Package java.io

Interface ObjectOutput

All Superinterfaces:

AutoCloseable, DataOutput

All Known Implementing Classes:

ObjectOutputStream

public interface ObjectOutput
extends DataOutput, AutoCloseable

Defines an interface for classes that allow writing serialized objects.

See Also:

ObjectOutputStream, ObjectInput

Method Summary

Modifier and Type	Method	Description
void	close()	Closes the target stream.
void	flush()	Flushes the target stream.
void	write(byte[] buffer)	Writes the entire contents of the byte array buffer to the output stream.
void	write(byte[] buffer, int offset, int count)	Writes count bytes from the byte array buffer starting at position offset to the target stream.
void	write(int value)	Writes a single byte to the target stream.
void	writeObject(Object obj)	Writes the specified object obj to the target stream.

Methods inherited from interface java.io.DataOutput

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

Method Detail

close

void close()
    throws IOException

Closes the target stream. Implementations of this method should free any resources used by the stream.

Specified by:

close in interface AutoCloseable

Throws:

IOException - if an error occurs while closing the target stream.

flush

void flush()
    throws IOException

Flushes the target stream. Implementations of this method should ensure that any pending writes are written out to the target stream.

Throws:

IOException - if an error occurs while flushing the target stream.

write

void write(byte[] buffer)
    throws IOException

Writes the entire contents of the byte array buffer to the output stream. Blocks until all bytes are written.

Specified by:

write in interface DataOutput

Parameters:

buffer - the buffer to write.

Throws:

IOException - if an error occurs while writing to the target stream.

write

void write(byte[] buffer,
           int offset,
           int count)
    throws IOException

Writes count bytes from the byte array buffer starting at position offset to the target stream. Blocks until all bytes are written.

Specified by:

write in interface DataOutput

Parameters:

buffer - the buffer to write.

offset - the index of the first byte in buffer to write.

count - the number of bytes from buffer to write to the target stream.

Throws:

IOException - if an error occurs while writing to the target stream.

write

void write(int value)
    throws IOException

Writes a single byte to the target stream. Only the least significant byte of the integer value is written to the stream. Blocks until the byte is actually written.

Specified by:

write in interface DataOutput

Parameters:

value - the byte to write.

Throws:

IOException - if an error occurs while writing to the target stream.

See Also:

DataInput.readByte()

writeObject

void writeObject(Object obj)
          throws IOException

Writes the specified object obj to the target stream.

Parameters:

obj - the object to write.

Throws:

IOException - if an error occurs while writing to the target stream.