Automatic Validation

By default, Oxygen XML Developer Eclipse plugin automatically checks for validation errors as you are editing a document. The Enable automatic validation option in the Document Checking preferences page controls whether or not all validation errors and warnings will automatically be highlighted in the editor panel.

The automatic validation starts parsing the document and marking the errors after a configurable delay from the last key typed. Errors are highlighted with underline markers in the main editor panel and small rectangles on the right side ruler of the editor panel. Hovering over a validation error presents a tooltip message with more details about the error.