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

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

All Implemented Interfaces:

Serializable, PersistentField

Direct Known Subclasses:

PersistentFieldDynaBeanImplNew

public class PersistentFieldDynaBeanImpl
extends PersistentFieldBase

A PersistentField implementation accesses a property from a DynaBean. Note that because of the way that PersistentField works, at run time the type of the field could actually be different, since it depends on the DynaClass of the DynaBean that is given at runtime.

This implementation does not support nested fields.

Version:

$Id: PersistentFieldDynaBeanImpl.java,v 1.1 2007-08-24 22:17:35 ewestfal Exp $

See Also:

Serialized Form

Field Summary

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

PATH_TOKEN, rootObjectType

Constructor Summary

PersistentFieldDynaBeanImpl()

PersistentFieldDynaBeanImpl(Class aPropertyType, String aPropertyName)

Method Summary

Object	get(Object anObject) Returns the value of the field represented by this PersistentField, on the specified object.
Class	getType()
protected void	logGetProblem(Object anObject, String msg) Let's give the user some hints as to what could be wrong.
protected void	logSetProblem(Object anObject, Object aValue, String msg) Let's give the user some hints as to what could be wrong.
protected boolean	makeAccessible() A value of true indicates that this field should suppress Java language access checking when it is used.
void	set(Object anObject, Object aValue) 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

Constructor Detail

PersistentFieldDynaBeanImpl

public PersistentFieldDynaBeanImpl()

PersistentFieldDynaBeanImpl

public PersistentFieldDynaBeanImpl(Class aPropertyType,
                                   String aPropertyName)

Method Detail

set

public void set(Object anObject,
                Object aValue)
         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:

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

aValue - The value to set.

Throws:

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

See Also:

Field

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

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()

logSetProblem

protected void logSetProblem(Object anObject,
                             Object aValue,
                             String msg)

Let's give the user some hints as to what could be wrong.

logGetProblem

protected void logGetProblem(Object anObject,
                             String msg)

Let's give the user some hints as to what could be wrong.