Package org.apache.cayenne.reflect

Class FieldAccessor

java.lang.Object

org.apache.cayenne.reflect.FieldAccessor

All Implemented Interfaces:

Serializable, Accessor

public class FieldAccessor
extends Object
implements Accessor

A PropertyAccessor that performs direct Field access.

Since:

1.2

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected Field	field
protected Object	nullValue
protected String	propertyName

Constructor Summary

Constructors

Constructor	Description
FieldAccessor(Class<?> objectClass, String propertyName, Class<?> propertyType)

Method Summary

Modifier and Type	Method	Description
String	getName()	Returns property name.
Object	getValue(Object object)	Returns a property value of an object without disturbing the object fault status.
protected Field	lookupFieldInHierarchy(Class<?> beanClass, String fieldName)	Recursively looks for a named field in a class hierarchy.
protected Field	prepareField(Class<?> beanClass, String propertyName, Class<?> propertyType)	Finds a field for the property, ensuring that direct access via reflection is possible.
void	setValue(Object object, Object newValue)	Sets a property value of an object without disturbing the object fault status.

Methods inherited from class java.lang.Object

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

Field Details

propertyName

protected String propertyName

field

protected Field field

nullValue

protected Object nullValue

Constructor Details

FieldAccessor

public FieldAccessor(Class<?> objectClass,
 String propertyName,
 Class<?> propertyType)

Method Details

getName

public String getName()

Description copied from interface: Accessor

Returns property name.

Specified by:

getName in interface Accessor

getValue

public Object getValue(Object object)
                throws PropertyException

Description copied from interface: Accessor

Returns a property value of an object without disturbing the object fault status.

Specified by:

getValue in interface Accessor

Throws:

PropertyException

setValue

public void setValue(Object object,
 Object newValue)
              throws PropertyException

Description copied from interface: Accessor

Sets a property value of an object without disturbing the object fault status. Old value of the property is specified as a hint.

Specified by:

setValue in interface Accessor

Throws:

PropertyException

Since:

3.0

prepareField

protected Field prepareField(Class<?> beanClass,
 String propertyName,
 Class<?> propertyType)

Finds a field for the property, ensuring that direct access via reflection is possible.

lookupFieldInHierarchy

protected Field lookupFieldInHierarchy(Class<?> beanClass,
 String fieldName)
                                throws SecurityException,
NoSuchFieldException

Recursively looks for a named field in a class hierarchy.

Throws:

SecurityException

NoSuchFieldException