oracle.toplink.essentials.internal.descriptors

Class InstanceVariableAttributeAccessor

java.lang.Object

oracle.toplink.essentials.mappings.AttributeAccessor

oracle.toplink.essentials.internal.descriptors.InstanceVariableAttributeAccessor

All Implemented Interfaces:

Serializable, Cloneable

public class InstanceVariableAttributeAccessor
extends AttributeAccessor

Purpose: A wrapper class for handling cases when the domain object has instance varible to map to the database field.

Since:

TOPLink/Java 1.0

Author:

Sati

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected Field	attributeField The attribute name of an object is converted to Field type to access it reflectively

Fields inherited from class oracle.toplink.essentials.mappings.AttributeAccessor

attributeName

Constructor Summary

Constructors

Constructor and Description
InstanceVariableAttributeAccessor()

Method Summary

Modifier and Type	Method and Description
Class	getAttributeClass() Returns the class type of the attribute.
protected Field	getAttributeField() Returns the value of attributeField.
Class	getAttributeType() Returns the declared type of attributeField.
Object	getAttributeValueFromObject(Object anObject) Returns the value of the attribute on the specified object.
void	initializeAttributes(Class theJavaClass) instanceVariableName is converted to Field type.
protected void	setAttributeField(Field field) Sets the value of the attributeField.
void	setAttributeValueInObject(Object anObject, Object value) Sets the value of the instance variable in the object to the value.

Methods inherited from class oracle.toplink.essentials.mappings.AttributeAccessor

clone, getAttributeName, setAttributeName

Methods inherited from class java.lang.Object

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

Field Detail

attributeField

protected transient Field attributeField

The attribute name of an object is converted to Field type to access it reflectively

Constructor Detail

InstanceVariableAttributeAccessor

public InstanceVariableAttributeAccessor()

Method Detail

getAttributeClass

public Class getAttributeClass()

Returns the class type of the attribute.

Overrides:

getAttributeClass in class AttributeAccessor

getAttributeField

protected Field getAttributeField()

Returns the value of attributeField.

getAttributeType

public Class getAttributeType()

Returns the declared type of attributeField.

getAttributeValueFromObject

public Object getAttributeValueFromObject(Object anObject)
                                   throws DescriptorException

Returns the value of the attribute on the specified object.

Specified by:

getAttributeValueFromObject in class AttributeAccessor

Throws:

DescriptorException

initializeAttributes

public void initializeAttributes(Class theJavaClass)
                          throws DescriptorException

instanceVariableName is converted to Field type.

Overrides:

initializeAttributes in class AttributeAccessor

Throws:

DescriptorException

setAttributeField

protected void setAttributeField(Field field)

Sets the value of the attributeField.

setAttributeValueInObject

public void setAttributeValueInObject(Object anObject,
                                      Object value)
                               throws DescriptorException

Sets the value of the instance variable in the object to the value.

Specified by:

setAttributeValueInObject in class AttributeAccessor

Throws:

DescriptorException