ObjectOutput (Java 2 Platform SE 5.0) (original) (raw)

java.io

Interface ObjectOutput

All Superinterfaces:

All Known Implementing Classes:

public interface ObjectOutput

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:

JDK1.1

Method Summary
void	close() Closes the stream.
void	flush() Flushes the stream.
void	write(byte[] b) Writes an array of bytes.
void	[write](../../java/io/ObjectOutput.html#write%28byte[], int, int%29)(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 inherited from interface java.io.DataOutput
writeBoolean, writeByte, writeBytes, writeChar, writeChars, writeDouble, writeFloat, writeInt, writeLong, writeShort, writeUTF

Method Detail

writeObject

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.

Parameters:

obj - the object to be written

Throws:

[IOException](../../java/io/IOException.html "class in java.io") - Any of the usual Input/Output related exceptions.

write

void write(int b) throws IOException

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

Specified by:

[write](../../java/io/DataOutput.html#write%28int%29) in interface [DataOutput](../../java/io/DataOutput.html "interface in java.io")

Parameters:

b - the byte

Throws:

[IOException](../../java/io/IOException.html "class in java.io") - If an I/O error has occurred.

write

void write(byte[] b) throws IOException

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

Specified by:

[write](../../java/io/DataOutput.html#write%28byte[]%29) in interface [DataOutput](../../java/io/DataOutput.html "interface in java.io")

Parameters:

b - the data to be written

Throws:

[IOException](../../java/io/IOException.html "class in java.io") - 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](../../java/io/DataOutput.html#write%28byte[], int, int%29) in interface [DataOutput](../../java/io/DataOutput.html "interface in java.io")

Parameters:

b - the data to be written

off - the start offset in the data

len - the number of bytes that are written

Throws:

[IOException](../../java/io/IOException.html "class in java.io") - If an I/O error has occurred.

flush

void flush() throws IOException

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

Throws:

[IOException](../../java/io/IOException.html "class in java.io") - If an I/O error has occurred.

close

void close() throws IOException

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

Throws:

[IOException](../../java/io/IOException.html "class in java.io") - If an I/O error has occurred.

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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.