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.
InputStream
, ObjectOutputStream
, ObjectInputStream
void writeObject(Object obj) throws IOException
Write an object to the underlying storage or stream. The class that implements this interface defines how the object is written.
obj
- the object to be writtenIOException
- Any of the usual Input/Output related exceptions.void write(int b) throws IOException
Writes a byte. This method will block until the byte is actually written.
write
in interface DataOutput
b
- the byteIOException
- If an I/O error has occurred.void write(byte[] b) throws IOException
Writes an array of bytes. This method will block until the bytes are actually written.
write
in interface DataOutput
b
- the data to be writtenIOException
- If an I/O error has occurred.void write(byte[] b, int off, int len) throws IOException
Writes a sub array of bytes.
write
in interface DataOutput
b
- the data to be writtenoff
- the start offset in the datalen
- the number of bytes that are writtenIOException
- If an I/O error has occurred.void flush() throws IOException
Flushes the stream. This will write any buffered output bytes.
IOException
- If an I/O error has occurred.void close() throws IOException
Closes the stream. This method must be called to release any resources associated with the stream.
close
in interface AutoCloseable
IOException
- If an I/O error has occurred.
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