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https://github.com/Alfresco/alfresco-community-repo.git
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31c250682b
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@5081 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
59 lines
2.1 KiB
Java
59 lines
2.1 KiB
Java
/*
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* Copyright (C) 2005 Alfresco, Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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package org.alfresco.repo.domain.hibernate;
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import org.alfresco.repo.domain.DbAccessControlEntry;
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import org.hibernate.Query;
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import org.hibernate.ScrollMode;
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import org.hibernate.ScrollableResults;
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import org.hibernate.Session;
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/**
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* Helper methods related to Hibernate
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*
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* @author Derek Hulley
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*/
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public class HibernateHelper
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{
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/**
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* Helper method to scroll through the results of a query and delete all the
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* resulting access control entries, performing batch flushes.
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*
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* @param session the session to use for the deletions
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* @param query the query with all parameters set and that will return
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* {@link org.alfresco.repo.domain.DbAccessControlEntry access control entry} instances
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* @return Returns the number of entries deleted
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*/
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public static int deleteDbAccessControlEntries(Session session, Query query)
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{
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ScrollableResults entities = query.scroll(ScrollMode.FORWARD_ONLY);
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int count = 0;
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while (entities.next())
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{
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DbAccessControlEntry entry = (DbAccessControlEntry) entities.get(0);
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entry.delete();
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if (++count % 50 == 0)
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{
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session.flush();
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session.clear();
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}
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}
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return count;
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}
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}
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