Documentation Contents

# Java API for XML Processing Release Notes

Specification Version: 1.4
Reference Implementation Version: 1.4.0

This document contains installation instructions and other notes that may help you use this software library more effectively.

## Contents

- Feature Changes
- gMonth
- JAXP Specification Changes since 1.3

## Feature Changes

An important technical change in JAXP 1.4 is the addition of the `javax.xml.stream.*` packages from StAX, the Streaming API for XML (JSR 173). With this addition, JAXP 1.4 now supports validation and transformation of documents with the streaming API. Since JAXP 1.4 is integrated in Java SE, StAX support is transparent on any system running the latest Java platform.

## gMonth

JAXP 1.4 changed its XML Schema validation logic for gMonth to reflect the changes made in the XML Schema 1.0 Specification Errata: E2-12 Error. Specifically, it will now reject gMonths with a lexical representation of "--MM--" as invalid.

## JAXP Specification Changes since 1.3

The following sections summarize the significant changes introduced in JAXP 1.4. For additional details, please see the appropriate JavaDoc.

### 1. Package javax.xml.datatype

### 1.1. Class DatatypeFactory

- Changed `DATATYPEFACTORY_IMPLEMENTATION_CLASS` to `com.sun.org.apache.xerces.internal.jaxp.datatype.DatatypeFactoryImpl`.

- Added `newInstance(String, ClassLoader)` method.

### 1.2. Class Duration

- Return `false` if the argument to `equals()` is `null` instead of throwing `NullPointerException`.

### 1.3. Class XMLGregorianCalendar

- Return `false` if the argument to `equals()` is `null` instead of throwing `NullPointerException`.

### 2. Package javax.xml.parsers

### 2.1. Class DocumentBuilderFactory

- Added `newInstance(String, ClassLoader)` method.

### 2.2. Class SAXParserFactory

- Added `newInstance(String, ClassLoader)` method.

### 3. Package javax.xml.stream

Added the javax.xml.stream package to support StAX. The package consists of the following interfaces:

- `EventFilter`

- `Location`

- `StreamFilter`

- `XMLEventReader`

- `XMLEventWriter`

- `XMLReporter`

- `XMLResolver`

- `XMLStreamConstants`

- `XMLStreamReader`

- `XMLStreamWriter`

Classes:

- `XMLEventFactory`

- `XMLInputFactory`

- `XMLOutputFactory`

Exceptions:

- `XMLStreamException`

And errors:

- FactoryConfigurationError

### 4. Package javax.xml.stream.events

Added the javax.xml.stream.events package to support StAX. The package consists of the following interfaces:

- `Attribute`

- `Characters`

- `Comment`

- `DTD`

- `EndDocument`

- `EndElement`

- `EntityDeclaration`

- `EntityReference`

- `Namespace`

- `NotationDeclaration`

- `ProcessingInstruction`

- `StartDocument`

- `StartElement`

- `XMLEvent`

### 4.1. Package javax.xml.stream.util

Added the javax.xml.stream.util package to support StAX. The package consists of the following interfaces:

- `XMLEventAllocator`

- `XMLEventConsumer`

And classes:

- `EventReaderDelegate`

- `StreamReaderDelegate`

### 5. Package javax.xml.transform

### 5.1. Class ErrorListener

- Clarified the semantics of `fatalError()`.

### 5.2. Class Transformer

- Clarified the semantics of `getOutputProperty()` with respect to properties that have not been set explicitly with either `setOutputProperty()` or `xsl:output` in the stylesheet.

### 5.3. Class TransformerFactory

- Added `newInstance(String, ClassLoader)` method.

### 5.4. Package javax.xml.transform.stax

Added the javax.xml.transform.stax package to support StAX. The package consists of the following interfaces:

- `TemplatesHandler`

- `TransformerHandler`

And classes:

- `StAXResult`

- `StAXSource`

### 6. Package javax.xml.validation

### 6.1. Class Schema

- Clarified that the features set on the `SchemaFactory` should be passed to the `Validator` created with `newValidator()`.

- Clarified that the features set on the `SchemaFactory` should be passed to the `ValidatorHandler` created with `newValidatorHandler()`.

### 6.2. Class SchemaFactory

- Added `newInstance(String, ClassLoader)` method.

- Clarified that the features set on the `SchemaFactory` should be passed to the `Schema`s created with `newSchema()`. Included a note to implementors and developers about the subtleties associated with `newSchema()` in this context.

- Clarified that the inputs to `newSchema(Source[])` are expected to be XML documents or elements.

- Updated documentation of `setFeature()` to clarify that the features set on the `SchemaFactory` should be passed to the `Schema`s created with this factory and by extension to the `Validator` and `ValidatorHandler`s created from that `Schema`.

### 6.3. Class SchemaFactoryLoader

The `SchemaFactoryLoader` class was created during the JAXP 1.3 development process. Shortly before JAXP 1.3 was finished, the factory mechanisms associated with validation were changed, and this class was removed. Unfortunately, the file was left in a repository and it slipped into the Java Platform, Standard Edition 5.0 API Specification.

Since the class can neither be added to JAXP 1.3 nor removed from the Java 5.0 API Specification due to backwards compatibility issues, it is being added to JAXP 1.4. The class is harmless and should not be used. It is being added simply to avoid the confusion that arises when developers notice that it's defined in the platform but not in JAXP.

Do not use this class.

### 6.4. Class TypeInfoProvider

- Extended the semantics of `getElementTypeInfo()`, allowing it to be called from either the startElement event or the endElement event. This allows the API to support W3C XML Schema union types more usefully.

  When W3C XML Schema validation is being performed, in the case where an element has a union type, the `TypeInfo` returned by a call to `getElementTypeInfo()` from the startElement event will be the union type. The `TypeInfo` returned by a call from the endElement event will be the actual member type used to validate the element.

### 6.5. Class Validator

- The `Validator` may now accept `Source`s other than `DOMSource` and `SAXSource`; for example, `StAXSource`.

- Clarified that the inputs to `validate()` are expected to be XML documents or elements.

### 7. Package javax.xml.xpath

### 7.1. Class XPath

- Clarified that it is the `XPathVariableResolver` in effect at compile time that is used to resolve any variables that appear in the expression.

### 7.2. Class XPathFactory

- Added `newInstance(String, ClassLoader)` method.

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