Introduction

The Transaction scope offers a view based on the individual Transactions that exist in the current Application:

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For any Transaction, you cannot hide a grouped node.

Accessing the Transaction scope

To access the Transaction scope, click the Transaction entry in the Investigation panel:

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

Filtering the list of available transactions

Sometimes the list of transactions 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:

This opens a set of filtering options - you can use any of these options in isolation, a combination, or all of them. Click Reset to clear any changes you have made, or Done to apply the filtering settings.

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Input

Filter the available items based on the item's entry point. Choose an entry point from the list - only items that include the chosen entry point will be made available.

Link types

Filter the available items based on the link type used:

Output

Filter the available items with or without an end point. By default, the filtering is applied to WITH items: this means that only transactions WITH an end-point are displayed by default.

You can alternatively (or in addition) choose an end point from the drop down list - only items that include the chosen end point will be made available.

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 - Investigate panel.

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

Action	Location	Result/Behavior
Double click on node	Level 4	In version ≥ 2.12, double clicking a node will transition to level 5.
	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 - Investigate panel for more information on Drill and Communities modes. Click to expand
	Vignette mode	Expand and investigate the selected object to show its sub-objects. Note that when all sub-objects of the selected object are displayed, a message is shown to explain this:
	Objects	View 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: If the object properties cannot be retrieved in a timely manner, a retry button will be displayed:
	Level 5	Children + X > Drill down into Vignette mode for further investigation. See also User Guide - GUI - Investigate panel for more information on Drill and Communities modes. Add edge > See User Guide - Working with custom links. Search > Invokes the standard search options for the selected object. See User Guide - Search for items. Properties > Displays information about the node in the right hand slide in panel (see User Guide - Properties panel): If the object properties cannot be retrieved in a timely manner, a retry button will be displayed:
	Vignette mode	Expand All > Expand and investigate the selected node (same as double click) 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 node in the right hand slide in panel (see User Guide - Properties panel): If the object properties cannot be retrieved in a timely manner, a retry button will be displayed:
	Objects	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. Path finder > See User Guide - Using the Path Finder feature. Call hierarchy > See User Guide - Using the Call Hierarchy feature. Focus > See User Guide - Using the Focus option. 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. Explain > See User Guide - OpenAI Integration. Highlight Callees/Highlight Callers/Highlight Path > See User Guide - Using the Highlight options Hide node/object > 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. Remove object > Use this option to remove the object from the current view. When you reload the view the object will be re-displayed. Properties > Displays information about the object in the right hand slide in panel (see User Guide - Properties panel): If the object properties cannot be retrieved in a timely manner, a retry button will be displayed:
Single click on edge	Levels 4 and 5	N/A
Single click on edge	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 edge	Levels 4 / 5 / Vignette / Objects	N/A

Transaction start and end points (input/output)

Transaction start (input) and end (output) points are highlighted in the view at Objects level using red circles around the items if they exist:

Legend

Click the Input or Output items in the right hand legend to highlight the items:

Shortest path

A related feature available at Object level is known as the Shortest Path feature and is controlled by the option in the left panel - it is disabled by default:

This option highlights the shortest path between the entry point and end point nodes, where multiple start end end nodes are present in the view:

Shortest Path disabled	Shortest Path enabled

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

Full / reduced call graph

In CAST Imaging ≥ 2.9.1, by default, the transaction call graph will be displayed in "reduced mode" - in other words this is a simplified transaction call graph: specific nodes and links that are less important will be removed from the view to improve performance. The nodes/links that are displayed are determined automatically during the Application export process.

If you need to view the full call graph, you will need to enable the option in the User Guide - GUI - Investigate panel by clicking the Full Call Graph button - when enabled the button will be highlighted in blue as shown below (a full call graph may take some time to load if the application is very large):

If the full call graph contains more objects/nodes than the number defined in the Notify objects count setting configured in the display preferences panel, then a notification will be displayed to prompt you to choose whether:

Release	Popup	Description
≥ 2.10.x		to cancel the display or to download a .CSV file containing details about the list of objects in the resulting view
≤ 2.9.x		to cancel the display or to proceed with the display knowing that the view may take some time to load

Note that in CAST Imaging ≥ 2.7.0 - 2.9.0 the option is called Reduced Call Graph and the behaviour is reversed, in other words, by default a full call graph is always displayed:

Huge Transaction, 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 transaction. In other words, the detail of this transaction 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 transaction is "huge" - see Configuring huge transaction or data call graph threshold.

Drill down behaviour at Objects level

When drilling down into a specific object at Objects level to view the object's sub-objects, and when all sub-objects of the selected object are displayed, a message is shown to explain this:

Page tree

User Guide - Transaction scope