javax.xml
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

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	FEATURE_SECURE_PROCESSING           Feature for secure processing.
static  String	NULL_NS_URI           Namespace URI to use to represent that there is no Namespace.
static  String	RELAXNG_NS_URI           RELAX NG Namespace URI.
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	W3C_XPATH_DATATYPE_NS_URI           W3C XPath Datatype 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 , toString , wait , wait , wait

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

W3C_XPATH_DATATYPE_NS_URI

public static final StringW3C_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

Constructor Detail

RELAXNG_NS_URI XMLConstants

public static final String
public RELAXNG_NS_URI XMLConstants () 

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

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

See Also:

RELAX NG Specification

, Constant Field Values

Method Detail

FEATURE_SECURE_PROCESSING toString

public static final String FEATURE_SECURE_PROCESSING toString () 

Feature for secure processing. Human readable String of all XMLConstants public fields.

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

• 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 acording the letter of the XML specifications ingoring security issues such as limits on XML constructs to avoid conditions such as denial of service attacks.

See Also: Overrides:

Constant Field Values toString in class Object

Returns:

Human readable String of all XMLConstants public fields.