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

Class CacheObjectUtils

java.lang.Object

org.apache.ignite.internal.processors.cache.CacheObjectUtils

public class CacheObjectUtils
extends Object

Cache object utility methods.

Field Summary

Fields

Modifier and Type	Field	Description
protected static int	HEAD_SIZE	Head size.

Method Summary

Modifier and Type	Method	Description
static int	objectPutSize(int dataLen)
static boolean	putValue(byte cacheObjType, ByteBuffer buf, int off, int len, byte[] valBytes, int start)
static Collection<Object>	unwrapBinariesIfNeeded(CacheObjectValueContext ctx, Collection<?> col, boolean keepBinary)
static Object	unwrapBinary(CacheObjectValueContext ctx, Object o, boolean keepBinary, boolean cpy, @Nullable ClassLoader ldr)	Unwraps an object for end user.
static Object	unwrapBinaryIfNeeded(CacheObjectValueContext ctx, Object o, boolean keepBinary, boolean cpy, @Nullable ClassLoader ldr)
static Object	unwrapBinaryIfNeeded(CacheObjectValueContext ctx, CacheObject o, boolean keepBinary, boolean cpy)

Methods inherited from class java.lang.Object

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

Field Detail

HEAD_SIZE

protected static final int HEAD_SIZE

Head size.

See Also:

Constant Field Values

Method Detail

unwrapBinaryIfNeeded

public static Object unwrapBinaryIfNeeded(CacheObjectValueContext ctx,
                                          CacheObject o,
                                          boolean keepBinary,
                                          boolean cpy)

Parameters:

o - Object to unwrap.

keepBinary - Keep binary flag.

cpy - Copy value flag.

Returns:

Unwrapped object.

unwrapBinaryIfNeeded

public static Object unwrapBinaryIfNeeded(CacheObjectValueContext ctx,
                                          Object o,
                                          boolean keepBinary,
                                          boolean cpy,
                                          @Nullable
                                          @Nullable ClassLoader ldr)

Parameters:

ctx - Cache object context.

o - Object to unwrap.

keepBinary - Keep binary flag.

cpy - Copy value flag.

ldr - Class loader, used for deserialization from binary representation.

Returns:

Unwrapped object.

unwrapBinariesIfNeeded

public static Collection<Object> unwrapBinariesIfNeeded(CacheObjectValueContext ctx,
                                                        Collection<?> col,
                                                        boolean keepBinary)

Parameters:

col - Collection of objects to unwrap.

keepBinary - Keep binary flag.

Returns:

Unwrapped collection.

unwrapBinary

public static Object unwrapBinary(CacheObjectValueContext ctx,
                                  Object o,
                                  boolean keepBinary,
                                  boolean cpy,
                                  @Nullable
                                  @Nullable ClassLoader ldr)

Unwraps an object for end user.

Parameters:

ctx - Cache object context.

o - Object to unwrap.

keepBinary - False when need to deserialize object from a binary one, true otherwise.

cpy - True means the object will be copied before return, false otherwise.

ldr - Class loader, used for deserialization from binary representation.

Returns:

Unwrapped 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.