| ErrorListener | JAXP/Transform analogue of SAX ErrorHandler, using |
| OutputKeys | Provides names for XSLT output attributes. |
| Result | Result |
| Source | Identifies the URI for either a transformation (XSLT stylesheet) or an input to a transformation (XML document to be transformed). |
| SourceLocator | JAXP/transform analogue of SAX Locator. |
| Templates | Encapsulates a pre-parsed (reusable) XSLT transform. |
| Transformer | Apply a transformation from a source, populating a result. |
| TransformerConfigurationException | TransformerConfigurationException |
| TransformerException | Encapsulates a problem exposed during a transformation. |
| TransformerFactory | Abstract class extended by implementations. |
| TransformerFactoryConfigurationError | Reports a |
| URIResolver | URIResolver |