com.bigdata.sparse

Class TPSTupleSerializer

java.lang.Object

com.bigdata.btree.DefaultTupleSerializer<Void,TPS>

com.bigdata.sparse.TPSTupleSerializer

All Implemented Interfaces:

ITupleSerializer<Void,TPS>, IKeyBuilderFactory, Externalizable, Serializable

public class TPSTupleSerializer
extends DefaultTupleSerializer<Void,TPS>

Helper class for (de-)serializing logical rows for AtomicRowFilter.

Version:

$Id$

Author:

Bryan Thompson

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
TPSTupleSerializer() De-serializator ctor.
TPSTupleSerializer(IKeyBuilderFactory keyBuilderFactory)

Method Summary

Methods

Modifier and Type	Method and Description
TPS	deserialize(ITuple tuple) De-serializes an object from the value stored in the tuple (ignores the key stored in the tuple).
Void	deserializeKey(ITuple tuple) You can get the Schema and the primary key from deserialize(ITuple).
static ITupleSerializer<Void,TPS>	newInstance()
void	readExternal(ObjectInput in)
byte[]	serializeKey(Object obj) This method is not used since we do not store TPS objects directly in a BTree.
byte[]	serializeVal(TPS obj) Serializes the object as a byte[] using Java default serialization.
void	writeExternal(ObjectOutput out)

Methods inherited from class com.bigdata.btree.DefaultTupleSerializer

getDefaultKeyBuilderFactory, getDefaultLeafKeysCoder, getDefaultValuesCoder, getKeyBuilder, getLeafKeysCoder, getLeafValuesCoder, getPrimaryKeyBuilder, setLeafKeysCoder, setLeafValuesCoder, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

TPSTupleSerializer

public TPSTupleSerializer()

De-serializator ctor.

TPSTupleSerializer

public TPSTupleSerializer(IKeyBuilderFactory keyBuilderFactory)

Method Detail

newInstance

public static ITupleSerializer<Void,TPS> newInstance()

serializeKey

public byte[] serializeKey(Object obj)

This method is not used since we do not store TPS objects directly in a BTree.

Specified by:

serializeKey in interface ITupleSerializer<Void,TPS>

Overrides:

serializeKey in class DefaultTupleSerializer<Void,TPS>

Parameters:

obj - A object (MAY NOT be null).

Returns:

An unsigned byte[] which places the object into the total sort order for the index and never null ( null keys are not allowed into an index).

Throws:

UnsupportedOperationException - always.

serializeVal

public byte[] serializeVal(TPS obj)

Description copied from class: DefaultTupleSerializer

Serializes the object as a byte[] using Java default serialization.

Specified by:

serializeVal in interface ITupleSerializer<Void,TPS>

Overrides:

serializeVal in class DefaultTupleSerializer<Void,TPS>

Parameters:

obj - The object to be serialized (MAY be null).

Returns:

The serialized representation of the object as a byte[] -or- null if the reference is null.

deserialize

public TPS deserialize(ITuple tuple)

Description copied from class: DefaultTupleSerializer

De-serializes an object from the value stored in the tuple (ignores the key stored in the tuple).

Specified by:

deserialize in interface ITupleSerializer<Void,TPS>

Overrides:

deserialize in class DefaultTupleSerializer<Void,TPS>

Parameters:

tuple - The tuple.

Returns:

The de-serialized object.

deserializeKey

public Void deserializeKey(ITuple tuple)

You can get the Schema and the primary key from deserialize(ITuple).

Specified by:

deserializeKey in interface ITupleSerializer<Void,TPS>

Overrides:

deserializeKey in class DefaultTupleSerializer<Void,TPS>

Throws:

UnsupportedOperationException - always.

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class DefaultTupleSerializer<Void,TPS>

Throws:

IOException

ClassNotFoundException

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class DefaultTupleSerializer<Void,TPS>

Throws:

IOException