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## javax.sound.midi.spi
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
`MidiFileWriter()`

Method Summary
`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 inherited from 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.

### 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`

### 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
  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
  See Also:
    `isFileTypeSupported(int, Sequence)`, `getMidiFileTypes(Sequence)`

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.