[Java] Class QName

public class QName
extends Object
implements Serializable

Constructor Detail

public QName(String localPart)

Constructor for the QName.

Parameters:

localPart - Local part of the QName

public QName(String namespaceURI, String localPart)

Constructor for the QName.

Parameters:

namespaceURI - Namespace URI for the QName

localPart - Local part of the 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

public boolean equals(Object o)

Tests this QName for equality with another object.

If the given object is not a QName or String equivalent 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. If the supplied object is a String, then it is split in two on the last colon and the first half is compared against the prefix || namespaceURI and the second half is compared against the localPart i.e. assert new QName("namespace","localPart").equals("namespace:localPart") Intended Usage: for gpath accessors, e.g. root.'urn:mynamespace:node' Warning: this equivalence is not commutative, i.e. qname.equals(string) may be true/false but string.equals(qname) is always false

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

Parameters:

o - the reference object with which to compare

Returns:

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

public String getLocalPart()

Gets the Local part for this QName

Returns:

Local part

public String getNamespaceURI()

Gets the Namespace URI for this QName

Returns:

Namespace URI

public String getPrefix()

Gets the Prefix for this QName

Returns:

Prefix

public String getQualifiedName()

Returns the fully qualified name of this QName

Returns:

a string representation of the QName

public 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.

Returns:

a hash code value for this Qname object

public boolean matches(Object o)

Tests if this QName matches another object.

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

For two QNames to be considered matching requires that both localPart and namespaceURI must be equal or one of them is a wildcard. If the supplied object is a String, then it is split in two on the last colon and the first half is matched against the prefix || namespaceURI and the second half is matched against the localPart

Parameters:

o - the reference object with which to compare

Returns:

true if the given object matches this QName: false otherwise.

public String toString()

Returns a string representation of this QName

Returns:

a string representation of the QName

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.

throws:

java.lang.IllegalArgumentException If the specified String cannot be parsed as a QName

Parameters:

s - the string to be parsed

Returns:

QName corresponding to the given String