com.sleepycat.bdb.bind.serial
Class SerialSerialBinding

java.lang.Object
  com.sleepycat.bdb.bind.serial.SerialSerialBinding

All Implemented Interfaces:

EntityBinding

public abstract class SerialSerialBinding
extends java.lang.Object
implements EntityBinding

An abstract entity binding that uses a serial key and a serial value. This class takes care of serializing and deserializing the key and value data automatically. Its three abstract methods must be implemented by a concrete subclass to convert the deserialized objects to/from an entity object.

• dataToObject(Object,Object)
• objectToKey(Object)
• objectToValue(Object)

Field Summary

protected SerialFormat	keyFormat
protected SerialFormat	valueFormat

Constructor Summary

SerialSerialBinding(SerialFormat keyFormat, SerialFormat valueFormat)
Creates a serial-serial entity binding.

Method Summary

java.lang.Object	dataToObject(DataBuffer key, DataBuffer value) Converts key and value data buffers into an entity Object.
abstract java.lang.Object	dataToObject(java.lang.Object keyInput, java.lang.Object valueInput) Constructs an entity object from deserialized key and value data objects.
DataFormat	getKeyFormat() Returns the format used for the key data of this binding.
DataFormat	getValueFormat() Returns the format used for the value data of this binding.
abstract java.lang.Object	objectToKey(java.lang.Object object) Extracts a key object from an entity object.
void	objectToKey(java.lang.Object object, DataBuffer key) Extracts the key data from an entity Object.
abstract java.lang.Object	objectToValue(java.lang.Object object) Extracts a value object from an entity object.
void	objectToValue(java.lang.Object object, DataBuffer value) Extracts the value data from an entity Object.

Methods inherited from class java.lang.Object

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

Field Detail

keyFormat

protected SerialFormat keyFormat

valueFormat

protected SerialFormat valueFormat

Constructor Detail

SerialSerialBinding

public SerialSerialBinding(SerialFormat keyFormat,
                           SerialFormat valueFormat)

Creates a serial-serial entity binding.

Parameters:

keyFormat - is the key format.

valueFormat - is the value format.

Method Detail

dataToObject

public java.lang.Object dataToObject(DataBuffer key,
                                     DataBuffer value)
                              throws java.io.IOException

Description copied from interface: EntityBinding

Converts key and value data buffers into an entity Object.

Specified by:

dataToObject in interface EntityBinding

Parameters:

key - is the source key data.

value - is the source value data.

Returns:

the resulting Object.

Throws:

java.io.IOException

objectToKey

public void objectToKey(java.lang.Object object,
                        DataBuffer key)
                 throws java.io.IOException

Description copied from interface: EntityBinding

Extracts the key data from an entity Object.

Specified by:

objectToKey in interface EntityBinding

Parameters:

object - is the source Object.

key - is the destination data buffer.

Throws:

java.io.IOException

objectToValue

public void objectToValue(java.lang.Object object,
                          DataBuffer value)
                   throws java.io.IOException

Description copied from interface: EntityBinding

Extracts the value data from an entity Object.

Specified by:

objectToValue in interface EntityBinding

Parameters:

object - is the source Object.

value - is the destination data buffer.

Throws:

java.io.IOException

getKeyFormat

public DataFormat getKeyFormat()

Description copied from interface: EntityBinding

Returns the format used for the key data of this binding.

Specified by:

getKeyFormat in interface EntityBinding

Returns:

the key data format.

getValueFormat

public DataFormat getValueFormat()

Description copied from interface: EntityBinding

Returns the format used for the value data of this binding.

Specified by:

getValueFormat in interface EntityBinding

Returns:

the value data format.

dataToObject

public abstract java.lang.Object dataToObject(java.lang.Object keyInput,
                                              java.lang.Object valueInput)
                                       throws java.io.IOException

Constructs an entity object from deserialized key and value data objects.

Parameters:

keyInput - is the deserialized key data object.

valueInput - is the deserialized value data object.

Returns:

the entity object constructed from the key and value.

Throws:

java.io.IOException

objectToKey

public abstract java.lang.Object objectToKey(java.lang.Object object)
                                      throws java.io.IOException

Extracts a key object from an entity object.

Parameters:

object - is the entity object.

Returns:

the deserialized key data object.

Throws:

java.io.IOException

objectToValue

public abstract java.lang.Object objectToValue(java.lang.Object object)
                                        throws java.io.IOException

Extracts a value object from an entity object.

Parameters:

object - is the entity object.

Returns:

the deserialized value data object.

Throws:

java.io.IOException