org.deegree.metadata.persistence.ebrim.eo
Class EbrimEOMDStoreTransaction

java.lang.Object
  org.deegree.metadata.persistence.ebrim.eo.EbrimEOMDStoreTransaction

All Implemented Interfaces:

MetadataStoreTransaction

public class EbrimEOMDStoreTransaction
extends Object
implements MetadataStoreTransaction

MetadataStoreTransaction implementation for the EbrimEOMDStore.

Version:

$Revision: $, $Date: $

Author:

Lyn Goltz, last edited by: $Author: lyn $

Constructor Summary

EbrimEOMDStoreTransaction(Connection conn, boolean useLegacyPredicates)

Method Summary

void	commit() Makes the changes persistent that have been performed in this transaction and releases the transaction instance so other clients may acquire a transaction on the MetadataStore.
int	performDelete(DeleteOperation operation) Performs the given DeleteOperation.
List<String>	performInsert(InsertOperation insert) Performs the given InsertOperation.
int	performUpdate(UpdateOperation update) Performs the given UpdateOperation.
void	rollback() Aborts the changes that have been performed in this transaction and releases the transaction instance so other clients may acquire a transaction on the MetadataStore.

Methods inherited from class java.lang.Object

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

Constructor Detail

EbrimEOMDStoreTransaction

public EbrimEOMDStoreTransaction(Connection conn,
                                 boolean useLegacyPredicates)

Method Detail

commit

public void commit()
            throws MetadataStoreException

Description copied from interface: MetadataStoreTransaction

Makes the changes persistent that have been performed in this transaction and releases the transaction instance so other clients may acquire a transaction on the MetadataStore.

Specified by:

commit in interface MetadataStoreTransaction

Throws:

MetadataStoreException - if the committing fails

rollback

public void rollback()
              throws MetadataStoreException

Description copied from interface: MetadataStoreTransaction

Aborts the changes that have been performed in this transaction and releases the transaction instance so other clients may acquire a transaction on the MetadataStore.

Specified by:

rollback in interface MetadataStoreTransaction

Throws:

MetadataStoreException - if the rollback fails

performInsert

public List<String> performInsert(InsertOperation insert)
                           throws MetadataStoreException,
                                  MetadataInspectorException

Description copied from interface: MetadataStoreTransaction

Performs the given InsertOperation. TODO for scalabilitiy reasons and simplicitly, consider changing this to #performInsert (MetadataRecord)

Specified by:

performInsert in interface MetadataStoreTransaction

Parameters:

insert - operation to be performed, must not be null

Returns:

identifier of the inserted records, can be empty, but never null

Throws:

MetadataStoreException - if the insertion failed

MetadataInspectorException

performDelete

public int performDelete(DeleteOperation operation)
                  throws MetadataStoreException

Description copied from interface: MetadataStoreTransaction

Performs the given DeleteOperation.

Specified by:

performDelete in interface MetadataStoreTransaction

Parameters:

operation - operation to be performed, must not be null

Returns:

number of deleted records

Throws:

MetadataStoreException - if the deletion failed

performUpdate

public int performUpdate(UpdateOperation update)
                  throws MetadataStoreException,
                         MetadataInspectorException

Description copied from interface: MetadataStoreTransaction

Performs the given UpdateOperation.

Specified by:

performUpdate in interface MetadataStoreTransaction

Parameters:

update - operation to be performed, must not be null

Returns:

number of updated records

Throws:

MetadataStoreException - if the update failed

MetadataInspectorException