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Introduction

The Data Call Graph scope offers a view based on the individual Data Call Graphs that exist in the current Application. A "call graph" is a view showing "Entry Points to End Points/Data Entities".

  • Data Call Graphs option will be deactivated if there are no call graphs.
  • For any call graph, you cannot hide a grouped node.

Accessing the Data Call Graph scope

To access the Data Call Graph scope, click the Data call graph entry in the Investigation panel:

Choose a specific Data call graph to display. Data call graphs are listed in alphabetical order in the Search for Data call graphs dropdown - by default the first in the list is displayed in the view. The number in square brackets indicates the number of Data call graphs that are available. If there are none, the option will be deactivated.

Perspective selection

By default, the perspective (how the data is displayed) will be set to CAST Taxonomy (the default layout configured by CAST Imaging and the only layout available) and Level 4 - you can find out more about the Perspective options in User Guide - GUI.

Navigation flow

Levels

Levels 4, 5 and Objects are available for selection when CAST Taxonomy aggregation is selected in the Investigate panel - these levels provide ever greater details about the items within the selected layer:

Actions

ActionLocationResult/Behavior
Double click on nodeLevel 4N/A
Level 5

Drill down to Vignette mode i.e.:  Objects level + drill mode Children + Caller/Callee + Group by communities (depending on the object selected). See also User Guide - GUI for more information on Drill and Communities modes.

Click to expand

Vignette modeExpand and investigate the selected object.
ObjectsView source code of the object. See User Guide - Viewing source code.
Right click on node

Level 4

  • Properties > Displays information about the node in the right hand slide in panel:

Level 5

Objects and Vignette mode

  • Add callers/callees > Retrieves all caller/called objects. Links are added to the selected object and to any other objects present where a link exists. The number in square brackets in the contextual menu indicates the number of items available.
  • Add linked objects > See User Guide - Using the Add linked objects feature for more information.
  • Add 2 levels of Callers/Callees > Same principal as the Add Callers/Callees options, but instead displays two levels of objects.
  • Associate to custom aggregation > See User Guide - Creating a custom aggregation mode.
  • Show source code > See See User Guide - Viewing source code.
  • Hide node > Use this to hide selected nodes. To unhide, either use the "Undo" option or refresh the page. It is not possible to hide a concept node or a group node, in which case the option will not be available.
  • Properties > Displays information about the object in the right hand slide in panel:

Single click on edgeLevels 4 and 5N/A
Objects and Vignette mode
Displays all the methods that are linked between classes and provides additional actions such as:
  • view source code
  • method information
  • add caller/callees

See User Guide - Using the Method view for more information.

Double click on edgeLevels 4 and 5, Objects and Vignette

N/A

Call graph start and end points (input/output) - Critical Path

Call graph start (input) and end (output) points are highlighted in the view at Objects level, if they exist. This is known as the Critical Path:

Legend

The Critical Path feature is controlled by the icon in the left panel - it is enabled by default:

Note that if no critical path exists, a message is displayed in the bottom right corner:

Huge Data Call Graph, content is filtered

You may see the following message when looking through the list of available transactions:

This indicates that during the data export/import process, the tool identified that the transaction contained more than 10,000 objects, and therefore stopped the processing action for this specific data call graph. In other words, the detail of this data call graph has not been exported and is therefore unavailable.

It is possible to modify the threshold (default 10,000 objects) at which the CAST Imaging exporter tool will consider that a data call graph is "huge" - see Configuring huge transaction or data call graph threshold.

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