org.nakedobjects.plugins.xml.objectstore.internal.data.xml
Class XmlDataManager

java.lang.Object
  org.nakedobjects.plugins.xml.objectstore.internal.data.xml.XmlDataManager

All Implemented Interfaces:

DataManager

public class XmlDataManager
extends java.lang.Object
implements DataManager

Constructor Summary

XmlDataManager(XmlFile xmlFile)

Method Summary

java.lang.String	getDebugData()
ObjectDataVector	getInstances(ObjectData pattern) Return data for all instances that match the pattern.
void	insertObject(ObjectData data) Save the data for an object and adds the reference to a list of instances
boolean	isFixturesInstalled()
Data	loadData(SerialOid oid)
protected boolean	matchesPattern(ObjectData patternData, ObjectData candidateData) A helper that determines if two sets of data match.
protected long	nextId() Read in the next unique number for the object identifier.
int	numberOfInstances(ObjectData pattern) Return the number of instances that match the specified data
void	remove(SerialOid oid)
void	save(Data data) Save the data for latter retrieval.
void	shutdown()

Methods inherited from class java.lang.Object

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

Constructor Detail

XmlDataManager

public XmlDataManager(XmlFile xmlFile)

Method Detail

shutdown

public void shutdown()

Specified by:

shutdown in interface DataManager

isFixturesInstalled

public boolean isFixturesInstalled()

Specified by:

isFixturesInstalled in interface DataManager

loadData

public Data loadData(SerialOid oid)

Specified by:

loadData in interface DataManager

getInstances

public ObjectDataVector getInstances(ObjectData pattern)

Description copied from interface: DataManager

Return data for all instances that match the pattern.

Specified by:

getInstances in interface DataManager

numberOfInstances

public int numberOfInstances(ObjectData pattern)

Description copied from interface: DataManager

Return the number of instances that match the specified data

Specified by:

numberOfInstances in interface DataManager

matchesPattern

protected boolean matchesPattern(ObjectData patternData,
                                 ObjectData candidateData)

A helper that determines if two sets of data match. A match occurs when the types are the same and any field in the pattern also occurs in the data set under test.

nextId

protected long nextId()
               throws PersistorException

Read in the next unique number for the object identifier.

Throws:

PersistorException

insertObject

public final void insertObject(ObjectData data)

Save the data for an object and adds the reference to a list of instances

Specified by:

insertObject in interface DataManager

remove

public final void remove(SerialOid oid)
                  throws ObjectNotFoundException,
                         ObjectPersistenceException

Specified by:

remove in interface DataManager

Throws:

ObjectNotFoundException

ObjectPersistenceException

save

public final void save(Data data)

Save the data for latter retrieval.

Specified by:

save in interface DataManager

getDebugData

public java.lang.String getDebugData()

Specified by:

getDebugData in interface DataManager