Invoke this dialog from the special Inspector field "pattern" for classes, links, attributes, and operations. Using this dialog, you can change the way your class members are implemented, convert a link to another kind, or apply another source code pattern for an attribute or operation. Note that you can even generate a set of members for a class, if that set is defined in the corresponding pattern.

• Pattern name  - the list name of available patterns for code generating. These patterns are defined in configuration properties for the language of the current project. When you select a pattern in the list, the intermediate source-code generating is performed by taking the properties of the inspected member and generating
• Name - displays the name of the inspected member. If enabled, you can modify the name of an attribute or operation.
• Type - displays the type of the inspected member (or return type if an operation is inspected). If a link pattern is selected, the type is usually disabled since it is strictly defined by pattern.
• Parameters - displays the parameters of the inspected operation. Disabled for attributes.
• Destination - displays the destination (supplier) class of the inspected link. Disabled for operation and attribute patterns, those do not form links.
• Preview - This box displays the resulting source code for the selected pattern as it would be inserted after you click Apply. The code merges the existing properties and tags with the new ones defined by pattern.
• Apply - Clicking it, you choose the pattern selected in Pattern name and source code displayed in Preview is actually inserted into source file. Note that this results in Update diagrams without clicking Apply in the Inspector.

 

Figure 1. Choose Pattern dialog.

 
Together performs checking the selected pattern on-the-fly. In case of invalid resulting source, the Apply button is disabled. However, wrongly written pattern can cause side effects after code-generating, e.g. the inspected element may disappear from the diagram. If this is the case, first, check the Message window for the parser's errors and, if any, correct source code directly in the Text pane. Then, check the filter setting in the Display tab of the diagram Inspector, the member or link can satisfy one of filtering criteria and be hidden. And for the last, check the pattern definition in the configuration properties file. Particularly, pay attention to that parser's blueprints and codegen's blueprints must conform. Thus if you have a generating blueprint for link, the source code of such link must be recognized as link by at least one of parser's blueprint.

You can control the set of patterns displayed in the Pattern name list using the Code Editor page of the Options dialog. The default configuration has prepared sets of collections (containers) supporting different libraries. These blueprints have special names.
Other blueprints found in the configuration file(s) are always listed in the dialog. You can customize them by editing the global ./lib/config.properties file or creating a local one in the project.