org.apache.ojb.broker.metadata.fieldaccess
Class PersistentFieldAutoProxyImpl

java.lang.Object
  org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldBase
      org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldAutoProxyImpl

All Implemented Interfaces:

Serializable, PersistentField

Direct Known Subclasses:

PersistentFieldAutoProxyImplNew

public class PersistentFieldAutoProxyImpl
extends PersistentFieldBase

PeristentField implementation that attempts to detect the nature of the field it is persisting.

First checks to see if it is a Field, then Property, then DynaBean

It will match in that order.

See Also:

Serialized Form

Field Summary

protected Class[]

persistentFieldClasses Define the number and ordering of the used PersistentField implementaions.

Fields inherited from class org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldBase

PATH_TOKEN, rootObjectType

Constructor Summary

PersistentFieldAutoProxyImpl()

PersistentFieldAutoProxyImpl(Class clazz, String fieldname)

Method Summary

Object	get(Object anObject) Returns the value of the field represented by this PersistentField, on the specified object.
Class	getType()
protected boolean	makeAccessible() A value of true indicates that this field should suppress Java language access checking when it is used.
void	set(Object obj, Object value) Sets the field represented by this PersistentField object on the specified object argument to the specified new value.
boolean	usesAccessorsAndMutators()

Methods inherited from class org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldBase

buildErrorGetMsg, buildErrorSetMsg, getDeclaringClass, getFieldGraph, getLog, getName, toString

Methods inherited from class java.lang.Object

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

Field Detail

persistentFieldClasses

protected Class[] persistentFieldClasses

Define the number and ordering of the used PersistentField implementaions. Override this field to add new classes or to change setection order.

Constructor Detail

PersistentFieldAutoProxyImpl

public PersistentFieldAutoProxyImpl()

PersistentFieldAutoProxyImpl

public PersistentFieldAutoProxyImpl(Class clazz,
                                    String fieldname)

Method Detail

get

public Object get(Object anObject)
           throws MetadataException

Description copied from interface: PersistentField

Returns the value of the field represented by this PersistentField, on the specified object. This implementation invokes get() on its underlying Field object.

Parameters:

anObject - - The object instance (proxy objects are not allowed here) which we are trying to get the field value from.

Throws:

MetadataException - if there is an error getting this field value from obj

See Also:

Field

set

public void set(Object obj,
                Object value)
         throws MetadataException

Description copied from interface: PersistentField

Sets the field represented by this PersistentField object on the specified object argument to the specified new value. The new value is automatically unwrapped if the underlying field has a primitive type. This implementation invokes set() on its underlying Field object if the argument is not null. OBS IllegalArgumentExceptions are wrapped as PersistenceBrokerExceptions.

Parameters:

obj - The target object (no proxy objects allowed).

value - The value to set.

Throws:

MetadataException - if there is an error setting this field value on obj

See Also:

Field

getType

public Class getType()

makeAccessible

protected boolean makeAccessible()

Description copied from class: PersistentFieldBase

A value of true indicates that this field should suppress Java language access checking when it is used.

Specified by:

makeAccessible in class PersistentFieldBase

usesAccessorsAndMutators

public boolean usesAccessorsAndMutators()