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com.xpn.xwiki.objects
Class NumberProperty  

java.lang.Object
  com.xpn.xwiki.objects.BaseElement
      com.xpn.xwiki.objects.BaseProperty
          com.xpn.xwiki.objects.NumberProperty

All Implemented Interfaces:

ElementInterface, PropertyInterface, java.io.Serializable

Direct Known Subclasses:

DoubleProperty, FloatProperty, IntegerProperty, LongProperty

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public abstract class NumberProperty

extends BaseProperty

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Field Summary
private  java.lang.Number	value

 

Fields inherited from class com.xpn.xwiki.objects.BaseProperty

 

Fields inherited from class com.xpn.xwiki.objects.BaseElement

 

Constructor Summary

NumberProperty()

 

Method Summary
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.
java.lang.Object	getValue()
void	setValue(java.lang.Object value)
java.lang.String	toText()

 

Methods inherited from class com.xpn.xwiki.objects.BaseProperty

getClassType, getId, getObject, hashCode, setClassType, setId, setObject, toFormString, toString, toXML, toXMLString

 

Methods inherited from class com.xpn.xwiki.objects.BaseElement

getName, getPrettyName, setName, setPrettyName

 

Methods inherited from class java.lang.Object

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

 

Methods inherited from interface com.xpn.xwiki.objects.ElementInterface

getName, setName

 

Field Detail

value

private java.lang.Number value

Constructor Detail

NumberProperty

public NumberProperty()

Method Detail

getValue

public java.lang.Object getValue()

Overrides:

getValue in class BaseProperty

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setValue

public void setValue(java.lang.Object value)

Overrides:

setValue in class BaseProperty

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toText

public java.lang.String toText()

Overrides:

toText in class BaseProperty

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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.

Overrides:

equals in class BaseProperty

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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());
     }
 }
 

Overrides:

clone in class BaseProperty

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Home >> All >> com >> xpn >> xwiki >> [ objects overview ]	PREV CLASS  NEXT CLASS
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