Package com.db4o.internal.marshall

Class MarshallingContext

java.lang.Object

com.db4o.internal.marshall.MarshallingContext

All Implemented Interfaces:

AspectVersionContext, MarshallingInfo, Context, WriteBuffer, WriteContext

public class MarshallingContext
extends java.lang.Object
implements MarshallingInfo, WriteContext

Constructor Summary

Constructors

Constructor	Description
MarshallingContext(Transaction trans, ObjectReference ref, UpdateDepth updateDepth, boolean isNew)

Method Summary

Modifier and Type	Method	Description
void	addIndexEntry(FieldMetadata fieldMetadata, java.lang.Object obj)
Slot	allocateNewSlot(int length)
Pointer4	allocateSlot()
void	beginSlot()
ReadBuffer	buffer()
Config4Class	classConfiguration()
ClassMetadata	classMetadata()
ObjectContainerBase	container()
void	createChildBuffer(boolean storeLengthInLink)
void	createIndirectionWithinSlot()
void	createIndirectionWithinSlot(TypeHandler4 handler)
java.lang.Object	currentIndexEntry()
MarshallingContextState	currentState()
void	debugPrependNextWrite(ByteArrayBuffer prepend)
void	debugWriteEnd(byte b)
int	declaredAspectCount()
void	declaredAspectCount(int count)
java.lang.Object	getObject()
boolean	isNew()
boolean	isNull(int fieldIndex)
void	isNull(int fieldIndex, boolean flag)
int	marshalledLength()
ObjectContainer	objectContainer()
int	objectID()
void	purgeFieldIndexEntriesOnUpdate(Transaction transaction, ArrayType arrayType)
ObjectReference	reference()
int	requiredLength(MarshallingBuffer buffer, boolean align)
ReservedBuffer	reserve(int length)	reserves a buffer with a specific length at the current position, to be written in a later step.
void	restoreState(MarshallingContextState state)
ByteArrayBuffer	toWriteBuffer(Pointer4 pointer)
Transaction	transaction()
UpdateDepth	updateDepth()
void	updateDepth(UpdateDepth depth)
void	writeByte(byte b)	writes a single byte to the buffer.
void	writeBytes(byte[] bytes)	writes an array of bytes to the buffer
void	writeDeclaredAspectCount(int count)
void	writeInt(int i)	writes an int to the buffer.
void	writeLong(long l)	writes a long to the buffer
void	writeObject(TypeHandler4 handler, java.lang.Object obj)	writes sub-objects, in cases where the TypeHandler4 is known.
void	writeObject(java.lang.Object obj)	makes sure the object is stored and writes the ID of the object to the context.
void	writeObjectWithCurrentState(TypeHandler4 handler, java.lang.Object obj)

Methods inherited from class java.lang.Object

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

Constructor Detail

MarshallingContext

public MarshallingContext(Transaction trans,
                          ObjectReference ref,
                          UpdateDepth updateDepth,
                          boolean isNew)

Method Detail

classMetadata

public ClassMetadata classMetadata()

Specified by:

classMetadata in interface MarshallingInfo

isNew

public boolean isNew()

isNull

public boolean isNull(int fieldIndex)

Specified by:

isNull in interface MarshallingInfo

isNull

public void isNull(int fieldIndex,
                   boolean flag)

transaction

public Transaction transaction()

Specified by:

transaction in interface Context

allocateNewSlot

public Slot allocateNewSlot(int length)

allocateSlot

public Pointer4 allocateSlot()

toWriteBuffer

public ByteArrayBuffer toWriteBuffer(Pointer4 pointer)

marshalledLength

public int marshalledLength()

requiredLength

public int requiredLength(MarshallingBuffer buffer,
                          boolean align)

getObject

public java.lang.Object getObject()

classConfiguration

public Config4Class classConfiguration()

updateDepth

public UpdateDepth updateDepth()

updateDepth

public void updateDepth(UpdateDepth depth)

objectID

public int objectID()

currentIndexEntry

public java.lang.Object currentIndexEntry()

container

public ObjectContainerBase container()

objectContainer

public ObjectContainer objectContainer()

Specified by:

objectContainer in interface Context

writeByte

public void writeByte(byte b)

Description copied from interface: WriteBuffer

writes a single byte to the buffer.

Specified by:

writeByte in interface WriteBuffer

Parameters:

b - the byte

writeBytes

public void writeBytes(byte[] bytes)

Description copied from interface: WriteBuffer

writes an array of bytes to the buffer

Specified by:

writeBytes in interface WriteBuffer

Parameters:

bytes - the byte array

writeInt

public void writeInt(int i)

Description copied from interface: WriteBuffer

writes an int to the buffer.

Specified by:

writeInt in interface WriteBuffer

Parameters:

i - the int

writeLong

public void writeLong(long l)

Description copied from interface: WriteBuffer

writes a long to the buffer

Specified by:

writeLong in interface WriteBuffer

Parameters:

l - the long

createChildBuffer

public void createChildBuffer(boolean storeLengthInLink)

beginSlot

public void beginSlot()

Specified by:

beginSlot in interface MarshallingInfo

writeDeclaredAspectCount

public void writeDeclaredAspectCount(int count)

debugPrependNextWrite

public void debugPrependNextWrite(ByteArrayBuffer prepend)

debugWriteEnd

public void debugWriteEnd(byte b)

writeObject

public void writeObject(java.lang.Object obj)

Description copied from interface: WriteContext

makes sure the object is stored and writes the ID of the object to the context. Use this method for first class objects only (objects that have an identity in the database). If the object can potentially be a primitive type, do not use this method but use a matching WriteBuffer method instead.

Specified by:

writeObject in interface WriteContext

Parameters:

obj - the object to write.

writeObject

public void writeObject(TypeHandler4 handler,
                        java.lang.Object obj)

Description copied from interface: WriteContext

writes sub-objects, in cases where the TypeHandler4 is known.

Specified by:

writeObject in interface WriteContext

Parameters:

handler - typehandler to be used to write the object.

obj - the object to write

writeObjectWithCurrentState

public void writeObjectWithCurrentState(TypeHandler4 handler,
                                        java.lang.Object obj)

addIndexEntry

public void addIndexEntry(FieldMetadata fieldMetadata,
                          java.lang.Object obj)

purgeFieldIndexEntriesOnUpdate

public void purgeFieldIndexEntriesOnUpdate(Transaction transaction,
                                           ArrayType arrayType)

reference

public ObjectReference reference()

createIndirectionWithinSlot

public void createIndirectionWithinSlot(TypeHandler4 handler)

createIndirectionWithinSlot

public void createIndirectionWithinSlot()

buffer

public ReadBuffer buffer()

Specified by:

buffer in interface MarshallingInfo

currentState

public MarshallingContextState currentState()

restoreState

public void restoreState(MarshallingContextState state)

reserve

public ReservedBuffer reserve(int length)

Description copied from interface: WriteContext

reserves a buffer with a specific length at the current position, to be written in a later step.

Specified by:

reserve in interface WriteContext

Parameters:

length - the length to be reserved.

Returns:

the ReservedBuffer

declaredAspectCount

public int declaredAspectCount()

Specified by:

declaredAspectCount in interface AspectVersionContext

declaredAspectCount

public void declaredAspectCount(int count)

Specified by:

declaredAspectCount in interface AspectVersionContext