Package org.apache.ignite.internal.processors.cache

Class CacheObjectAdapter

java.lang.Object

org.apache.ignite.internal.processors.cache.CacheObjectAdapter

All Implemented Interfaces:

Externalizable, Serializable, CacheObject, Message

Direct Known Subclasses:

CacheObjectImpl, KeyCacheObjectImpl

public abstract class CacheObjectAdapter
extends Object
implements CacheObject, Externalizable

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected static int	HEAD_SIZE	Head size.
protected Object	val
protected byte[]	valBytes

Fields inherited from interface org.apache.ignite.internal.processors.cache.CacheObject

TYPE_BINARY, TYPE_BINARY_ENUM, TYPE_BYTE_ARR, TYPE_REGULAR

Fields inherited from interface org.apache.ignite.plugin.extensions.communication.Message

DIRECT_TYPE_SIZE

Constructor Summary

Constructors

Constructor	Description
CacheObjectAdapter()

Method Summary

Modifier and Type	Method	Description
byte	cacheObjectType()
byte	fieldsCount()	Gets fields count.
protected boolean	needCopy(CacheObjectValueContext ctx)
static int	objectPutSize(int dataLen)
static boolean	putValue(byte cacheObjType, ByteBuffer buf, int off, int len, byte[] valBytes, int start)
int	putValue(long addr)
static int	putValue(long addr, byte type, byte[] valBytes)
static int	putValue(long addr, byte type, byte[] srcBytes, int srcOff, int len)
boolean	putValue(ByteBuffer buf)
boolean	putValue(ByteBuffer buf, int off, int len)
void	readExternal(ObjectInput in)
boolean	readFrom(ByteBuffer buf, MessageReader reader)	Reads this message from provided byte buffer.
String	toString()
protected byte[]	valueBytesFromValue(CacheObjectValueContext ctx)
int	valueBytesLength(CacheObjectContext ctx)
protected Object	valueFromValueBytes(CacheObjectValueContext ctx, ClassLoader ldr)
void	writeExternal(ObjectOutput out)
boolean	writeTo(ByteBuffer buf, MessageWriter writer)	Writes this message to provided byte buffer.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.ignite.internal.processors.cache.CacheObject

finishUnmarshal, isPlatformType, prepareForCache, prepareMarshal, value, value, valueBytes

Methods inherited from interface org.apache.ignite.plugin.extensions.communication.Message

directType, onAckReceived

Field Detail

HEAD_SIZE

protected static final int HEAD_SIZE

Head size.

See Also:

Constant Field Values

val

@GridToStringInclude(sensitive=true)
protected Object val

valBytes

protected byte[] valBytes

Constructor Detail

CacheObjectAdapter

public CacheObjectAdapter()

Method Detail

needCopy

protected boolean needCopy(CacheObjectValueContext ctx)

Parameters:

ctx - Context.

Returns:

True need to copy value returned to user.

valueBytesFromValue

protected byte[] valueBytesFromValue(CacheObjectValueContext ctx)
                              throws IgniteCheckedException

Returns:

Value bytes from value.

Throws:

IgniteCheckedException

valueFromValueBytes

protected Object valueFromValueBytes(CacheObjectValueContext ctx,
                                     ClassLoader ldr)
                              throws IgniteCheckedException

Returns:

Value from value bytes.

Throws:

IgniteCheckedException

cacheObjectType

public byte cacheObjectType()

Specified by:

cacheObjectType in interface CacheObject

Returns:

Object type.

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException

putValue

public boolean putValue(ByteBuffer buf)
                 throws IgniteCheckedException

Specified by:

putValue in interface CacheObject

Parameters:

buf - Buffer to write value to.

Returns:

True if value was successfully written, false if there was not enough space in the buffer.

Throws:

IgniteCheckedException - If failed.

putValue

public int putValue(long addr)
             throws IgniteCheckedException

Specified by:

putValue in interface CacheObject

Parameters:

addr - Address tp write value to.

Returns:

Number of bytes written.

Throws:

IgniteCheckedException - If failed.

putValue

public static int putValue(long addr,
                           byte type,
                           byte[] valBytes)

Parameters:

addr - Write address.

type - Object type.

valBytes - Value bytes array.

Returns:

Offset shift compared to initial address.

putValue

public static int putValue(long addr,
                           byte type,
                           byte[] srcBytes,
                           int srcOff,
                           int len)

Parameters:

addr - Write address.

type - Object type.

srcBytes - Source value bytes array.

srcOff - Start position in sourceBytes.

len - Number of bytes for write.

Returns:

Offset shift compared to initial address.

putValue

public boolean putValue(ByteBuffer buf,
                        int off,
                        int len)
                 throws IgniteCheckedException

Specified by:

putValue in interface CacheObject

Parameters:

buf - Buffer to write value to.

off - Offset in source binary data.

len - Length of the data to write.

Returns:

True if value was successfully written, false if there was not enough space in the buffer.

Throws:

IgniteCheckedException - If failed.

valueBytesLength

public int valueBytesLength(CacheObjectContext ctx)
                     throws IgniteCheckedException

Specified by:

valueBytesLength in interface CacheObject

Parameters:

ctx - Cache object context.

Returns:

Size required to store this value object.

Throws:

IgniteCheckedException - If failed.

readFrom

public boolean readFrom(ByteBuffer buf,
                        MessageReader reader)

Reads this message from provided byte buffer.

Specified by:

readFrom in interface Message

Parameters:

buf - Byte buffer.

reader - Reader.

Returns:

Whether message was fully read.

writeTo

public boolean writeTo(ByteBuffer buf,
                       MessageWriter writer)

Writes this message to provided byte buffer.

Specified by:

writeTo in interface Message

Parameters:

buf - Byte buffer.

writer - Writer.

Returns:

Whether message was fully written.

fieldsCount

public byte fieldsCount()

Gets fields count.

Specified by:

fieldsCount in interface Message

Returns:

Fields count.

toString

public String toString()

Overrides:

toString in class Object

objectPutSize

public static int objectPutSize(int dataLen)

Parameters:

dataLen - Serialized value length.

Returns:

Full size required to store cache object.

See Also:

putValue(byte, ByteBuffer, int, int, byte[], int)

putValue

public static boolean putValue(byte cacheObjType,
                               ByteBuffer buf,
                               int off,
                               int len,
                               byte[] valBytes,
                               int start)
                        throws IgniteCheckedException

Parameters:

cacheObjType - Cache object type.

buf - Buffer to write value to.

off - Offset in source binary data.

len - Length of the data to write.

valBytes - Binary data.

start - Start offset in binary data.

Returns:

True if data were successfully written.

Throws:

IgniteCheckedException - If failed.