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".
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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.
Sometimes the list of data call graphs is very large and it can therefore be difficult to locate the item you need. If this is the case, you can use the filter option to reduce the list:
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.
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:
|Double click on node||Level 4||N/A|
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 mode||Expand and investigate the selected object.|
|Objects||View source code of the object. See User Guide - Viewing source code.|
|Right click on node||Level 4|
|Objects and Vignette mode|
|Single click on edge||Levels 4 and 5||N/A|
|Objects and Vignette mode|
Displays all the methods that are linked between classes and provides additional actions such as:
See User Guide - Using the Method view for more information.
|Double click on edge||Levels 4 and 5, Objects and Vignette|
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:
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:
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.