Package org.apache.heron.spi.packing

Class Resource

java.lang.Object

org.apache.heron.spi.packing.Resource

public class Resource
extends Object

Definition of Resources. Used to form packing structure output.

Field Summary

Fields

Modifier and Type	Field	Description
static Resource	EMPTY_RESOURCE

Constructor Summary

Constructors

Constructor	Description
Resource(double cpu, org.apache.heron.common.basics.ByteAmount ram, org.apache.heron.common.basics.ByteAmount disk)

Method Summary

Modifier and Type	Method	Description
Resource	cloneWithCpu(double newCpu)
Resource	cloneWithDisk(org.apache.heron.common.basics.ByteAmount newDisk)
Resource	cloneWithRam(org.apache.heron.common.basics.ByteAmount newRam)
double	divideBy(Resource other)	Divides a resource by another resource by dividing the CPU, memory and disk values of the resources.
boolean	equals(Object obj)
double	getCpu()
org.apache.heron.common.basics.ByteAmount	getDisk()
org.apache.heron.common.basics.ByteAmount	getRam()
int	hashCode()
Resource	plus(Resource other)	Adds a given resource from the current resource.
Resource	subtractAbsolute(Resource other)	Subtracts a given resource from the current resource.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_RESOURCE

public static final Resource EMPTY_RESOURCE

Constructor Detail

Resource

public Resource(double cpu,
                org.apache.heron.common.basics.ByteAmount ram,
                org.apache.heron.common.basics.ByteAmount disk)

Method Detail

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

getCpu

public double getCpu()

getRam

public org.apache.heron.common.basics.ByteAmount getRam()

getDisk

public org.apache.heron.common.basics.ByteAmount getDisk()

cloneWithRam

public Resource cloneWithRam(org.apache.heron.common.basics.ByteAmount newRam)

cloneWithCpu

public Resource cloneWithCpu(double newCpu)

cloneWithDisk

public Resource cloneWithDisk(org.apache.heron.common.basics.ByteAmount newDisk)

subtractAbsolute

public Resource subtractAbsolute(Resource other)

Subtracts a given resource from the current resource. The results is never negative.

plus

public Resource plus(Resource other)

Adds a given resource from the current resource.

divideBy

public double divideBy(Resource other)
                throws RuntimeException

Divides a resource by another resource by dividing the CPU, memory and disk values of the resources. It returns the maximum of the three results.

Throws:

RuntimeException

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object