java.lang.Object
- org.openjdk.jmc.flightrecorder.stacktrace.graph.StacktraceGraphModel

```
public final class StacktraceGraphModel
extends Object
```
A model for holding multiple stack traces and their relations to each other as a directed graph.
The model is state-less. The model is created and built once, and read only.
Instances of this class are thread safe.
The typical way of using this class is to first decide on the FrameSeparator and then create the model.
Opening a Java flight Recording and setting up the stack trace model can be done like this:
```
 IItemCollection items = JfrLoaderToolkit.loadEvents(file);
 IItemCollection filteredItems = items.apply(JdkFilters.EXECUTION_SAMPLE);
 FrameSeparator frameSeparator = new FrameSeparator(FrameCategorization.METHOD, false);
 StacktraceGraphModel model = new StacktraceGraphModel(frameSeparator, filteredItems);
 
```

Constructor Summary

Constructors
Constructor	Description
`StacktraceGraphModel(FrameSeparator frameSeparator, IItemCollection items, IAttribute<IQuantity> attribute)`	Constructor.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`findEdgeMaxCount()`	Searches the edges for the max count.
`double`	`findEdgeMaxValue()`	Searches the edges for the max value.
`int`	`findEdgeMinCount()`	Searches the edges for the min count.
`double`	`findEdgeMinValue()`	Searches the edges for the min value.
`int`	`findNodeMaxCount()`	Searches the nodes for the max count.
`double`	`findNodeMaxWeight()`	Searches the nodes for the max weight.
`int`	`findNodeMinCount()`	Searches the nodes for the min count.
`double`	`findNodeMinWeight()`	Searches the nodes for the min weight.
`IAttribute<IQuantity>`	`getAttribute()`
`Collection<Edge>`	`getEdges()`
`IItemCollection`	`getItems()`
`Collection<Node>`	`getNodes()`
`int`	`getTotalEdgeCount()`
`int`	`getTotalTraceCount()`
`boolean`	`isEmpty()`
`static void`	`main(String[] args)`
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - StacktraceGraphModel
```
public StacktraceGraphModel(FrameSeparator frameSeparator,
                            IItemCollection items,
                            IAttribute<IQuantity> attribute)
```
    Constructor.
    
    Parameters:
    
    frameSeparator - how to aggregate frames.
    
    items - the items to graph.
    
    attribute - the (optional) attribute to use for calculating the values.
- Method Detail
  - getEdges
```
public Collection<Edge> getEdges()
```
  - getNodes
```
public Collection<Node> getNodes()
```
  - getAttribute
```
public IAttribute<IQuantity> getAttribute()
```
  - isEmpty
```
public boolean isEmpty()
```
  - getItems
```
public IItemCollection getItems()
```
  - getTotalEdgeCount
```
public int getTotalEdgeCount()
```
    Returns:
    
    the total edge count, i.e. the total sum of counts for all edges.
  - getTotalTraceCount
```
public int getTotalTraceCount()
```
    Returns:
    
    the total amount of stack traces use to build this model.
  - findNodeMinCount
```
public int findNodeMinCount()
```
    Searches the nodes for the min count.
    
    Returns:
    
    the min count.
  - findNodeMaxCount
```
public int findNodeMaxCount()
```
    Searches the nodes for the max count.
    
    Returns:
    
    the max count.
  - findNodeMinWeight
```
public double findNodeMinWeight()
```
    Searches the nodes for the min weight.
    
    Returns:
    
    the min weight.
  - findNodeMaxWeight
```
public double findNodeMaxWeight()
```
    Searches the nodes for the max weight.
    
    Returns:
    
    the max weight.
  - findEdgeMinValue
```
public double findEdgeMinValue()
```
    Searches the edges for the min value.
    
    Returns:
    
    the min value.
  - findEdgeMaxValue
```
public double findEdgeMaxValue()
```
    Searches the edges for the max value.
    
    Returns:
    
    the max value.
  - findEdgeMinCount
```
public int findEdgeMinCount()
```
    Searches the edges for the min count.
    
    Returns:
    
    the min count.
  - findEdgeMaxCount
```
public int findEdgeMaxCount()
```
    Searches the edges for the max count.
    
    Returns:
    
    the max count.
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - main
```
public static void main(String[] args)
                 throws IOException,
                        CouldNotLoadRecordingException
```
    Throws:
    
    IOException
    
    CouldNotLoadRecordingException

Class StacktraceGraphModel

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

StacktraceGraphModel

Method Detail

getEdges

getNodes

getAttribute

isEmpty

getItems

getTotalEdgeCount

getTotalTraceCount

findNodeMinCount

findNodeMaxCount

findNodeMinWeight

findNodeMaxWeight

findEdgeMinValue

findEdgeMaxValue

findEdgeMinCount

findEdgeMaxCount

toString

main