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sync4j.framework.core
Class DTDVersion  view DTDVersion download DTDVersion.java

java.lang.Object
  extended bysync4j.framework.core.DTDVersion

public final class DTDVersion
extends java.lang.Object

corresponds to the <VerDTD> tag in the SyncML devinf DTD todo : possibly eliminate this class and replace all usage with String

Version:
$Id: DTDVersion.java,v 1.2 2003/02/25 10:59:07 stefano_fornari Exp $

Field Summary
private  java.lang.String m_strValue
           
 
Constructor Summary
DTDVersion(java.lang.String strValue)
           
 
Method Summary
 boolean equals(java.lang.Object obj)
          Determine whether this Object is semantically equal to another Object.
 java.lang.String getValue()
           
 java.lang.String toString()
          Convert this Object to a human-readable String.
 java.lang.String toXML()
          Changed to "public" access type because it will be used by sync4j.dm package.
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

m_strValue

private final java.lang.String m_strValue
Constructor Detail

DTDVersion

public DTDVersion(java.lang.String strValue)
Method Detail

getValue

public java.lang.String getValue()

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()).


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.


toXML

public java.lang.String toXML()
Changed to "public" access type because it will be used by sync4j.dm package.