javax.xml.namespace
Class QName

java.lang.Object
  extended by javax.xml.namespace.QName
All Implemented Interfaces:
Serializable

public class QName
extends Object
implements Serializable

An XML qualified name.

Since:
1.3
See Also:
Serialized Form

Constructor Summary
QName(String localPart)
           
QName(String namespaceURI, String localPart)
           
QName(String namespaceURI, String localPart, String prefix)
           
 
Method Summary
 boolean equals(Object obj)
          Determine whether this Object is semantically equal to another Object.
 String getLocalPart()
           
 String getNamespaceURI()
           
 String getPrefix()
           
 int hashCode()
          Get a value that represents this Object, as uniquely as possible within the confines of an int.
 String toString()
          Convert this Object to a human-readable String.
static QName valueOf(String qNameAsString)
           
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

QName

public QName(String namespaceURI,
             String localPart)

QName

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

QName

public QName(String localPart)
Method Detail

getNamespaceURI

public String getNamespaceURI()

getLocalPart

public String getLocalPart()

getPrefix

public String getPrefix()

equals

public final boolean equals(Object obj)
Description copied from class: Object
Determine whether this Object is semantically equal to another Object.

There are some fairly strict requirements on this method which subclasses must follow:

This is typically overridden to throw a ClassCastException if the argument is not comparable to the class performing the comparison, but that is not a requirement. It is legal for a.equals(b) to be true even though a.getClass() != b.getClass(). Also, it is typical to never cause a NullPointerException.

In general, the Collections API (java.util) use the equals method rather than the == operator to compare objects. However, IdentityHashMap is an exception to this rule, for its own good reasons.

The default implementation returns this == o.

Overrides:
equals in class Object
Parameters:
obj - the Object to compare to
Returns:
whether this Object is semantically equal to another
See Also:
Object.hashCode()

hashCode

public final int hashCode()
Description copied from class: Object
Get a value that represents this Object, as uniquely as possible within the confines of an int.

There are some requirements on this method which subclasses must follow:

Notice that since hashCode is used in Hashtable and other hashing classes, a poor implementation will degrade the performance of hashing (so don't blindly implement it as returning a constant!). Also, if calculating the hash is time-consuming, a class may consider caching the results.

The default implementation returns System.identityHashCode(this)

Overrides:
hashCode in class Object
Returns:
the hash code for this Object
See Also:
Object.equals(Object), System.identityHashCode(Object)

toString

public String toString()
Description copied from class: Object
Convert this Object to a human-readable String. There are no limits placed on how long this String should be or what it should contain. We suggest you make it as intuitive as possible to be able to place it into System.out.println() and such.

It is typical, but not required, to ensure that this method never completes abruptly with a RuntimeException.

This method will be called when performing string concatenation with this object. If the result is null, string concatenation will instead use "null".

The default implementation returns getClass().getName() + "@" + Integer.toHexString(hashCode()).

Overrides:
toString in class Object
Returns:
the String representing this Object, which may be null
See Also:
Object.getClass(), Object.hashCode(), Class.getName(), Integer.toHexString(int)

valueOf

public static QName valueOf(String qNameAsString)