org.apache.axis.utils
Class BeanPropertyDescriptor

java.lang.Object
  |
  +--org.apache.axis.utils.BeanPropertyDescriptor

Direct Known Subclasses:

FieldPropertyDescriptor

public class BeanPropertyDescriptor

extends java.lang.Object

This class represents a field/property in a value type (a class with either bean-style getters/setters or public fields). It is essentially a thin wrapper around the PropertyDescriptor from the JavaBean utilities. We wrap it with this class so that we can create the subclass FieldPropertyDescriptor and access public fields (who wouldn't have PropertyDescriptors normally) via the same interface. There are also some interesting tricks where indexed properties are concerned, mostly involving the fact that we manage the arrays here rather than relying on the value type class to do it itself.

Author:

Rich Scheuerle , Glen Daniels (gdaniels@apache.org)

Field Summary

protected static org.apache.commons.logging.Log	log
protected java.beans.PropertyDescriptor	myPD
protected static java.lang.Object[]	noArgs

Constructor Summary

protected	BeanPropertyDescriptor() Protected constructor for use by our children
	BeanPropertyDescriptor(java.beans.PropertyDescriptor pd) Constructor (takes a PropertyDescriptor)

Method Summary

java.lang.Object	get(java.lang.Object obj) Get the property value
java.lang.Object	get(java.lang.Object obj, int i) Get an indexed property
java.lang.String	getName() Get our property name.
java.lang.Class	getType() Get the type of a property
protected void	growArrayToSize(java.lang.Object obj, java.lang.Class componentType, int i) Grow the array
boolean	isIndexed() Query if property is indexed.
boolean	isReadable() Query if property is readable
boolean	isWriteable() Query if property is writeable
void	set(java.lang.Object obj, int i, java.lang.Object newValue) Set an indexed property value
void	set(java.lang.Object obj, java.lang.Object newValue) Set the property value

Methods inherited from class java.lang.Object

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

Field Detail

log

protected static org.apache.commons.logging.Log log

myPD

protected java.beans.PropertyDescriptor myPD

noArgs

protected static final java.lang.Object[] noArgs

Constructor Detail

BeanPropertyDescriptor

public BeanPropertyDescriptor(java.beans.PropertyDescriptor pd)

Constructor (takes a PropertyDescriptor)

Parameters:

pd -

BeanPropertyDescriptor

protected BeanPropertyDescriptor()

Protected constructor for use by our children

Method Detail

getName

public java.lang.String getName()

Get our property name.

isReadable

public boolean isReadable()

Query if property is readable

Returns:

true if readable

isWriteable

public boolean isWriteable()

Query if property is writeable

Returns:

true if writeable

isIndexed

public boolean isIndexed()

Query if property is indexed.

Returns:

true if indexed methods exist

get

public java.lang.Object get(java.lang.Object obj)
                     throws java.lang.reflect.InvocationTargetException,
                            java.lang.IllegalAccessException

Get the property value

Parameters:

obj - is the object

Returns:

the entire propery value

java.lang.reflect.InvocationTargetException

java.lang.IllegalAccessException

set

public void set(java.lang.Object obj,
                java.lang.Object newValue)
         throws java.lang.reflect.InvocationTargetException,
                java.lang.IllegalAccessException

Set the property value

Parameters:

obj - is the object

newValue - is the new value

java.lang.reflect.InvocationTargetException

java.lang.IllegalAccessException

get

public java.lang.Object get(java.lang.Object obj,
                            int i)
                     throws java.lang.reflect.InvocationTargetException,
                            java.lang.IllegalAccessException

Get an indexed property

Parameters:

obj - is the object

i - the index

Returns:

the object at the indicated index

java.lang.reflect.InvocationTargetException

java.lang.IllegalAccessException

set

public void set(java.lang.Object obj,
                int i,
                java.lang.Object newValue)
         throws java.lang.reflect.InvocationTargetException,
                java.lang.IllegalAccessException

Set an indexed property value

Parameters:

obj - is the object

i - the index

newValue - is the new value

java.lang.reflect.InvocationTargetException

java.lang.IllegalAccessException

growArrayToSize

protected void growArrayToSize(java.lang.Object obj,
                               java.lang.Class componentType,
                               int i)
                        throws java.lang.reflect.InvocationTargetException,
                               java.lang.IllegalAccessException

Grow the array

Parameters:

obj -

componentType -

i -

Throws:

java.lang.reflect.InvocationTargetException

java.lang.IllegalAccessException

getType

public java.lang.Class getType()

Get the type of a property

Returns:

the type of the property