com.solarmetric.kodo.util
Class ProxyProperties

java.lang.Object
  |
  +--java.util.Dictionary
        |
        +--java.util.Hashtable
              |
              +--java.util.Properties
                    |
                    +--com.solarmetric.kodo.util.ProxyProperties

All Implemented Interfaces:

Cloneable, Map, Proxy, ProxyMap, Serializable

public class ProxyProperties

extends Properties

implements ProxyMap

Extension of the Properties type that dirties the persistent/transactional field it is assigned to on modification. The need to dirty the field on any modification mandates that this class must override all mutator methods of the base type. This may lead to multiple calls to the PersistenceCapable.jdoMakeDirty(java.lang.String) for one state change if one mutator method of the base type calls another.

There is no change tracking logic in properties because it is difficult to determine what to do when Properties.load(java.io.InputStream) is called; some implementations might not delegate to the Map.put(java.lang.Object, java.lang.Object) or Properties.setProperty(java.lang.String, java.lang.String) methods when loading.

See Also:

Serialized Form

Inner classes inherited from class java.util.Map

Map.Entry

Fields inherited from class java.util.Properties

defaults

Constructor Summary

ProxyProperties()
Template constructor.

ProxyProperties(Class keyType, Class valueType)
Constructor.

Method Summary

void	clear()
Set	entrySet()
Comparator	getComparator() Return the comparator used in this map, or null if it is unordered or uses natural ordering.
Map	getCopy(Map orig) This method should return a copy of the given map; the copy should be of the same class as the superclass of this collection.
Object	getOwner() Return the owning object.
String	getOwnerFieldName() Return the owning field name.
Set	keySet()
void	load(InputStream in)
ProxyMap	newInstance(Class keyType, Class valueType, Map contents, Comparator compare) This method should return a new proxy of the same concrete type as the implementing class.
Object	put(Object key, Object value)
void	putAll(Map m)
Object	remove(Object key)
void	setOwner(Object pc, String fieldName) Set the owning JDO instance of the proxy and the name of the field it is assigned to.
Object	setProperty(String key, String value)
Collection	values()
protected Object	writeReplace()

Methods inherited from class java.util.Properties

getProperty, getProperty, list, list, propertyNames, save, store

Methods inherited from class java.util.Hashtable

clone, contains, containsKey, containsValue, elements, equals, get, hashCode, isEmpty, keys, rehash, size, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

containsKey, containsValue, equals, get, hashCode, isEmpty, size

Constructor Detail

ProxyProperties

public ProxyProperties()

Template constructor.

ProxyProperties

public ProxyProperties(Class keyType,
                       Class valueType)

Constructor.

Parameters:

keyType - All keys in this map must be instances of this type.

valueType - All values in this map must be instances of this type.

Method Detail

newInstance

public ProxyMap newInstance(Class keyType,
                            Class valueType,
                            Map contents,
                            Comparator compare)

Description copied from interface: ProxyMap

This method should return a new proxy of the same concrete type as the implementing class. Used by the ProxyManager factories: one template instance of each type is created for the purpose of producing new instances via this method. Overcomes the performance penalties of reflection.

Specified by:

newInstance in interface ProxyMap

getCopy

public Map getCopy(Map orig)

Description copied from interface: ProxyMap

This method should return a copy of the given map; the copy should be of the same class as the superclass of this collection.

Specified by:

getCopy in interface ProxyMap

getComparator

public Comparator getComparator()

Description copied from interface: ProxyMap

Return the comparator used in this map, or null if it is unordered or uses natural ordering.

Specified by:

getComparator in interface ProxyMap

setOwner

public void setOwner(Object pc,
                     String fieldName)

Description copied from interface: Proxy

Set the owning JDO instance of the proxy and the name of the field it is assigned to. Set to null to indicate that the proxy is no longer managed.

Specified by:

setOwner in interface Proxy

getOwner

public Object getOwner()

Description copied from interface: Proxy

Return the owning object.

Specified by:

getOwner in interface Proxy

getOwnerFieldName

public String getOwnerFieldName()

Description copied from interface: Proxy

Return the owning field name.

Specified by:

getOwnerFieldName in interface Proxy

clear

public void clear()

Specified by:

clear in interface Map

Overrides:

clear in class Hashtable

keySet

public Set keySet()

Specified by:

keySet in interface Map

Overrides:

keySet in class Hashtable

values

public Collection values()

Specified by:

values in interface Map

Overrides:

values in class Hashtable

entrySet

public Set entrySet()

Specified by:

entrySet in interface Map

Overrides:

entrySet in class Hashtable

put

public Object put(Object key,
                  Object value)

Specified by:

put in interface Map

Overrides:

put in class Hashtable

putAll

public void putAll(Map m)

Specified by:

putAll in interface Map

Overrides:

putAll in class Hashtable

remove

public Object remove(Object key)

Specified by:

remove in interface Map

Overrides:

remove in class Hashtable

setProperty

public Object setProperty(String key,
                          String value)

Overrides:

setProperty in class Properties

load

public void load(InputStream in)
          throws IOException

Overrides:

load in class Properties

writeReplace

protected Object writeReplace()
                       throws ObjectStreamException