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javax.naming
Class Reference  

java.lang.Object
  javax.naming.Reference

All Implemented Interfaces:

java.lang.Cloneable, java.io.Serializable

Direct Known Subclasses:

LinkRef

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public class Reference

extends java.lang.Object

implements java.lang.Cloneable, java.io.Serializable

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Field Summary
protected  java.util.Vector	addrs
protected  java.lang.String	classFactory
protected  java.lang.String	classFactoryLocation
protected  java.lang.String	className
private static long	serialVersionUID

 

Constructor Summary

Reference(java.lang.String className)

Reference(java.lang.String className, RefAddr addr)

Reference(java.lang.String className, RefAddr addr, java.lang.String factory, java.lang.String factoryLocation)

Reference(java.lang.String className, java.lang.String factory, java.lang.String factoryLocation)

 

Method Summary
void	add(int posn, RefAddr addr)
void	add(RefAddr addr)
void	clear()
java.lang.Object	clone()           This method may be called to create a new copy of the Object.
boolean	equals(java.lang.Object obj)           Determine whether this Object is semantically equal to another Object.
private  boolean	equals(java.lang.String a, java.lang.String b)
RefAddr	get(int posn)
RefAddr	get(java.lang.String addrType)
java.util.Enumeration	getAll()
java.lang.String	getClassName()
java.lang.String	getFactoryClassLocation()
java.lang.String	getFactoryClassName()
int	hashCode()           Get a value that represents this Object, as uniquely as possible within the confines of an int.
java.lang.Object	remove(int posn)
int	size()
java.lang.String	toString()           Convert this Object to a human-readable String.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

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addrs

protected java.util.Vector addrs

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classFactory

protected java.lang.String classFactory

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classFactoryLocation

protected java.lang.String classFactoryLocation

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className

protected java.lang.String className

Constructor Detail

Reference

public Reference(java.lang.String className)

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Reference

public Reference(java.lang.String className,
                 RefAddr addr)

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Reference

public Reference(java.lang.String className,
                 java.lang.String factory,
                 java.lang.String factoryLocation)

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Reference

public Reference(java.lang.String className,
                 RefAddr addr,
                 java.lang.String factory,
                 java.lang.String factoryLocation)

Method Detail

add

public void add(int posn,
                RefAddr addr)

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add

public void add(RefAddr addr)

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clear

public void clear()

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clone

public java.lang.Object clone()

Description copied from class: java.lang.Object

This method may be called to create a new copy of the Object. The typical behavior is as follows:

• o == o.clone() is false
• o.getClass() == o.clone().getClass() is true
• o.equals(o) is true

However, these are not strict requirements, and may be violated if necessary. Of the three requirements, the last is the most commonly violated, particularly if the subclass does not override Object.equals(Object)>Object.equals(Object) 55 .

If the Object you call clone() on does not implement java.lang.Cloneable (which is a placeholder interface), then a CloneNotSupportedException is thrown. Notice that Object does not implement Cloneable; this method exists as a convenience for subclasses that do.

Object's implementation of clone allocates space for the new Object using the correct class, without calling any constructors, and then fills in all of the new field values with the old field values. Thus, it is a shallow copy. However, subclasses are permitted to make a deep copy.

All array types implement Cloneable, and override this method as follows (it should never fail):

 public Object clone()
 {
   try
     {
       super.clone();
     }
   catch (CloneNotSupportedException e)
     {
       throw new InternalError(e.getMessage());
     }
 }
 

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equals

private boolean equals(java.lang.String a,
                       java.lang.String b)

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equals

public boolean equals(java.lang.Object obj)

Description copied from class: java.lang.Object

Determine whether this Object is semantically equal to another Object.

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

• It must be transitive. If a.equals(b) and b.equals(c), then a.equals(c) must be true as well.
• It must be symmetric. a.equals(b) and b.equals(a) must have the same value.
• It must be reflexive. a.equals(a) must always be true.
• It must be consistent. Whichever value a.equals(b) returns on the first invocation must be the value returned on all later invocations.
• a.equals(null) must be false.
• It must be consistent with hashCode(). That is, a.equals(b) must imply a.hashCode() == b.hashCode(). The reverse is not true; two objects that are not equal may have the same hashcode, but that has the potential to harm hashing performance.

This is typically overridden to throw a java.lang.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 java.lang.NullPointerException.

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

The default implementation returns this == o.

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get

public RefAddr get(int posn)

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get

public RefAddr get(java.lang.String addrType)

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getAll

public java.util.Enumeration getAll()

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getClassName

public java.lang.String getClassName()

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getFactoryClassLocation

public java.lang.String getFactoryClassLocation()

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getFactoryClassName

public java.lang.String getFactoryClassName()

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hashCode

public int hashCode()

Description copied from class: java.lang.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:

• Semantic equality implies identical hashcodes. In other words, if a.equals(b) is true, then a.hashCode() == b.hashCode() must be as well. However, the reverse is not necessarily true, and two objects may have the same hashcode without being equal.
• It must be consistent. Whichever value o.hashCode() returns on the first invocation must be the value returned on all later invocations as long as the object exists. Notice, however, that the result of hashCode may change between separate executions of a Virtual Machine, because it is not invoked on the same object.

Notice that since hashCode is used in java.util.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)

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remove

public java.lang.Object remove(int posn)

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size

public int size()

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toString

public java.lang.String toString()

Description copied from class: java.lang.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() 55 and such.

It is typical, but not required, to ensure that this method never completes abruptly with a java.lang.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()).

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Home >> All >> javax >> [ naming overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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