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Oxygen XML Editor uses the rules defined in the detected schema to report errors and warnings during automatic and manual validations that help maintain the structural integrity of your XML documents. You can specify the schema to be used for validation directly in validation scenarios and there are several methods that can be used to do so.

Configure a Validation Scenario and Specify the Schema

To associate a schema to a validation scenario to be used whenever the scenario is invoked, follow these steps:
  1. Select the Configure Validation Scenario(s) from the Validation toolbar drop-down menu, or from the Document > Validate menu (or the Validate submenu when invoking the contextual menu on a file in the Project view).
  2. Press the New button to create a new validation scenario or the Edit button to modify an existing one.
  3. Add or configure validation units according to your needs and click the Specify Schema button.

    Step Result: The Specify Schema dialog box is displayed:

    Figure: Specify Schema Dialog Box

    The Specify Schema dialog box contains the following options:

    Use detected schema
    Uses the schema detected for the particular document.
    Use custom schema
    Allows you to specify the schema using the following options:
    • URL - Allows you to specify or select a URL for the schema. It also keeps a history of the last used schemas. The URL must point to the schema file that can be loaded from the local disk or from a remote server through HTTP(S), FTP(S) or a custom protocol. You can specify the URL by using the text field, the history drop-down, the Insert Editor Variables button, or the browsing tools in the Browse drop-down list.
    • Schema type - Select a possible schema type from this combo box that is populated based on the extension of the schema file that was entered in the URL field. The possible schema types are: XML Schema, DTD, Relax NG, Relax NG Compact, Schematron, or NVDL.
    • Embedded schematron rules - If you have selected XML Schema or Relax NG schemas with embedded Schematron rules and you want to use those embedded rules, select this option.
    • Public ID - Allows you to specify a public ID if you have selected a DTD.
    • Extensions- Opens a dialog box that allows you to specify Java extension JARs to be used during the validation.
    • Schematron phase - If you select a Schematron schema, this drop-down list allows you to select a Schematron phase that you want to use for validation. The listed phases are defined in the Schematron document.
  4. Select the schema to be associated with the validation unit and configure the rest of the options according to your preferences.
  5. Click OK on both dialog boxes.

Result: The schema is now associated with that validation scenario whenever it is invoked.

Use the Validate with Action to Specify a Schema for Validating the Current Document

To validate the current document using a specified schema, follow these steps:
  1. Select the Validation with action from the Validation drop-down menu on the toolbar (or Document > Validate menu).

    Step Result: The Validate with dialog box is displayed:

    Figure: Validate with Dialog Box

    This dialog box contains the following options:
    • URL - Allows you to specify or select a URL for the schema. It also keeps a history of the last used schemas. The URL must point to the schema file that can be loaded from the local disk or from a remote server through HTTP(S), FTP(S) or a custom protocol. You can specify the URL by using the text field, the history drop-down, the Insert Editor Variables button, or the browsing tools in the Browse drop-down list.
    • Schema type - Select a possible schema type from this combo box that is populated based on the extension of the schema file that was entered in the URL field. The possible schema types are: XML Schema, DTD, Relax NG, Relax NG Compact, Schematron, or NVDL.
    • Embedded schematron rules - If you have selected XML Schema or Relax NG schemas with embedded Schematron rules and you want to use those embedded rules, select this option.
    • Public ID - Allows you to specify a public ID if you have selected a DTD.
    • Extensions- Opens a dialog box that allows you to specify Java extension JARs to be used during the validation.
    • Schematron phase - If you select a Schematron schema, this drop-down list allows you to select a Schematron phase that you want to use for validation. The listed phases are defined in the Schematron document.
  2. Select the schema to be associated with the manual validation and configure the rest of the options according to your preferences.
  3. Click OK.

Result: The current document is validated using the schema you specified.

Tip: To quickly open the schema used for validating the current document, select the Open Associated Schema action from the toolbar (or Document > Schema menu).

Use the Validate with Schema Action to Specify a Schema for Validating all Selected Documents

To validate multiple documents using a specified schema, follow these steps:
  1. Select all the documents you want to validate in the Project view .
  2. Invoke the contextual menu (right-click) and select the Validate with Schema action from the Validate submenu.

    Step Result: The Validate with dialog box is displayed:

    Figure: Validate with Dialog Box

    This dialog box contains the following options:
    • URL - Allows you to specify or select a URL for the schema. It also keeps a history of the last used schemas. The URL must point to the schema file that can be loaded from the local disk or from a remote server through HTTP(S), FTP(S) or a custom protocol. You can specify the URL by using the text field, the history drop-down, the Insert Editor Variables button, or the browsing tools in the Browse drop-down list.
    • Schema type - Select a possible schema type from this combo box that is populated based on the extension of the schema file that was entered in the URL field. The possible schema types are: XML Schema, DTD, Relax NG, Relax NG Compact, Schematron, or NVDL.
    • Embedded schematron rules - If you have selected XML Schema or Relax NG schemas with embedded Schematron rules and you want to use those embedded rules, select this option.
    • Public ID - Allows you to specify a public ID if you have selected a DTD.
    • Extensions- Opens a dialog box that allows you to specify Java extension JARs to be used during the validation.
    • Schematron phase - If you select a Schematron schema, this drop-down list allows you to select a Schematron phase that you want to use for validation. The listed phases are defined in the Schematron document.
  3. Select the schema that you want to use to validate all selected documents and configure the rest of the options according to your preferences.
  4. Click OK.

Result: The selected documents are validated using the schema you specified.