContentType() This method returns the MIME type of the data in the form of a string. This method uses the currently installed FileTypeMap. If there is no FileTypeMap explictly set, the FileDataSource will call the getDefaultFileTypeMap method on FileTypeMap to acquire a default FileTypeMap. Note: By default, the FileTypeMap used will be a MimetypesFileTypeMap. return the MIME Type see javax.activation.FileTypeMap#getDefaultFileTypeMap // check to see if the type map is null? if (typeMap == null) return FileTypeMap.getDefaultFileTypeMap().getContentType(_file); else return typeMap.getContentType(_file);
public java.io.File	getFile() Return the File object that corresponds to this FileDataSource. return the File object for the file represented by this object. return _file;
public java.io.InputStream	getInputStream() This method will return an InputStream representing the the data and will throw an IOException if it can not do so. This method will return a new instance of InputStream with each invocation. return an InputStream return new FileInputStream(_file);
public java.lang.String	getName() Return the name of this object. The FileDataSource will return the file name of the object. return the name of the object. see javax.activation.DataSource return _file.getName();
public java.io.OutputStream	getOutputStream() This method will return an OutputStream representing the the data and will throw an IOException if it can not do so. This method will return a new instance of OutputStream with each invocation. return an OutputStream return new FileOutputStream(_file);
public void	setFileTypeMap(javax.activation.FileTypeMap map) Set the FileTypeMap to use with this FileDataSource param map The FileTypeMap for this object. typeMap = map;