com.hazelcast.internal.hidensity

Interface HiDensityRecordAccessor<R extends HiDensityRecord>

Type Parameters:

R - Type of the Hi-Density record to be accessed.

All Superinterfaces:

com.hazelcast.memory.MemoryBlockAccessor<R>

All Known Subinterfaces:

HiDensityRecordProcessor<R>

All Known Implementing Classes:

AbstractHiDensityRecordAccessor, CacheHiDensityRecordProcessor, DefaultHiDensityRecordProcessor, HDRecordAccessor, HiDensityNativeMemoryCacheRecordAccessor, NativeMemoryNearCacheRecordAccessor

public interface HiDensityRecordAccessor<R extends HiDensityRecord>
extends com.hazelcast.memory.MemoryBlockAccessor<R>

Record accessor implementation for:

• Creating a new HiDensityRecord
• Accessing the data and value of HiDensityRecord
• Disposing the data and value of HiDensityRecord

See Also:

MemoryBlockAccessor, NativeMemoryData, HiDensityRecord

Method Summary

Modifier and Type	Method and Description
long	disposeData(long address) Disposes (frees) the data at the specified address.
long	disposeData(NativeMemoryData data) Disposes (frees) the specified NativeMemoryData.
long	disposeValue(R record) Disposes (frees) the value of the specified HiDensityRecord.
long	getSize(long address, long expectedSize) Gets the size of given address.
long	getSize(com.hazelcast.memory.MemoryBlock memoryBlock) Gets the size of given memoryBlock.
R	newRecord() Creates an empty HiDensityRecord.
NativeMemoryData	readData(long valueAddress) Reads an off-heap based data from given address.
Object	readValue(R record) Reads the value of specified HiDensityRecord.

Methods inherited from interface com.hazelcast.memory.MemoryBlockAccessor

dispose, dispose, isEqual, isEqual, read

Method Detail

newRecord

R newRecord()

Creates an empty HiDensityRecord.

Returns:

the created HiDensityRecord

readData

NativeMemoryData readData(long valueAddress)

Reads an off-heap based data from given address.

Parameters:

valueAddress - the address of the data stored as off-heap

Returns:

the data stored as off-heap

disposeData

long disposeData(NativeMemoryData data)

Disposes (frees) the specified NativeMemoryData.

Parameters:

data - the NativeMemoryData whose value will be disposed

Returns:

size of disposed data

disposeData

long disposeData(long address)

Disposes (frees) the data at the specified address.

Parameters:

address - the address of the NativeMemoryData whose value will be disposed

Returns:

size of disposed data at given address

readValue

Object readValue(R record)

Reads the value of specified HiDensityRecord.

Parameters:

record - the HiDensityRecord whose value will be read

Returns:

the value of specified HiDensityRecord

disposeValue

long disposeValue(R record)

Disposes (frees) the value of the specified HiDensityRecord.

Parameters:

record - the HiDensityRecord whose value will be disposed

Returns:

size of disposed HiDensityRecord

getSize

long getSize(com.hazelcast.memory.MemoryBlock memoryBlock)

Gets the size of given memoryBlock.

Parameters:

memoryBlock - MemoryBlock whose size will be calculated

Returns:

the size of memory block

getSize

long getSize(long address,
             long expectedSize)

Gets the size of given address.

Parameters:

address - the address whose size will be calculated

expectedSize - the expected size of address

Returns:

the size of address