javax.xml.namespace
Class QName

java.lang.Object
  javax.xml.namespace.QName

All Implemented Interfaces:

Serializable

public class QName
extends Object
implements Serializable

QName class represents the value of a qualified name as specified in XML Schema Part2: Datatypes specification.

The value of a QName contains a namespaceURI, a localPart and a prefix. The localPart provides the local part of the qualified name. The namespaceURI is a URI reference identifying the namespace.

Version:

1.1

See Also:

Serialized Form

Constructor Summary

QName(String localPart)
Constructor for the QName.

QName(String namespaceURI, String localPart)
Constructor for the QName.

QName(String namespaceURI, String localPart, String prefix)
Constructor for the QName.

Method Summary

boolean	equals(Object obj) Tests this QName for equality with another object.
String	getLocalPart() Gets the Local part for this QName
String	getNamespaceURI() Gets the Namespace URI for this QName
String	getPrefix() Gets the Prefix for this QName
int	hashCode() Returns a hash code value for this QName object.
String	toString() Returns a string representation of this QName
static QName	valueOf(String s) Returns a QName holding the value of the specified String.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

QName

public QName(String localPart)

Constructor for the QName.

Parameters:

localPart - Local part of the QName

QName

public QName(String namespaceURI,
             String localPart)

Constructor for the QName.

Parameters:

namespaceURI - Namespace URI for the QName

localPart - Local part of the QName.

QName

public QName(String namespaceURI,
             String localPart,
             String prefix)

Constructor for the QName.

Parameters:

namespaceURI - Namespace URI for the QName

localPart - Local part of the QName.

prefix - Prefix of the QName.

Method Detail

getNamespaceURI

public String getNamespaceURI()

Gets the Namespace URI for this QName

Returns:

Namespace URI

getLocalPart

public String getLocalPart()

Gets the Local part for this QName

Returns:

Local part

getPrefix

public String getPrefix()

Gets the Prefix for this QName

Returns:

Prefix

toString

public String toString()

Returns a string representation of this QName

Overrides:

toString in class Object

Returns:

a string representation of the QName

equals

public final boolean equals(Object obj)

Tests this QName for equality with another object.

If the given object is not a QName or is null then this method returns false.

For two QNames to be considered equal requires that both localPart and namespaceURI must be equal. This method uses String.equals to check equality of localPart and namespaceURI. Any class that extends QName is required to satisfy this equality contract.

This method satisfies the general contract of the Object.equals method.

Overrides:

equals in class Object

Parameters:

obj - the reference object with which to compare

Returns:

true if the given object is identical to this QName: false otherwise.

valueOf

public static QName valueOf(String s)

Returns a QName holding the value of the specified String.

The string must be in the form returned by the QName.toString() method, i.e. "{namespaceURI}localPart", with the "{namespaceURI}" part being optional.

This method doesn't do a full validation of the resulting QName. In particular, it doesn't check that the resulting namespace URI is a legal URI (per RFC 2396 and RFC 2732), nor that the resulting local part is a legal NCName per the XML Namespaces specification.

Parameters:

s - the string to be parsed

Returns:

QName corresponding to the given String

Throws:

IllegalArgumentException - If the specified String cannot be parsed as a QName

hashCode

public final int hashCode()

Returns a hash code value for this QName object. The hash code is based on both the localPart and namespaceURI parts of the QName. This method satisfies the general contract of the Object.hashCode method.

Overrides:

hashCode in class Object

Returns:

a hash code value for this Qname object