org.apache.cayenne.reflect
Class BaseProperty

java.lang.Object
  org.apache.cayenne.reflect.BaseProperty

All Implemented Interfaces:

Property

Direct Known Subclasses:

BaseArcProperty, SimpleAttributeProperty

public abstract class BaseProperty
extends Object
implements Property

An abstract property descriptor that delegates property access to an Accessor. Used as a superclass for other implementations.

Since:

3.0

Field Summary

protected Accessor	accessor
protected ClassDescriptor	owner

Constructor Summary

BaseProperty(ClassDescriptor owner, Accessor accessor)

Method Summary

String	getName() Returns property name.
void	injectValueHolder(Object object) Does nothing.
Object	readProperty(Object object) Returns a property value, inflating unresolved object if need.
Object	readPropertyDirectly(Object object) Returns a property value of an object without disturbing the object fault status.
String	toString()
abstract boolean	visit(PropertyVisitor visitor) A visitor accept method.
void	writeProperty(Object object, Object oldValue, Object newValue) Sets a property value, inflating unresolved object if need.
void	writePropertyDirectly(Object object, Object oldValue, 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, wait, wait, wait

Field Detail

owner

protected ClassDescriptor owner

accessor

protected Accessor accessor

Constructor Detail

BaseProperty

public BaseProperty(ClassDescriptor owner,
                    Accessor accessor)

Method Detail

readProperty

public Object readProperty(Object object)
                    throws PropertyException

Description copied from interface: Property

Returns a property value, inflating unresolved object if need.

Specified by:

readProperty in interface Property

Throws:

PropertyException

writeProperty

public void writeProperty(Object object,
                          Object oldValue,
                          Object newValue)
                   throws PropertyException

Description copied from interface: Property

Sets a property value, inflating unresolved object if need. Old value of the property is specified as a hint and can be ignored by the property implementor.

Specified by:

writeProperty in interface Property

Throws:

PropertyException

getName

public String getName()

Description copied from interface: Property

Returns property name.

Specified by:

getName in interface Property

visit

public abstract boolean visit(PropertyVisitor visitor)

Description copied from interface: Property

A visitor accept method.

Specified by:

visit in interface Property

Returns:

a status returned by the corresponding callback method of the visitor. It serves as an indication of whether peer properties processing is still needed.

injectValueHolder

public void injectValueHolder(Object object)
                       throws PropertyException

Does nothing.

Specified by:

injectValueHolder in interface Property

Throws:

PropertyException

readPropertyDirectly

public Object readPropertyDirectly(Object object)
                            throws PropertyException

Description copied from interface: Property

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

Specified by:

readPropertyDirectly in interface Property

Throws:

PropertyException

writePropertyDirectly

public void writePropertyDirectly(Object object,
                                  Object oldValue,
                                  Object newValue)
                           throws PropertyException

Description copied from interface: Property

Sets a property value of an object without disturbing the object fault status. Old value of the property is specified as a hint and can be ignored by the property implementor.

Specified by:

writePropertyDirectly in interface Property

Throws:

PropertyException

toString

public String toString()

Overrides:

toString in class Object