org.apache.ojb.otm.copy
Class ReflectiveObjectCopyStrategy

java.lang.Object
  org.apache.ojb.otm.copy.ReflectiveObjectCopyStrategy

All Implemented Interfaces:

ObjectCopyStrategy

public final class ReflectiveObjectCopyStrategy
extends Object
implements ObjectCopyStrategy

User: matthew.baird Date: Jul 7, 2003 Time: 3:05:22 PM

Nested Class Summary

private static class

ReflectiveObjectCopyStrategy.ClassMetadata

Field Summary

private static SerializeObjectCopyStrategy	_serialize
private static Class[]	EMPTY_CLASS_ARRAY
private static Object[]	EMPTY_OBJECT_ARRAY
private static Set	FINAL_IMMUTABLE_CLASSES

Constructor Summary

ReflectiveObjectCopyStrategy()

Method Summary

private static Object	clone(Object toCopy, Map objMap, Map metadataMap)
private static void	cloneAndSetFieldValue(Field field, Object src, Object dest, Map objMap, Map metadataMap)
Object	copy(Object toCopy, PersistenceBroker broker) makes a deep clone of the object, using reflection.
private static void	copyClass(Map metadataMap, Class c, Object obj, Object retval, Map objMap)
private static Object	handleArray(Object obj, Map objMap, Class objClass, Map metadataMap)
private static Object	handleObjectWithNoArgsConstructor(Map metadataMap, Class objClass, Map objMap, Object toCopy)
private static void	setFields(Object from, Object to, Field[] fields, boolean accessible, Map objMap, Map metadataMap) copy all fields from the "from" object to the "to" object.

Methods inherited from class java.lang.Object

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

Field Detail

FINAL_IMMUTABLE_CLASSES

private static final Set FINAL_IMMUTABLE_CLASSES

EMPTY_OBJECT_ARRAY

private static final Object[] EMPTY_OBJECT_ARRAY

EMPTY_CLASS_ARRAY

private static final Class[] EMPTY_CLASS_ARRAY

_serialize

private static final SerializeObjectCopyStrategy _serialize

Constructor Detail

ReflectiveObjectCopyStrategy

public ReflectiveObjectCopyStrategy()

Method Detail

copy

public final Object copy(Object toCopy,
                         PersistenceBroker broker)

makes a deep clone of the object, using reflection.

Specified by:

copy in interface ObjectCopyStrategy

Parameters:

toCopy - the object you want to copy

Returns:

clone

private static Object clone(Object toCopy,
                            Map objMap,
                            Map metadataMap)

handleObjectWithNoArgsConstructor

private static Object handleObjectWithNoArgsConstructor(Map metadataMap,
                                                        Class objClass,
                                                        Map objMap,
                                                        Object toCopy)

copyClass

private static void copyClass(Map metadataMap,
                              Class c,
                              Object obj,
                              Object retval,
                              Map objMap)

handleArray

private static Object handleArray(Object obj,
                                  Map objMap,
                                  Class objClass,
                                  Map metadataMap)

setFields

private static void setFields(Object from,
                              Object to,
                              Field[] fields,
                              boolean accessible,
                              Map objMap,
                              Map metadataMap)

copy all fields from the "from" object to the "to" object.

Parameters:

from - source object

to - from's clone

fields - fields to be populated

accessible - 'true' if all 'fields' have been made accessible during traversal

cloneAndSetFieldValue

private static void cloneAndSetFieldValue(Field field,
                                          Object src,
                                          Object dest,
                                          Map objMap,
                                          Map metadataMap)
                                   throws IllegalAccessException

Throws:

IllegalAccessException