Package org.apache.openjpa.xmlstore

Class XMLStore

java.lang.Object

org.apache.openjpa.xmlstore.XMLStore

public class XMLStore
extends Object

Represents a store of object data encoded in XML. This store only allows one datastore transaction to proceed at a time. File I/O errors can put this store into an invalid state.

Constructor Summary

Constructors

Constructor	Description
XMLStore(XMLConfiguration conf)	Constructor; supply configuration.

Method Summary

Modifier and Type	Method	Description
void	beginTransaction()	Begin a datastore transaction.
void	endTransaction(Collection<ObjectData> updates, Collection<ObjectData> deletes)	End the datastore transaction.
ObjectData[]	getData(ClassMetaData meta)	Return all datas for the base class of the given type.
ObjectData	getData(ClassMetaData meta, Object oid)	Return the data for the given oid, or null if it does not exist.

Methods inherited from class java.lang.Object

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

Constructor Details

XMLStore

public XMLStore(XMLConfiguration conf)

Constructor; supply configuration.

Method Details

getData

public ObjectData getData(ClassMetaData meta,
 Object oid)

Return the data for the given oid, or null if it does not exist.

getData

public ObjectData[] getData(ClassMetaData meta)

Return all datas for the base class of the given type.

beginTransaction

public void beginTransaction()

Begin a datastore transaction. Obtains an exclusive write lock on the store.

endTransaction

public void endTransaction(Collection<ObjectData> updates,
 Collection<ObjectData> deletes)

End the datastore transaction.

Parameters:

updates - ObjectData instances to insert or update

deletes - ObjectData instances to delete