public class BasicDynaClass extends Object implements DynaClass, Serializable
Minimal implementation of the DynaClass
interface. Can be
used as a convenience base class for more sophisticated implementations.
IMPLEMENTATION NOTE - The DynaBean
implementation class supplied to our constructor MUST have a one-argument
constructor of its own that accepts a DynaClass
. This is
used to associate the DynaBean instance with this DynaClass.
Modifier and Type | Field and Description |
---|---|
protected Constructor<?> |
constructor
The constructor of the
dynaBeanClass that we will use
for creating new instances. |
protected static Class<?>[] |
constructorTypes
The method signature of the constructor we will use to create
new DynaBean instances.
|
protected Object[] |
constructorValues
The argument values to be passed to the constructore we will use
to create new DynaBean instances.
|
protected Class<?> |
dynaBeanClass
The
DynaBean implementation class we will use for
creating new instances. |
protected String |
name
The "name" of this DynaBean class.
|
protected DynaProperty[] |
properties
The set of dynamic properties that are part of this DynaClass.
|
protected HashMap<String,DynaProperty> |
propertiesMap
The set of dynamic properties that are part of this DynaClass,
keyed by the property name.
|
Constructor and Description |
---|
BasicDynaClass()
Construct a new BasicDynaClass with default parameters.
|
BasicDynaClass(String name,
Class<?> dynaBeanClass)
Construct a new BasicDynaClass with the specified parameters.
|
BasicDynaClass(String name,
Class<?> dynaBeanClass,
DynaProperty[] properties)
Construct a new BasicDynaClass with the specified parameters.
|
Modifier and Type | Method and Description |
---|---|
Class<?> |
getDynaBeanClass()
Return the Class object we will use to create new instances in the
newInstance() method. |
DynaProperty[] |
getDynaProperties()
Return an array of
ProperyDescriptors for the properties
currently defined in this DynaClass. |
DynaProperty |
getDynaProperty(String name)
Return a property descriptor for the specified property, if it exists;
otherwise, return
null . |
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. |
DynaBean |
newInstance()
Instantiate and return a new DynaBean instance, associated
with this DynaClass.
|
protected void |
setDynaBeanClass(Class<?> dynaBeanClass)
Set the Class object we will use to create new instances in the
newInstance() method. |
protected void |
setProperties(DynaProperty[] properties)
Set the list of dynamic properties supported by this DynaClass.
|
protected transient Constructor<?> constructor
dynaBeanClass
that we will use
for creating new instances.protected static Class<?>[] constructorTypes
protected Object[] constructorValues
protected Class<?> dynaBeanClass
DynaBean
implementation class we will use for
creating new instances.protected DynaProperty[] properties
protected HashMap<String,DynaProperty> propertiesMap
properties
list.public BasicDynaClass()
public BasicDynaClass(String name, Class<?> dynaBeanClass)
name
- Name of this DynaBean classdynaBeanClass
- The implementation class for new instancespublic BasicDynaClass(String name, Class<?> dynaBeanClass, DynaProperty[] properties)
name
- Name of this DynaBean classdynaBeanClass
- The implementation class for new intancesproperties
- Property descriptors for the supported propertiespublic String getName()
getName()
method of java.lang.Class
DynaClass implementation class to support
different dynamic classes, with different sets of properties.public DynaProperty getDynaProperty(String name)
null
.getDynaProperty
in interface DynaClass
name
- Name of the dynamic property for which a descriptor
is requestedIllegalArgumentException
- 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 IllegalAccessException, InstantiationException
newInstance
in interface DynaClass
DynaBean
instanceIllegalAccessException
- if the Class or the appropriate
constructor is not accessibleInstantiationException
- if this Class represents an abstract
class, an array class, a primitive type, or void; or if instantiation
fails for some other reasonpublic Class<?> getDynaBeanClass()
newInstance()
method. This Class MUST
implement the DynaBean
interface.DynaBean
protected void setDynaBeanClass(Class<?> dynaBeanClass)
newInstance()
method. This Class MUST
implement the DynaBean
interface.dynaBeanClass
- The new Class objectIllegalArgumentException
- if the specified Class does not
implement the DynaBean
interfaceprotected void setProperties(DynaProperty[] properties)
properties
- List of dynamic properties to be supportedCopyright © 2000–2019 The Apache Software Foundation. All rights reserved.