edu.snu.coral.runtime.executor.data.metadata

Class PartitionMetadata<K extends Serializable>

java.lang.Object

edu.snu.coral.runtime.executor.data.metadata.PartitionMetadata<K>

Type Parameters:

K - the key type of its partitions.

public final class PartitionMetadata<K extends Serializable>
extends Object

This class represents a metadata for a partition.

Constructor Summary

Constructors

Constructor and Description
PartitionMetadata(K key, int partitionSize, long offset, long elementsTotal) Constructor.

Method Summary

Modifier and Type	Method and Description
long	getElementsTotal()
K	getKey()
long	getOffset()
int	getPartitionSize()

Methods inherited from class java.lang.Object

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

Constructor Detail

PartitionMetadata

public PartitionMetadata(K key,
                         int partitionSize,
                         long offset,
                         long elementsTotal)

Constructor.

Parameters:

key - the key of this partition.

partitionSize - the size of this partition.

offset - the offset of this partition.

elementsTotal - the total number of elements in this partition.

Method Detail

getKey

public K getKey()

Returns:

the key of this partition.

getPartitionSize

public int getPartitionSize()

Returns:

the size of this partition.

getOffset

public long getOffset()

Returns:

the offset of this partition.

getElementsTotal

public long getElementsTotal()

Returns:

the total number of elements in this partition.