All Superinterfaces:

AutoCloseable, DataOutput

All Known Implementing Classes:

ObjectOutputStream

public interface ObjectOutput
extends DataOutput, AutoCloseable

ObjectOutput extends the DataOutput interface to include writing of objects. DataOutput includes methods for output of primitive types, ObjectOutput extends that interface to include objects, arrays, and Strings.

Since:

1.1

See Also:

InputStream, ObjectOutputStream, ObjectInputStream

• Method Summary

  Modifier and Type	Method	Description
  void	close()	Closes the stream.
  void	flush()	Flushes the stream.
  void	write​(byte[] b)	Writes an array of bytes.
  void	write​(byte[] b, int off, int len)	Writes a sub array of bytes.
  void	write​(int b)	Writes a byte.
  void	writeObject​(Object obj)	Write an object to the underlying storage or stream.

  Methods declared in interface java.io.DataOutput

  writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTF

• Method Details

  • writeObject

    Write an object to the underlying storage or stream. The class that implements this interface defines how the object is written.

    Parameters:

    obj - the object to be written

    Throws:

    IOException - Any of the usual Input/Output related exceptions.

  • write

    Writes a byte. This method will block until the byte is actually written.

    Specified by:

    write in interface DataOutput

    Parameters:

    b - the byte

    Throws:

    IOException - If an I/O error has occurred.

  • write

    Writes an array of bytes. This method will block until the bytes are actually written.

    Specified by:

    write in interface DataOutput

    Parameters:

    b - the data to be written

    Throws:

    IOException - If an I/O error has occurred.

  • write

    void write​(byte[] b, int off, int len) throws IOException

    Writes a sub array of bytes.

    Specified by:

    write in interface DataOutput

    Parameters:

    b - the data to be written

    off - the start offset in the data

    len - the number of bytes that are written

    Throws:

    IOException - If an I/O error has occurred.

  • flush

    Flushes the stream. This will write any buffered output bytes.

    Throws:

    IOException - If an I/O error has occurred.

  • close

    Closes the stream. This method must be called to release any resources associated with the stream.

    Specified by:

    close in interface AutoCloseable

    Throws:

    IOException - If an I/O error has occurred.