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Creating a Dictionary

The dictionary specification provides so called "interface" of the graph and is always required, even, for example, when the graph is used with Launch Service.

In the source code, the entries of the dictionary are specified inside the <Dictionary> element.

To create a dictionary, right-click the Dictionary item in the Outline pane and choose Edit from the context menu. The Dictionary editor will open.

Dictionary Dialog with Defined Entries

Figure 39.1. Dictionary Dialog with Defined Entries


Click the Plus sign button on the left to create a new dictionary entry.

After that, specify its Name (Names are case-sensitive, must be unique within the dictionary and should be legal java identifiers.). You must also specify other properties of the entry:

  1. Name

    Specifies the name of the dictionary entry. Names are case-sensitive, must be unique within the dictionary and should be legal java identifiers.

  2. As Input

    Specifies whether the dictionary entry can be used as input or not. Its value can be true or false.

  3. As Output

    Specifies whether the dictionary entry can be used as output or not. Its value can be true or false.

  4. Type

    Specifies the type of the dictionary entry.

    Dictionary types are the following primitive CloudConnect data types:

    • boolean, byte, date, decimal, integer, long, number, and string.

    Any of these can also be accessed in CTL2. See Dictionary in CTL2 for detailed information.

    There are three other data types of dictionary entry (available in Java):

    • object - CloudConnect data type available with CloudConnect Engine.

    • readable.channel - the input will be read directly from the entry by the Reader according to the configuration of the Reader. Therefore, the entry must contain data in valid format.

    • writable.channel - the output will be written directly to this entry in the format given by the output Writer (e.g., text file, XLS file, etc.)

  5. contentType

    You may need to select contentType.

    This specifies the content type of the output entry. This content type will used, for example, when the graph is launched via Launch Service to send the results back to user.

Each entry can have some properties (name and value). To specify them, click corresponding button on the right and specify the following two properties:

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