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

XMLStore(XMLConfiguration conf)
Constructor; supply configuration.

Method Summary

void	beginTransaction() Begin a datastore transaction.
void	endTransaction(Collection updates, Collection 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 Detail

XMLStore

public XMLStore(XMLConfiguration conf)

Constructor; supply configuration.

Method Detail

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 updates,
                           Collection deletes)

End the datastore transaction.

Parameters:

updates - ObjectData instances to insert or update

deletes - ObjectData instances to delete