com.ibm.commons.iloader.node.loaders
Class JavaBeanLoader

java.lang.Object
  com.ibm.commons.iloader.node.loaders.AbstractLoader
      com.ibm.commons.iloader.node.loaders.JavaBeanLoader

All Implemented Interfaces:

ILoader

public class JavaBeanLoader
extends AbstractLoader

An ILoader that adapts to a JavaBean model.

Constructor Summary

JavaBeanLoader(JavaBeanLoader parent, java.lang.String namespace)
Creates a new instance of this class.

JavaBeanLoader(java.lang.String namespace)
Creates a new instance of this class.

Method Summary

protected boolean	acceptClass(java.lang.Class c)
protected boolean	acceptProperty(java.lang.Class clazz, java.beans.PropertyDescriptor pd)
protected IMember	createMember(IClassDef parent, java.lang.Class clazz, java.beans.PropertyDescriptor pd)
java.lang.ClassLoader	getClassLoader() Returns the class loader that is used by this JavaBeanLoader
IClassDef	getClassOf(java.lang.Object object) Get the class for a particular object.
static JavaBeanLoader	getDefault()
java.util.Iterator	getInheritingClassesOf(IClassDef classDef) Returns a iterator of all of the classes that inherit from the provided IClassDef.
java.lang.String[]	getNamespaces() Get the list of namespaces handled by this loader.
java.lang.Object	getObject(java.lang.Object instance, IAttribute attribute) Get an object value for the given attribute.
IObjectCollection	getObjectCollection(java.lang.Object instance, ICollection collection) Get an object collection based on the provided property (ICollection).
java.lang.String	getValue(java.lang.Object instance, IAttribute attribute) Returns a string value for the given attribute.
IValueCollection	getValueCollection(java.lang.Object instance, ICollection collection) Get a value collection based on the provided property (ICollection).
boolean	handleNamespace(java.lang.String namespace) Check if the loader is using a particular namespace
boolean	isInstanceOf(java.lang.Object object, IClassDef classDef) Returns whether or not the provided object is an instance of the given classdef object.
boolean	isNativeClass(java.lang.Object o) Check is an object is a native class.
boolean	isNativeObject(java.lang.Object o) Determines if the provided object is supported by the current ILoader instance.
IClassDef	loadClass(java.lang.String namespace, java.lang.String className) Load a class giving a name.
IClassDef	loadNativeClass(java.lang.Class nativeClass) Loads a IClassDef object for the given native class.
void	setClassLoader(java.lang.ClassLoader classLoader) Sets the class loader to be used by this JavaBeanLoader
void	setObject(java.lang.Object instance, IAttribute attribute, java.lang.Object value, DataChangeNotifier dataChangeNotifier) Sets an object value for the given attribute.
void	setValue(java.lang.Object instance, IAttribute attribute, java.lang.String value, DataChangeNotifier dataChangeNotifier) Sets the given attribute's value.

Methods inherited from class java.lang.Object

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

Constructor Detail

JavaBeanLoader

public JavaBeanLoader(JavaBeanLoader parent,
                      java.lang.String namespace)

Creates a new instance of this class.

Parameters:

parent - the parent JavaBeanLoader of this loader.

namespace - the namespace that this loader can handle

JavaBeanLoader

public JavaBeanLoader(java.lang.String namespace)

Creates a new instance of this class.

Parameters:

namespace - the namespace that this loader can handle

Method Detail

getDefault

public static JavaBeanLoader getDefault()

getClassLoader

public java.lang.ClassLoader getClassLoader()

Returns the class loader that is used by this JavaBeanLoader

Returns:

setClassLoader

public void setClassLoader(java.lang.ClassLoader classLoader)

Sets the class loader to be used by this JavaBeanLoader

Parameters:

classLoader -

acceptClass

protected boolean acceptClass(java.lang.Class c)

acceptProperty

protected boolean acceptProperty(java.lang.Class clazz,
                                 java.beans.PropertyDescriptor pd)

createMember

protected IMember createMember(IClassDef parent,
                               java.lang.Class clazz,
                               java.beans.PropertyDescriptor pd)
                        throws com.ibm.commons.iloader.node.NodeException

Throws:

com.ibm.commons.iloader.node.NodeException

handleNamespace

public boolean handleNamespace(java.lang.String namespace)

Description copied from interface: ILoader

Check if the loader is using a particular namespace

Returns:

returns true if the provided namespace is supported by the current loader

getNamespaces

public java.lang.String[] getNamespaces()

Description copied from interface: ILoader

Get the list of namespaces handled by this loader.

Returns:

returns the qualified names of all supported namespaces

isNativeClass

public boolean isNativeClass(java.lang.Object o)

Description copied from interface: ILoader

Check is an object is a native class.

Returns:

returns true if the object provided is assignable from the current loader.

loadClass

public IClassDef loadClass(java.lang.String namespace,
                           java.lang.String className)
                    throws com.ibm.commons.iloader.node.NodeException

Description copied from interface: ILoader

Load a class giving a name.

Parameters:

namespace - the namespace that the IClassDef is to correspond to

className - the desired class

Returns:

a IClassDef object for the given classname and namespace

Throws:

com.ibm.commons.iloader.node.NodeException

getClassOf

public IClassDef getClassOf(java.lang.Object object)
                     throws com.ibm.commons.iloader.node.NodeException

Description copied from interface: ILoader

Get the class for a particular object.

Parameters:

object - an object whose IClassDef is required

Returns:

returns the IClassDef for the given object

Throws:

NodeException - throws a NodeException if the provided object is supported by the ILoader.

isInstanceOf

public boolean isInstanceOf(java.lang.Object object,
                            IClassDef classDef)
                     throws com.ibm.commons.iloader.node.NodeException

Returns whether or not the provided object is an instance of the given classdef object.

Parameters:

object - the object under test

classDef - the classdef to test against

Returns:

returns true if the given object is an instance of the given classdef

Throws:

com.ibm.commons.iloader.node.NodeException

loadNativeClass

public IClassDef loadNativeClass(java.lang.Class nativeClass)
                          throws com.ibm.commons.iloader.node.NodeException

Loads a IClassDef object for the given native class.

Parameters:

nativeClass -

Returns:

Throws:

com.ibm.commons.iloader.node.NodeException - throws a NodeException if a IClassDef object cannot be loaded for the given nativeClass

isNativeObject

public boolean isNativeObject(java.lang.Object o)

Description copied from interface: ILoader

Determines if the provided object is supported by the current ILoader instance.

Returns:

returns true if the provided object is supported by the ILoader

getValue

public java.lang.String getValue(java.lang.Object instance,
                                 IAttribute attribute)
                          throws com.ibm.commons.iloader.node.NodeException

Description copied from interface: ILoader

Returns a string value for the given attribute. The ILoader determines the value of the attribute in the model supported by the ILoader.

Parameters:

instance - an instance of the model that contains the given attribute

attribute - the attribute whose value is sought

Returns:

returns a string for the given attribute

Throws:

com.ibm.commons.iloader.node.NodeException

See Also:

IAttribute

setValue

public void setValue(java.lang.Object instance,
                     IAttribute attribute,
                     java.lang.String value,
                     DataChangeNotifier dataChangeNotifier)
              throws com.ibm.commons.iloader.node.NodeException

Description copied from interface: ILoader

Sets the given attribute's value.

Parameters:

instance - an instance of the model that contains the given attribute

attribute - the attribute whose value is to be set

value - the value to set the attribute to

Throws:

NodeException - throws a NodeException if the given attribute is not supported by the ILoader

See Also:

IAttribute

getObject

public java.lang.Object getObject(java.lang.Object instance,
                                  IAttribute attribute)
                           throws com.ibm.commons.iloader.node.NodeException

Description copied from interface: ILoader

Get an object value for the given attribute.

Parameters:

instance - an instance of the model that contains the given attribute

attribute - the attribute whose value is to be set

Returns:

returns a object for the given attribute

Throws:

NodeException - throws a NodeException if the particular object/attribute is not supported by the current ILoader

See Also:

IAttribute

setObject

public void setObject(java.lang.Object instance,
                      IAttribute attribute,
                      java.lang.Object value,
                      DataChangeNotifier dataChangeNotifier)
               throws com.ibm.commons.iloader.node.NodeException

Description copied from interface: ILoader

Sets an object value for the given attribute.

Parameters:

instance - an instance of the model that contains the given attribute

attribute - the attribute whose value is to be set

value - the value that is to be set on the IAttribute

dataChangeNotifier - a notifier that should be notified when the value changes

Throws:

NodeException - throws a NodeException if the particular object/attribute is not supported by the current ILoader

See Also:

IAttribute

getValueCollection

public IValueCollection getValueCollection(java.lang.Object instance,
                                           ICollection collection)
                                    throws com.ibm.commons.iloader.node.NodeException

Description copied from interface: ILoader

Get a value collection based on the provided property (ICollection).

Parameters:

instance - an instance of the model that contains the given collection

collection - the ICollection whose value is sought

Returns:

returns an IValueCollection

Throws:

NodeException - throws a NodeException if the particular object/attribute is not supported by the current ILoader

See Also:

ICollection

getObjectCollection

public IObjectCollection getObjectCollection(java.lang.Object instance,
                                             ICollection collection)
                                      throws com.ibm.commons.iloader.node.NodeException

Description copied from interface: ILoader

Get an object collection based on the provided property (ICollection).

Parameters:

instance - an instance of the model that contains the given collection

collection - the ICollection whose value is sought

Returns:

returns an IObjectCollection

Throws:

NodeException - throws a NodeException if the particular object/attribute is not supported by the current ILoader

See Also:

ICollection

getInheritingClassesOf

public java.util.Iterator getInheritingClassesOf(IClassDef classDef)

Description copied from interface: ILoader

Returns a iterator of all of the classes that inherit from the provided IClassDef.

Returns:

an Iterator of IClassDef containing concrete classes that implements and IClassDef