com.facebook.battery.metrics.composite

Class CompositeMetrics

java.lang.Object

com.facebook.battery.metrics.api.SystemMetrics<CompositeMetrics>

com.facebook.battery.metrics.composite.CompositeMetrics

All Implemented Interfaces:

java.io.Serializable

public class CompositeMetrics
extends SystemMetrics<CompositeMetrics>

Maintains a set of metrics internally that can be simply iterated over and used by being wrapped with this class.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CompositeMetrics()

Method Summary

Modifier and Type	Method and Description
CompositeMetrics	diff(CompositeMetrics b, CompositeMetrics result) Subtract the object passed in from the current object.
boolean	equals(java.lang.Object o)
<T extends SystemMetrics<T>> T	getMetric(java.lang.Class<T> metricsClass)
java.util.Map<java.lang.Class<? extends SystemMetrics>,SystemMetrics>	getMetrics()
int	hashCode()
<T extends SystemMetrics<T>> CompositeMetrics	putMetric(java.lang.Class<T> metricsClass, T metric)
CompositeMetrics	set(CompositeMetrics b) Sets all fields in this to values from the SystemMetrics object passed in: a _deep_ copy that shouldn't share any values with other metrics objects.
CompositeMetrics	sum(CompositeMetrics b, CompositeMetrics result) Add values from the SystemMetrics object passed in and sets them on the output object, if available.
java.lang.String	toString()

Methods inherited from class com.facebook.battery.metrics.api.SystemMetrics

diff, sum

Methods inherited from class java.lang.Object

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

Constructor Detail

CompositeMetrics

public CompositeMetrics()

Method Detail

diff

public CompositeMetrics diff(CompositeMetrics b,
                             CompositeMetrics result)

Description copied from class: SystemMetrics

Subtract the object passed in from the current object. Does not modify the original object. For convenience, this function accepts null values and will allocate an output object if none is passed in.

Specified by:

diff in class SystemMetrics<CompositeMetrics>

Returns:

output set to (this - b)

sum

public CompositeMetrics sum(CompositeMetrics b,
                            CompositeMetrics result)

Description copied from class: SystemMetrics

Add values from the SystemMetrics object passed in and sets them on the output object, if available. Does not modify the original object. For convenience, this function accepts null values and will allocate an output object if none is passed in.

Specified by:

sum in class SystemMetrics<CompositeMetrics>

Returns:

output set to (this + b)

set

public CompositeMetrics set(CompositeMetrics b)

Description copied from class: SystemMetrics

Sets all fields in this to values from the SystemMetrics object passed in: a _deep_ copy that shouldn't share any values with other metrics objects.

Specified by:

set in class SystemMetrics<CompositeMetrics>

Returns:

this

putMetric

public <T extends SystemMetrics<T>> CompositeMetrics putMetric(java.lang.Class<T> metricsClass,
                                                               T metric)

getMetric

public <T extends SystemMetrics<T>> T getMetric(java.lang.Class<T> metricsClass)

getMetrics

public java.util.Map<java.lang.Class<? extends SystemMetrics>,SystemMetrics> getMetrics()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object