com.sleepycat.bdb.bind.tuple
Class TupleTupleMarshalledBinding

java.lang.Object
  |
  +--com.sleepycat.bdb.bind.tuple.TupleTupleBinding
        |
        +--com.sleepycat.bdb.bind.tuple.TupleTupleMarshalledBinding

All Implemented Interfaces:

EntityBinding

public class TupleTupleMarshalledBinding

extends TupleTupleBinding

A concrete entity binding that uses the MarshalledTupleData and the MarshalledTupleKeyEntity interfaces. It calls the methods of the MarshalledTupleData interface to convert between the value data and entity object. It calls the methods of the MarshalledTupleKeyEntity interface to convert between the key data and the entity object. These two interfaces must both be implemented by the entity class

Constructor Summary

TupleTupleMarshalledBinding(TupleFormat keyFormat, TupleFormat valueFormat, Class cls)
Creates a tuple-tuple marshalled binding object.

Method Summary

Object	dataToObject(TupleInput keyInput, TupleInput valueInput) Constructs an entity object from TupleInput key and value data objects.
void	objectToKey(Object object, TupleOutput output) Extracts a key tuple from an entity object.
void	objectToValue(Object object, TupleOutput output) Extracts a key tuple from an entity object.

Methods inherited from class com.sleepycat.bdb.bind.tuple.TupleTupleBinding

dataToObject, getKeyFormat, getValueFormat, objectToKey, objectToValue

Methods inherited from class java.lang.Object

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

Constructor Detail

TupleTupleMarshalledBinding

public TupleTupleMarshalledBinding(TupleFormat keyFormat,
                                   TupleFormat valueFormat,
                                   Class cls)

Creates a tuple-tuple marshalled binding object.

The given class is used to instantiate entity objects using Class.forName(java.lang.String), and therefore must be a public class and have a public no-arguments constructor. It must also implement the MarshalledTupleData and MarshalledTupleKeyEntity interfaces.

Parameters:

keyFormat - is the stored data key format.

valueFormat - is the stored data value format.

cls - is the class of the entity objects.

Method Detail

dataToObject

public Object dataToObject(TupleInput keyInput,
                           TupleInput valueInput)
                    throws IOException

Description copied from class: TupleTupleBinding

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

Specified by:

dataToObject in class TupleTupleBinding

Parameters:

keyInput - is the TupleInput key data object.

valueInput - is the TupleInput value data object.

Returns:

the entity object constructed from the key and value.

IOException

objectToKey

public void objectToKey(Object object,
                        TupleOutput output)
                 throws IOException

Description copied from class: TupleTupleBinding

Extracts a key tuple from an entity object.

Specified by:

objectToKey in class TupleTupleBinding

Parameters:

object - is the entity object.

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

IOException

objectToValue

public void objectToValue(Object object,
                          TupleOutput output)
                   throws IOException

Description copied from class: TupleTupleBinding

Extracts a key tuple from an entity object.

Specified by:

objectToValue in class TupleTupleBinding

Parameters:

object - is the entity object.

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

IOException