org.openjdk.jmc.flightrecorder.stacktrace

Class FrameSeparator

java.lang.Object

org.openjdk.jmc.flightrecorder.stacktrace.FrameSeparator

public class FrameSeparator
extends Object

Helper class used to compare stacktrace frames when grouping them into different branches in the stacktrace model.

There are two dimensions to consider when comparing frames. The first is the level of detail in a frame, where package is the most general and byte code index is the most specific. The second is if different optimization levels (see IMCFrame.Type) should be treated as equal or not.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FrameSeparator.FrameCategorization

Constructor Summary

Constructors

Constructor and Description
FrameSeparator(FrameSeparator.FrameCategorization categorization, boolean distinguishFramesByOptimization)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
FrameSeparator.FrameCategorization	getCategorization()
int	hashCode()
boolean	isDistinguishFramesByOptimization()
boolean	isSeparate(IMCFrame frameA, IMCFrame frameB) Check if two frames are different according to this frame separator.

Methods inherited from class java.lang.Object

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

Constructor Detail

FrameSeparator

public FrameSeparator(FrameSeparator.FrameCategorization categorization,
                      boolean distinguishFramesByOptimization)

Parameters:

categorization - How much detail to look at when comparing frames.

distinguishFramesByOptimization - True to treat different compiled versions of the code as different.

Method Detail

getCategorization

public FrameSeparator.FrameCategorization getCategorization()

isDistinguishFramesByOptimization

public boolean isDistinguishFramesByOptimization()

isSeparate

public boolean isSeparate(IMCFrame frameA,
                          IMCFrame frameB)

Check if two frames are different according to this frame separator.

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object