Class MidiFileWriter

java.lang.Object
- javax.sound.midi.spi.MidiFileWriter

public abstract class MidiFileWriter
extends Object

A MidiFileWriter supplies MIDI file-writing services. Classes that implement this interface can write one or more types of MIDI file from a Sequence object.

Since:: 1.3

Constructor Summary

Constructors
Constructor	Description
`MidiFileWriter()`

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract int[]`	`getMidiFileTypes()`	Obtains the set of MIDI file types for which file writing support is provided by this file writer.
`abstract int[]`	`getMidiFileTypes(Sequence sequence)`	Obtains the file types that this file writer can write from the sequence specified.
`boolean`	`isFileTypeSupported(int fileType)`	Indicates whether file writing support for the specified MIDI file type is provided by this file writer.
`boolean`	`isFileTypeSupported(int fileType, Sequence sequence)`	Indicates whether a MIDI file of the file type specified can be written from the sequence indicated.
`abstract int`	`write(Sequence in, int fileType, File out)`	Writes a stream of bytes representing a MIDI file of the file type indicated to the external file provided.
`abstract int`	`write(Sequence in, int fileType, OutputStream out)`	Writes a stream of bytes representing a MIDI file of the file type indicated to the output stream provided.

Methods declared in class java.lang.Object

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

Constructor Detail

MidiFileWriter

public MidiFileWriter()

Method Detail

getMidiFileTypes

public abstract int[] getMidiFileTypes()

Obtains the set of MIDI file types for which file writing support is provided by this file writer.

Returns:: array of file types. If no file types are supported, an array of length 0 is returned.

getMidiFileTypes

public abstract int[] getMidiFileTypes(Sequence sequence)

Obtains the file types that this file writer can write from the sequence specified.

Parameters:: sequence - the sequence for which MIDI file type support is queried
Returns:: array of file types. If no file types are supported, returns an array of length 0.
Throws:: NullPointerException - if sequence is null

isFileTypeSupported

public boolean isFileTypeSupported(int fileType)

Indicates whether file writing support for the specified MIDI file type is provided by this file writer.

Parameters:: fileType - the file type for which write capabilities are queried
Returns:: true if the file type is supported, otherwise false

isFileTypeSupported

public boolean isFileTypeSupported(int fileType,
                                   Sequence sequence)

Indicates whether a MIDI file of the file type specified can be written from the sequence indicated.

Parameters:: fileType - the file type for which write capabilities are queried; sequence - the sequence for which file writing support is queried
Returns:: true if the file type is supported for this sequence, otherwise false
Throws:: NullPointerException - if sequence is null

write

public abstract int write(Sequence in,
                          int fileType,
                          OutputStream out)
                   throws IOException

Writes a stream of bytes representing a MIDI file of the file type indicated to the output stream provided.

Parameters:: in - sequence containing MIDI data to be written to the file; fileType - type of the file to be written to the output stream; out - stream to which the file data should be written
Returns:: the number of bytes written to the output stream
Throws:: IOException - if an I/O exception occurs; IllegalArgumentException - if the file type is not supported by this file writer; NullPointerException - if in or out are null
See Also:: isFileTypeSupported(int, Sequence), getMidiFileTypes(Sequence)

write

public abstract int write(Sequence in,
                          int fileType,
                          File out)
                   throws IOException

Writes a stream of bytes representing a MIDI file of the file type indicated to the external file provided.

Parameters:: in - sequence containing MIDI data to be written to the external file; fileType - type of the file to be written to the external file; out - external file to which the file data should be written
Returns:: the number of bytes written to the file
Throws:: IOException - if an I/O exception occurs; IllegalArgumentException - if the file type is not supported by this file writer; NullPointerException - if in or out are null
See Also:: isFileTypeSupported(int, Sequence), getMidiFileTypes(Sequence)