javax.activation.FileDataSource
The FileDataSource class implements a simple DataSource object that encapsulates a file. It provides data typing services via a FileTypeMap object.
FileDataSource Typing Semantics
The FileDataSource class delegates data typing of files to an object subclassed from the FileTypeMap class. The setFileTypeMap method can be used to explicitly set the FileTypeMap for an instance of FileDataSource. If no FileTypeMap is set, the FileDataSource will call the FileTypeMap's getDefaultFileTypeMap method to get the System's default FileTypeMap.
The FileDataSource class implements a simple DataSource object that encapsulates a file. It provides data typing services via a FileTypeMap object. FileDataSource Typing Semantics The FileDataSource class delegates data typing of files to an object subclassed from the FileTypeMap class. The setFileTypeMap method can be used to explicitly set the FileTypeMap for an instance of FileDataSource. If no FileTypeMap is set, the FileDataSource will call the FileTypeMap's getDefaultFileTypeMap method to get the System's default FileTypeMap.
->file-data-sourceclj
(->file-data-source file)Constructor.
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.
file - the file - java.io.File
Constructor. 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. file - the file - `java.io.File`
get-content-typeclj
(get-content-type this)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.
returns: the MIME Type - java.lang.String
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. returns: the MIME Type - `java.lang.String`
get-fileclj
(get-file this)Return the File object that corresponds to this FileDataSource.
returns: the File object for the file represented by this object. - java.io.File
Return the File object that corresponds to this FileDataSource. returns: the File object for the file represented by this object. - `java.io.File`
get-input-streamclj
(get-input-stream this)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.
returns: an InputStream - java.io.InputStream
throws: java.io.IOException
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. returns: an InputStream - `java.io.InputStream` throws: java.io.IOException
get-nameclj
(get-name this)Return the name of this object. The FileDataSource will return the file name of the object.
returns: the name of the object. - java.lang.String
Return the name of this object. The FileDataSource will return the file name of the object. returns: the name of the object. - `java.lang.String`
get-output-streamclj
(get-output-stream this)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.
returns: an OutputStream - java.io.OutputStream
throws: java.io.IOException
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. returns: an OutputStream - `java.io.OutputStream` throws: java.io.IOException
set-file-type-mapclj
(set-file-type-map this map)Set the FileTypeMap to use with this FileDataSource
map - The FileTypeMap for this object. - javax.activation.FileTypeMap
Set the FileTypeMap to use with this FileDataSource map - The FileTypeMap for this object. - `javax.activation.FileTypeMap`
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