org.apache.flink.graph.asm.dataset

Class ChecksumHashCode.Checksum

java.lang.Object

org.apache.flink.graph.asm.dataset.ChecksumHashCode.Checksum

All Implemented Interfaces:

Serializable, Cloneable, Accumulator<ChecksumHashCode.Checksum,ChecksumHashCode.Checksum>, SimpleAccumulator<ChecksumHashCode.Checksum>

Enclosing class:

ChecksumHashCode<T>

public static class ChecksumHashCode.Checksum
extends Object
implements SimpleAccumulator<ChecksumHashCode.Checksum>

Wraps checksum and count.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Checksum(long count, long checksum) Instantiate an immutable result.

Method Summary

Modifier and Type	Method and Description
void	add(ChecksumHashCode.Checksum value)
Accumulator<ChecksumHashCode.Checksum,ChecksumHashCode.Checksum>	clone() Duplicates the accumulator.
boolean	equals(Object obj)
long	getChecksum() Get the checksum over the hash() of elements.
long	getCount() Get the number of elements.
ChecksumHashCode.Checksum	getLocalValue()
int	hashCode()
void	merge(Accumulator<ChecksumHashCode.Checksum,ChecksumHashCode.Checksum> other) Used by system internally to merge the collected parts of an accumulator at the end of the job.
void	resetLocal() Reset the local value.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Checksum

public Checksum(long count,
                long checksum)

Instantiate an immutable result.

Parameters:

count - count

checksum - checksum

Method Detail

getCount

public long getCount()

Get the number of elements.

Returns:

number of elements

getChecksum

public long getChecksum()

Get the checksum over the hash() of elements.

Returns:

checksum

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

add

public void add(ChecksumHashCode.Checksum value)

Specified by:

add in interface Accumulator<ChecksumHashCode.Checksum,ChecksumHashCode.Checksum>

Parameters:

value - The value to add to the accumulator object

getLocalValue

public ChecksumHashCode.Checksum getLocalValue()

Specified by:

getLocalValue in interface Accumulator<ChecksumHashCode.Checksum,ChecksumHashCode.Checksum>

Returns:

local The local value from the current UDF context

resetLocal

public void resetLocal()

Description copied from interface: Accumulator

Reset the local value. This only affects the current UDF context.

Specified by:

resetLocal in interface Accumulator<ChecksumHashCode.Checksum,ChecksumHashCode.Checksum>

merge

public void merge(Accumulator<ChecksumHashCode.Checksum,ChecksumHashCode.Checksum> other)

Description copied from interface: Accumulator

Used by system internally to merge the collected parts of an accumulator at the end of the job.

Specified by:

merge in interface Accumulator<ChecksumHashCode.Checksum,ChecksumHashCode.Checksum>

Parameters:

other - Reference to accumulator to merge in.

clone

public Accumulator<ChecksumHashCode.Checksum,ChecksumHashCode.Checksum> clone()

Description copied from interface: Accumulator

Duplicates the accumulator. All subclasses need to properly implement cloning and cannot throw a CloneNotSupportedException

Specified by:

clone in interface Accumulator<ChecksumHashCode.Checksum,ChecksumHashCode.Checksum>

Overrides:

clone in class Object

Returns:

The duplicated accumulator.