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org.progeeks.meta
Class DeferredPropertyType  

java.lang.Object
  org.progeeks.meta.DeferredPropertyType

All Implemented Interfaces:

PropertyType

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public class DeferredPropertyType

extends java.lang.Object

implements PropertyType

Represents an unresolved property type of a meta-object. This is to support deferred resolution of property types within a meta-class. The actual functionality of the PropertyType implementation throws UnsupportedOperationExceptions since these operations cannot be done without resolving the type. When the type has been resolved within the meta-class it will be replaced with the real type.

Version:

$Revision: 1.3 $

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Field Summary
private  PropertyType	alternateType
private  java.lang.String	metaClassName

 

Constructor Summary

DeferredPropertyType(java.lang.String metaClassName)           Creates a deferred type the will resolve to the specified meta-class when resolution is requested.

DeferredPropertyType(java.lang.String metaClassName, PropertyType alternateType)           Creates a deferred type the will resolve to the specified meta-class when resolution is requested.

 

Method Summary
java.lang.Class	getBaseClass()           Returns the Java class upon which this property type is based.
boolean	isInstance(java.lang.Object obj)           Returns true if the specified object is an instance of this type.
PropertyType	resolveType(MetaClassRegistry registry)           Returns the replacement property type as can be resolved from the specified class registry.
java.lang.String	toString()           Convert this Object to a human-readable String.

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

 

Field Detail

metaClassName

private java.lang.String metaClassName

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alternateType

private PropertyType alternateType

Constructor Detail

DeferredPropertyType

public DeferredPropertyType(java.lang.String metaClassName)

Creates a deferred type the will resolve to the specified meta-class when resolution is requested. If the meta-class does not exist then an exception will be thrown.

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DeferredPropertyType

public DeferredPropertyType(java.lang.String metaClassName,
                            PropertyType alternateType)

Creates a deferred type the will resolve to the specified meta-class when resolution is requested. If the meta-class does not exist then the alternate type is returned.

Method Detail

resolveType

public PropertyType resolveType(MetaClassRegistry registry)

Returns the replacement property type as can be resolved from the specified class registry.

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getBaseClass

public java.lang.Class getBaseClass()

Returns the Java class upon which this property type is based.

Specified by:

getBaseClass in interface PropertyType

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isInstance

public boolean isInstance(java.lang.Object obj)

Returns true if the specified object is an instance of this type.

Specified by:

isInstance in interface PropertyType

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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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