Class XMLConstants

java.lang.Object

javax.xml.XMLConstants

public final class XMLConstants
extends Object

Utility class to contain basic XML values as constants.

Since:

1.5

Version:

$Revision: 584477 $, $Date: 2007-10-14 04:44:03 +0200 (Sun, 14 Oct 2007) $

Author:

Jeff Suttor

See Also:

• Extensible Markup Language (XML) 1.1
• Extensible Markup Language (XML) 1.0 (Second Edition)
• XML 1.0 Second Edition Specification Errata
• Namespaces in XML 1.1
• Namespaces in XML
• Namespaces in XML Errata
• XML Schema Part 1: Structures

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DEFAULT_NS_PREFIX	Prefix to use to represent the default XML Namespace.
static final String	FEATURE_SECURE_PROCESSING	Feature for secure processing.
static final String	NULL_NS_URI	Namespace URI to use to represent that there is no Namespace.
static final String	RELAXNG_NS_URI	RELAX NG Namespace URI.
static final String	W3C_XML_SCHEMA_INSTANCE_NS_URI	W3C XML Schema Instance Namespace URI.
static final String	W3C_XML_SCHEMA_NS_URI	W3C XML Schema Namespace URI.
static final String	W3C_XPATH_DATATYPE_NS_URI	W3C XPath Datatype Namespace URI.
static final String	XML_DTD_NS_URI	XML Document Type Declaration Namespace URI as an arbitrary value.
static final String	XML_NS_PREFIX	The official XML Namespace prefix.
static final String	XML_NS_URI	The official XML Namespace name URI.
static final String	XMLNS_ATTRIBUTE	The official XML attribute used for specifying XML Namespace declarations.
static final String	XMLNS_ATTRIBUTE_NS_URI	The official XML attribute used for specifying XML Namespace declarations, XMLConstants.XMLNS_ATTRIBUTE, Namespace name URI.

Method Summary

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

NULL_NS_URI

public static final String NULL_NS_URI

Namespace URI to use to represent that there is no Namespace.

Defined by the Namespace specification to be "".

See Also:

• Namespaces in XML, 5.2 Namespace Defaulting
• Constant Field Values

DEFAULT_NS_PREFIX

public static final String DEFAULT_NS_PREFIX

Prefix to use to represent the default XML Namespace.

Defined by the XML specification to be "".

See Also:

• Namespaces in XML, 3. Qualified Names
• Constant Field Values

XML_NS_URI

public static final String XML_NS_URI

The official XML Namespace name URI.

Defined by the XML specification to be "http://www.w3.org/XML/1998/namespace".

See Also:

• Namespaces in XML, 3. Qualified Names
• Constant Field Values

XML_NS_PREFIX

public static final String XML_NS_PREFIX

The official XML Namespace prefix.

Defined by the XML specification to be "xml".

See Also:

• Namespaces in XML, 3. Qualified Namesinvalid input: '<'
• Constant Field Values

XMLNS_ATTRIBUTE_NS_URI

public static final String XMLNS_ATTRIBUTE_NS_URI

The official XML attribute used for specifying XML Namespace declarations, XMLConstants.XMLNS_ATTRIBUTE, Namespace name URI.

Defined by the XML specification to be "http://www.w3.org/2000/xmlns/".

See Also:

• Namespaces in XML, 3. Qualified Names
• Namespaces in XML Errata
• Constant Field Values

XMLNS_ATTRIBUTE

public static final String XMLNS_ATTRIBUTE

The official XML attribute used for specifying XML Namespace declarations.

It is NOT valid to use as a prefix. Defined by the XML specification to be "xmlns".

See Also:

• Namespaces in XML, 3. Qualified Names
• Constant Field Values

W3C_XML_SCHEMA_NS_URI

public static final String W3C_XML_SCHEMA_NS_URI

W3C XML Schema Namespace URI.

Defined to be "http://www.w3.org/2001/XMLSchema".

See Also:

• XML Schema Part 1: Structures, 2.6 Schema-Related Markup in Documents Being Validated
• Constant Field Values

W3C_XML_SCHEMA_INSTANCE_NS_URI

public static final String W3C_XML_SCHEMA_INSTANCE_NS_URI

W3C XML Schema Instance Namespace URI.

Defined to be "http://www.w3.org/2001/XMLSchema-instance".

See Also:

• XML Schema Part 1: Structures, 2.6 Schema-Related Markup in Documents Being Validated
• Constant Field Values

W3C_XPATH_DATATYPE_NS_URI

public static final String W3C_XPATH_DATATYPE_NS_URI

W3C XPath Datatype Namespace URI.

Defined to be "http://www.w3.org/2003/11/xpath-datatypes".

See Also:

• XQuery 1.0 and XPath 2.0 Data Model
• Constant Field Values

XML_DTD_NS_URI

public static final String XML_DTD_NS_URI

XML Document Type Declaration Namespace URI as an arbitrary value.

Since not formally defined by any existing standard, arbitrarily define to be "http://www.w3.org/TR/REC-xml".

See Also:

• Constant Field Values

RELAXNG_NS_URI

public static final String RELAXNG_NS_URI

RELAX NG Namespace URI.

Defined to be "http://relaxng.org/ns/structure/1.0".

See Also:

• RELAX NG Specification
• Constant Field Values

FEATURE_SECURE_PROCESSING

public static final String FEATURE_SECURE_PROCESSING

Feature for secure processing.

• true instructs the implementation to process XML securely. This may set limits on XML constructs to avoid conditions such as denial of service attacks.
• false instructs the implementation to process XML according to the letter of the XML specifications ignoring security issues such as limits on XML constructs to avoid conditions such as denial of service attacks.

See Also:

• Constant Field Values