Package com.db4o.internal

Class AbstractBufferContext

java.lang.Object

com.db4o.internal.AbstractBufferContext

All Implemented Interfaces:

HandlerVersionContext, BufferContext, Context, ReadBuffer

Direct Known Subclasses:

AbstractReadContext

public abstract class AbstractBufferContext
extends java.lang.Object
implements BufferContext, HandlerVersionContext

Constructor Summary

Constructors

Constructor	Description
AbstractBufferContext(Transaction transaction, ReadBuffer buffer)

Method Summary

Modifier and Type	Method	Description
ReadBuffer	buffer()
ReadBuffer	buffer(ReadBuffer buffer)
ObjectContainerBase	container()
abstract int	handlerVersion()
boolean	isLegacyHandlerVersion()
ObjectContainer	objectContainer()
int	offset()	returns the current offset in the buffer
BitMap4	readBitMap(int bitCount)
byte	readByte()	reads a byte from the buffer.
void	readBytes(byte[] bytes)	reads an array of bytes from the buffer.
int	readInt()	reads an int from the buffer.
long	readLong()	reads a long from the buffer.
void	seek(int offset)	positions the read pointer at the specified position
SlotFormat	slotFormat()
Transaction	transaction()

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractBufferContext

public AbstractBufferContext(Transaction transaction,
                             ReadBuffer buffer)

Method Detail

buffer

public ReadBuffer buffer(ReadBuffer buffer)

buffer

public ReadBuffer buffer()

Specified by:

buffer in interface BufferContext

readByte

public byte readByte()

Description copied from interface: ReadBuffer

reads a byte from the buffer.

Specified by:

readByte in interface ReadBuffer

Returns:

the byte

readBytes

public void readBytes(byte[] bytes)

Description copied from interface: ReadBuffer

reads an array of bytes from the buffer. The length of the array that is passed as a parameter specifies the number of bytes that are to be read. The passed bytes buffer parameter is directly filled.

Specified by:

readBytes in interface ReadBuffer

Parameters:

bytes - the byte array to read the bytes into.

readInt

public int readInt()

Description copied from interface: ReadBuffer

reads an int from the buffer.

Specified by:

readInt in interface ReadBuffer

Returns:

the int

readLong

public long readLong()

Description copied from interface: ReadBuffer

reads a long from the buffer.

Specified by:

readLong in interface ReadBuffer

Returns:

the long

offset

public int offset()

Description copied from interface: ReadBuffer

returns the current offset in the buffer

Specified by:

offset in interface ReadBuffer

Returns:

the offset

seek

public void seek(int offset)

Description copied from interface: ReadBuffer

positions the read pointer at the specified position

Specified by:

seek in interface ReadBuffer

Parameters:

offset - the desired position in the buffer

container

public ObjectContainerBase container()

objectContainer

public ObjectContainer objectContainer()

Specified by:

objectContainer in interface Context

transaction

public Transaction transaction()

Specified by:

transaction in interface Context

handlerVersion

public abstract int handlerVersion()

Specified by:

handlerVersion in interface HandlerVersionContext

isLegacyHandlerVersion

public boolean isLegacyHandlerVersion()

readBitMap

public BitMap4 readBitMap(int bitCount)

Specified by:

readBitMap in interface ReadBuffer

slotFormat

public SlotFormat slotFormat()

Specified by:

slotFormat in interface HandlerVersionContext