Package com.sleepycat.bind.serial

Class TupleSerialMarshalledBinding<E extends MarshalledTupleKeyEntity>

java.lang.Object

com.sleepycat.bind.tuple.TupleBase

com.sleepycat.bind.serial.TupleSerialBinding<E,E>

com.sleepycat.bind.serial.TupleSerialMarshalledBinding<E>

All Implemented Interfaces:

EntityBinding<E>

public class TupleSerialMarshalledBinding<E extends MarshalledTupleKeyEntity>
extends TupleSerialBinding<E,E>

A concrete TupleSerialBinding that delegates to the MarshalledTupleKeyEntity interface of the entity class.

The MarshalledTupleKeyEntity interface must be implemented by the entity class to convert between the key/data entry and entity object.

The binding is "tricky" in that it uses the entity class for both the stored data entry and the combined entity object. To do this, the entity's key field(s) are transient and are set by the binding after the data object has been deserialized. This avoids the use of a "data" class completely.

See Also:

• MarshalledTupleKeyEntity
• Class Evolution

Field Summary

Fields inherited from class com.sleepycat.bind.serial.TupleSerialBinding

dataBinding

Constructor Summary

Constructors

Constructor	Description
TupleSerialMarshalledBinding(ClassCatalog classCatalog, Class<E> baseClass)	Creates a tuple-serial marshalled binding object.
TupleSerialMarshalledBinding(SerialBinding<E> dataBinding)	Creates a tuple-serial marshalled binding object.

Method Summary

Modifier and Type	Method	Description
E	entryToObject(TupleInput tupleInput, E javaInput)	Constructs an entity object from TupleInput key entry and deserialized data entry objects.
E	objectToData(E object)	Extracts a data object from an entity object.
void	objectToKey(E object, TupleOutput output)	Extracts a key tuple from an entity object.

Methods inherited from class com.sleepycat.bind.serial.TupleSerialBinding

entryToObject, objectToData, objectToKey

Methods inherited from class com.sleepycat.bind.tuple.TupleBase

entryToInput, getTupleBufferSize, getTupleOutput, inputToEntry, newOutput, newOutput, outputToEntry, setTupleBufferSize

Methods inherited from class java.lang.Object

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

Constructor Details

TupleSerialMarshalledBinding

public TupleSerialMarshalledBinding(ClassCatalog classCatalog,
 Class<E> baseClass)

Creates a tuple-serial marshalled binding object.

Parameters:

classCatalog - is the catalog to hold shared class information and for a database should be a StoredClassCatalog.

baseClass - is the base class for serialized objects stored using this binding -- all objects using this binding must be an instance of this class.

TupleSerialMarshalledBinding

public TupleSerialMarshalledBinding(SerialBinding<E> dataBinding)

Creates a tuple-serial marshalled binding object.

Parameters:

dataBinding - is the binding used for serializing and deserializing the entity object.

Method Details

entryToObject

public E entryToObject(TupleInput tupleInput,
 E javaInput)

Description copied from class: TupleSerialBinding

Constructs an entity object from TupleInput key entry and deserialized data entry objects.

Specified by:

entryToObject in class TupleSerialBinding<E extends MarshalledTupleKeyEntity,E extends MarshalledTupleKeyEntity>

Parameters:

tupleInput - is the TupleInput key entry object.

javaInput - is the deserialized data entry object.

Returns:

the entity object constructed from the key and data.

objectToKey

public void objectToKey(E object,
 TupleOutput output)

Description copied from class: TupleSerialBinding

Extracts a key tuple from an entity object.

Specified by:

objectToKey in class TupleSerialBinding<E extends MarshalledTupleKeyEntity,E extends MarshalledTupleKeyEntity>

Parameters:

object - is the entity object.

output - is the TupleOutput to which the key should be written.

objectToData

public E objectToData(E object)

Description copied from class: TupleSerialBinding

Extracts a data object from an entity object.

Specified by:

objectToData in class TupleSerialBinding<E extends MarshalledTupleKeyEntity,E extends MarshalledTupleKeyEntity>

Parameters:

object - is the entity object.

Returns:

the deserialized data object.