javax.xml
Class XMLConstants

java.lang.Object
  extended by javax.xml.XMLConstants
public final class XMLConstants
extends Object

Utility class to contain basic XML values as constants.

Since:
1.5
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
static String DEFAULT_NS_PREFIX
          Prefix to use to represent the default XML Namespace.
static String NULL_NS_URI
          Namespace URI to use to represent that there is no Namespace.
static String W3C_XML_SCHEMA_INSTANCE_NS_URI
          W3C XML Schema Instance Namespace URI.
static String W3C_XML_SCHEMA_NS_URI
          W3C XML Schema Namespace URI.
static String XML_DTD_NS_URI
          XML Document Type Declaration Namespace URI as an arbitrary value.
static String XML_NS_PREFIX
          The official XML Namespace prefix.
static String XML_NS_URI
          The official XML Namespace name URI.
static String XMLNS_ATTRIBUTE
          The official XML attribute used for specifying XML Namespace declarations.
static String XMLNS_ATTRIBUTE_NS_URI
          The official XML attribute used for specifying XML Namespace declarations, XMLConstants.XMLNS_ATTRIBUTE, Namespace name URI.
 
Constructor Summary
XMLConstants()
          XMLConstants is final and only includes static final values.
 
Method Summary
 String toString()
          Human readable String of all XMLConstants public fields.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

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 Names<, 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

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
Constructor Detail

XMLConstants

public XMLConstants()

XMLConstants is final and only includes static final values. A constructor is needed to allow toString() to be invoked.

Method Detail

toString

public final String toString()

Human readable String of all XMLConstants public fields.

This method satisfies the general contract of Object.toString().

Overrides:
toString in class Object
Returns:
Human readable String of all XMLConstants public fields.