Added in API level 1

Summary: Constants | Inherited Methods

XMLConstants

public final class XMLConstants
extends Object

java.lang.Object
↳	javax.xml.XMLConstants

---

Utility class to contain basic XML values as constants.

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

Summary

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

Inherited methods

From class java.lang.Object Object clone() Creates and returns a copy of this object. boolean equals(Object obj) Indicates whether some other object is "equal to" this one. void finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. final Class<?> getClass() Returns the runtime class of this Object. int hashCode() Returns a hash code value for the object. final void notify() Wakes up a single thread that is waiting on this object's monitor. final void notifyAll() Wakes up all threads that are waiting on this object's monitor. String toString() Returns a string representation of the object. final void wait(long timeoutMillis, int nanos) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed. final void wait(long timeoutMillis) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed. final void wait() Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Constants

DEFAULT_NS_PREFIX

Added in API level 1

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 Value: ""

FEATURE_SECURE_PROCESSING

Added in API level 1

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.

Constant Value: "http://javax.xml.XMLConstants/feature/secure-processing"

NULL_NS_URI

Added in API level 1

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 Value: ""

RELAXNG_NS_URI

Added in API level 1

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 Value: "http://relaxng.org/ns/structure/1.0"

W3C_XML_SCHEMA_INSTANCE_NS_URI

Added in API level 1

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 Value: "http://www.w3.org/2001/XMLSchema-instance"

W3C_XML_SCHEMA_NS_URI

Added in API level 1

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 Value: "http://www.w3.org/2001/XMLSchema"

W3C_XPATH_DATATYPE_NS_URI

Added in API level 1

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 Value: "http://www.w3.org/2003/11/xpath-datatypes"

XMLNS_ATTRIBUTE

Added in API level 1

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 Value: "xmlns"

XMLNS_ATTRIBUTE_NS_URI

Added in API level 1

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 Value: "http://www.w3.org/2000/xmlns/"

XML_DTD_NS_URI

Added in API level 1

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".

Constant Value: "http://www.w3.org/TR/REC-xml"

XML_NS_PREFIX

Added in API level 1

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 Value: "xml"

XML_NS_URI

Added in API level 1

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 Value: "http://www.w3.org/XML/1998/namespace"