com.hazelcast.nio.serialization

Class DefaultData

java.lang.Object

com.hazelcast.nio.serialization.DefaultData

public final class DefaultData
extends Object

Constructor Summary

Constructors

Constructor and Description
DefaultData()
DefaultData(int type, byte[] data)
DefaultData(int type, byte[] data, int partitionHash)
DefaultData(int type, byte[] data, int partitionHash, byte[] header)

Method Summary

Methods

Modifier and Type	Method and Description
int	dataSize() Returns size of binary data
boolean	equals(Object o)
byte[]	getData() Returns byte array representation of internal binary format.
byte[]	getHeader() Returns byte array representation of header.
int	getHeapCost() Returns approximate heap cost of this Data object in bytes.
int	getPartitionHash() Returns partition hash calculated for serialized object.
int	getType() Returns serialization type of binary form.
long	hash64() Returns 64-bit hash code for this Data object.
int	hashCode()
boolean	hasPartitionHash() Returns true if Data has partition hash, false otherwise.
int	headerSize() Returns size of header.
boolean	isPortable() Returns true if this Data is created from a Portable object, false otherwise.
int	readIntHeader(int offset, ByteOrder order) Reads an integer header from given offset using given ByteOrder.
void	setData(byte[] array)
void	setHeader(byte[] header)
void	setPartitionHash(int partitionHash)
void	setType(int type)
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DefaultData

public DefaultData()

DefaultData

public DefaultData(int type,
           byte[] data)

DefaultData

public DefaultData(int type,
           byte[] data,
           int partitionHash)

DefaultData

public DefaultData(int type,
           byte[] data,
           int partitionHash,
           byte[] header)

Method Detail

dataSize

public int dataSize()

Description copied from interface: Data

Returns size of binary data

Returns:

data size

getPartitionHash

public int getPartitionHash()

Description copied from interface: Data

Returns partition hash calculated for serialized object. Partition hash is used to determine partition of a Data and is calculated using PartitioningStrategy during serialization.

If partition hash is not set then standard hashCode() is used.

Returns:

partition hash

See Also:

PartitionAware, PartitioningStrategy, SerializationService.toData(Object, com.hazelcast.core.PartitioningStrategy)

hasPartitionHash

public boolean hasPartitionHash()

Description copied from interface: Data

Returns true if Data has partition hash, false otherwise.

Returns:

true if Data has partition hash, false otherwise.

headerSize

public int headerSize()

Description copied from interface: Data

Returns size of header.

Returns:

size of header

getHeader

public byte[] getHeader()

Description copied from interface: Data

Returns byte array representation of header. Header is used to store Portable metadata during serialization and consists of factoryId, classId and version for each Portable field that source object contains.

Returns:

header

getData

public byte[] getData()

Description copied from interface: Data

Returns byte array representation of internal binary format.

Returns:

binary data

setData

public void setData(byte[] array)

setPartitionHash

public void setPartitionHash(int partitionHash)

getType

public int getType()

Description copied from interface: Data

Returns serialization type of binary form. It's defined by Serializer.getTypeId()

Returns:

serializer type id

setType

public void setType(int type)

setHeader

public void setHeader(byte[] header)

readIntHeader

public int readIntHeader(int offset,
                ByteOrder order)

Description copied from interface: Data

Reads an integer header from given offset using given ByteOrder.

Parameters:

offset - offset of integer header

order - byte order

Returns:

integer header

getHeapCost

public int getHeapCost()

Description copied from interface: Data

Returns approximate heap cost of this Data object in bytes.

Returns:

approximate heap cost

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

hash64

public long hash64()

Description copied from interface: Data

Returns 64-bit hash code for this Data object.

Returns:

64-bit hash code

isPortable

public boolean isPortable()

Description copied from interface: Data

Returns true if this Data is created from a Portable object, false otherwise.

Returns:

true if source object is Portable, false otherwise.

toString

public String toString()

Overrides:

toString in class Object