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

java.lang.Object
  org.apache.ojb.broker.metadata.fieldaccess.AbstractPersistentField
      org.apache.ojb.broker.metadata.fieldaccess.PersistentFieldIntrospectorImpl

All Implemented Interfaces:

PersistentField, java.io.Serializable

public class PersistentFieldIntrospectorImpl

extends AbstractPersistentField

A PersistentField implementation using JavaBeans compliant calls only to access persistent attributes. No Reflection is needed. But for each attribute xxx there must be public getXxx() and setXxx() methods.

Version:

$Id: PersistentFieldIntrospectorImpl.java,v 1.4 2004/01/07 19:11:10 arminw Exp $

Author:

Jakob Braeuchi, Armin Waibel

See Also:

Serialized Form

Field Summary

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

field, fieldName, PATH_TOKEN, PERSISTENT_FIELD_IMPL_FOR_NESTED, rootObjectType

Constructor Summary

PersistentFieldIntrospectorImpl()

PersistentFieldIntrospectorImpl(java.lang.Class aClass, java.lang.String aPropertyName)

Method Summary

java.lang.Object	doGet(java.lang.Object anObject) Get the Value from anObject
void	doSet(java.lang.Object anObject, java.lang.Object aValue) Sets aValue for anObject
protected java.beans.PropertyDescriptor	findPropertyDescriptor(java.lang.Class aClass, java.lang.String aPropertyName) Get the PropertyDescriptor for aClass and aPropertyName
java.lang.Class	getDeclaringClass()
java.lang.String	getName()
protected java.beans.PropertyDescriptor	getPropertyDescriptor() Returns the PropertyDescriptor.
java.lang.Class	getType()
protected void	logProblem(java.lang.Object anObject, java.lang.Object aValue, java.lang.String msg) Let's give the user some hints as to what could be wrong.
boolean	makeAccessible() This implementation returns always 'false'.
protected void	setPropertyDescriptor(java.beans.PropertyDescriptor newPropertyDescriptor) Set PropertyDescriptor.
boolean	usesAccessorsAndMutators() Always returns 'false'.

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

buildMessageString, get, getField, getLog, getNestedObject, isNestedField, set, setNestedObject, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

PersistentFieldIntrospectorImpl

public PersistentFieldIntrospectorImpl()

PersistentFieldIntrospectorImpl

public PersistentFieldIntrospectorImpl(java.lang.Class aClass,
                                       java.lang.String aPropertyName)

Method Detail

getName

public java.lang.String getName()

Specified by:

getName in interface PersistentField

Overrides:

getName in class AbstractPersistentField

getType

public java.lang.Class getType()

Specified by:

getType in interface PersistentField

Overrides:

getType in class AbstractPersistentField

getDeclaringClass

public java.lang.Class getDeclaringClass()

Specified by:

getDeclaringClass in interface PersistentField

Overrides:

getDeclaringClass in class AbstractPersistentField

doSet

public void doSet(java.lang.Object anObject,
                  java.lang.Object aValue)
           throws MetadataException

Sets aValue for anObject

Specified by:

doSet in class AbstractPersistentField

Throws:

MetadataException

doGet

public java.lang.Object doGet(java.lang.Object anObject)
                       throws MetadataException

Get the Value from anObject

Specified by:

doGet in class AbstractPersistentField

Throws:

MetadataException

findPropertyDescriptor

protected java.beans.PropertyDescriptor findPropertyDescriptor(java.lang.Class aClass,
                                                               java.lang.String aPropertyName)

Get the PropertyDescriptor for aClass and aPropertyName

getPropertyDescriptor

protected java.beans.PropertyDescriptor getPropertyDescriptor()

Returns the PropertyDescriptor.

Returns:

java.beans.PropertyDescriptor

setPropertyDescriptor

protected void setPropertyDescriptor(java.beans.PropertyDescriptor newPropertyDescriptor)

Set PropertyDescriptor.

Parameters:

newPropertyDescriptor - java.beans.PropertyDescriptor

makeAccessible

public boolean makeAccessible()

This implementation returns always 'false'.

Specified by:

makeAccessible in class AbstractPersistentField

See Also:

AbstractPersistentField.makeAccessible()

usesAccessorsAndMutators

public boolean usesAccessorsAndMutators()

Always returns 'false'.

See Also:

PersistentField.usesAccessorsAndMutators()

logProblem

protected void logProblem(java.lang.Object anObject,
                          java.lang.Object aValue,
                          java.lang.String msg)

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