galileo.dataset

Class FileBlock

java.lang.Object

galileo.dataset.FileBlock

All Implemented Interfaces:

galileo.serialization.ByteSerializable

public class FileBlock
extends java.lang.Object
implements galileo.serialization.ByteSerializable

The basic unit of storage in Galileo.

Author:

malensek

Nested Class Summary

Nested classes/interfaces inherited from interface galileo.serialization.ByteSerializable

galileo.serialization.ByteSerializable.Deserialize

Constructor Summary

Constructors

Constructor and Description
FileBlock(byte[] data, BlockMetadata metadata) Construct a FileBlock (including metadata) from a byte array of data and a BlockMetadata object.
FileBlock(byte[] data, byte[] metadata) Construct a FileBlock from separate data, metadata streams.
FileBlock(galileo.serialization.SerializationInputStream in) Construct a complete FileBlock (including metadata) from a byte stream.

Method Summary

Modifier and Type	Method and Description
byte[]	getData() Get the data portion of the FileBlock.
BlockMetadata	getMetadata() Get this FileBlock's metadata.
void	serialize(galileo.serialization.SerializationOutputStream out)
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

FileBlock

public FileBlock(byte[] data,
                 BlockMetadata metadata)

Construct a FileBlock (including metadata) from a byte array of data and a BlockMetadata object.

Parameters:

data - Data for the new FileBlock

metadata - Metadata for the new FileBlock

FileBlock

public FileBlock(byte[] data,
                 byte[] metadata)
          throws java.io.IOException,
                 galileo.serialization.SerializationException

Construct a FileBlock from separate data, metadata streams.

Parameters:

data - Data for the new FileBlock

metadata - Metadata stream for the new FileBlock

Throws:

java.io.IOException

galileo.serialization.SerializationException

FileBlock

public FileBlock(galileo.serialization.SerializationInputStream in)
          throws java.io.IOException

Construct a complete FileBlock (including metadata) from a byte stream.

Parameters:

in - Stream to construct the FileBlock from.

Throws:

java.io.IOException

Method Detail

getMetadata

public BlockMetadata getMetadata()

Get this FileBlock's metadata.

Returns:

BlockMetadata

getData

public byte[] getData()

Get the data portion of the FileBlock.

Returns:

byte array containing the FileBlock's data.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

serialize

public void serialize(galileo.serialization.SerializationOutputStream out)
               throws java.io.IOException

Specified by:

serialize in interface galileo.serialization.ByteSerializable

Throws:

java.io.IOException