org.apache.commons.beanutils
public class WrapDynaClass extends java.lang.Object implements DynaClass
Implementation of DynaClass
for DynaBeans that wrap
standard JavaBean instances.
It is suggested that this class should not usually need to be used directly
to create new WrapDynaBean
instances.
It's usually better to call the WrapDynaBean
constructor directly.
For example:
Object javaBean = ...;
DynaBean wrapper = new WrapDynaBean(javaBean);
Modifier and Type | Field and Description |
---|---|
protected java.lang.Class |
beanClass
The JavaBean
Class which is represented by this
WrapDynaClass . |
protected java.beans.PropertyDescriptor[] |
descriptors
The set of PropertyDescriptors for this bean class.
|
protected java.util.HashMap |
descriptorsMap
The set of PropertyDescriptors for this bean class, keyed by the
property name.
|
protected static java.util.HashMap |
dynaClasses
The set of
WrapDynaClass instances that have ever been
created, keyed by the underlying bean Class. |
protected DynaProperty[] |
properties
The set of dynamic properties that are part of this DynaClass.
|
protected java.util.HashMap |
propertiesMap
The set of dynamic properties that are part of this DynaClass,
keyed by the property name.
|
Modifier | Constructor and Description |
---|---|
private |
WrapDynaClass(java.lang.Class beanClass)
Construct a new WrapDynaClass for the specified JavaBean class.
|
Modifier and Type | Method and Description |
---|---|
static void |
clear()
Clear our cache of WrapDynaClass instances.
|
static WrapDynaClass |
createDynaClass(java.lang.Class beanClass)
Create (if necessary) and return a new
WrapDynaClass
instance for the specified bean class. |
DynaProperty[] |
getDynaProperties()
Return an array of
ProperyDescriptors for the properties
currently defined in this DynaClass. |
DynaProperty |
getDynaProperty(java.lang.String name)
Return a property descriptor for the specified property, if it exists;
otherwise, return
null . |
java.lang.String |
getName()
Return the name of this DynaClass (analogous to the
getName() method of java.lang.Class DynaClass implementation class to support
different dynamic classes, with different sets of properties. |
java.beans.PropertyDescriptor |
getPropertyDescriptor(java.lang.String name)
Return the PropertyDescriptor for the specified property name, if any;
otherwise return
null . |
protected void |
introspect()
Introspect our bean class to identify the supported properties.
|
DynaBean |
newInstance()
Instantiates a new standard JavaBean instance associated with
this DynaClass and return it wrapped in a new WrapDynaBean
instance.
|
protected java.lang.Class beanClass
Class
which is represented by this
WrapDynaClass
.protected java.beans.PropertyDescriptor[] descriptors
protected java.util.HashMap descriptorsMap
descriptors
list.protected DynaProperty[] properties
protected java.util.HashMap propertiesMap
properties
list.protected static java.util.HashMap dynaClasses
WrapDynaClass
instances that have ever been
created, keyed by the underlying bean Class.private WrapDynaClass(java.lang.Class beanClass)
createDynaClass(Class)
method.beanClass
- JavaBean class to be introspected aroundpublic java.lang.String getName()
getName()
method of java.lang.Class
DynaClass implementation class to support
different dynamic classes, with different sets of properties.public DynaProperty getDynaProperty(java.lang.String name)
null
.getDynaProperty
in interface DynaClass
name
- Name of the dynamic property for which a descriptor
is requestedjava.lang.IllegalArgumentException
- if no property name is specifiedpublic DynaProperty[] getDynaProperties()
Return an array of ProperyDescriptors
for the properties
currently defined in this DynaClass. If no properties are defined, a
zero-length array will be returned.
FIXME - Should we really be implementing
getBeanInfo()
instead, which returns property descriptors
and a bunch of other stuff?
getDynaProperties
in interface DynaClass
public DynaBean newInstance() throws java.lang.IllegalAccessException, java.lang.InstantiationException
Instantiates a new standard JavaBean instance associated with this DynaClass and return it wrapped in a new WrapDynaBean instance. NOTE the JavaBean should have a no argument constructor.
NOTE - Most common use cases should not need to use this method. It is usually better to create newWrapDynaBean
instances by calling its constructor.
For example:
Object javaBean = ...;
DynaBean wrapper = new WrapDynaBean(javaBean);
(This method is needed for some kinds of DynaBean
framework.)
newInstance
in interface DynaClass
java.lang.IllegalAccessException
- if the Class or the appropriate
constructor is not accessiblejava.lang.InstantiationException
- if this Class represents an abstract
class, an array class, a primitive type, or void; or if instantiation
fails for some other reasonpublic java.beans.PropertyDescriptor getPropertyDescriptor(java.lang.String name)
null
.name
- Name of the property to be retrievedpublic static void clear()
public static WrapDynaClass createDynaClass(java.lang.Class beanClass)
WrapDynaClass
instance for the specified bean class.beanClass
- Bean class for which a WrapDynaClass is requestedprotected void introspect()
Copyright (c) 2001-2004 - Apache Software Foundation