mirror of
https://github.com/Alfresco/alfresco-community-repo.git
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cefda8c965
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@18931 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
95 lines
2.9 KiB
Java
95 lines
2.9 KiB
Java
/*
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* Copyright (C) 2005-2010 Alfresco Software Limited.
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*
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* This file is part of Alfresco
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*
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* Alfresco is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Alfresco 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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.alfresco.repo.admin.patch;
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import java.util.List;
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import org.alfresco.service.cmr.admin.PatchException;
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/**
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* A patch is an executable class that makes a change to persisted data.
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* <p>
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* Auditing information is not maintained by the patch - rather it is solely
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* responsible for the execution of the processes necessary to apply the patch.
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* <p>
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* Patches must not be reappliable. It is up to the patch management systems
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* to ensure that patches are <b>never reapplied</b>.
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*
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* @see org.alfresco.repo.admin.patch.AbstractPatch
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* @since 1.2
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* @author Derek Hulley
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*/
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public interface Patch
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{
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public String getId();
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public String getDescription();
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/**
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* @return Returns the smallest schema number that this patch may be applied to
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*/
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public int getFixesFromSchema();
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/**
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* @return Returns the largest schema number that this patch may be applied to
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*/
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public int getFixesToSchema();
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/**
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* @return Returns the schema number that this patch attempts to bring the repo up to
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*/
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public int getTargetSchema();
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/**
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* @return Returns <tt>true</tt> if the patch must forcefully run regardless of any other state
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*/
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public boolean isForce();
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/**
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* Get patches that this patch depends on
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*
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* @return Returns a list of patches
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*/
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public List<Patch> getDependsOn();
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/**
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* Get patches that could have done the work already
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*
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* @return Returns a list of patches
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*/
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public List<Patch> getAlternatives();
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/**
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* Check if the patch is applicable to a given schema version.
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*
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* @param version a schema version number
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* @return Returns <code>(fixesFromVersion <= version <= fixesToVersion)</code>
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*/
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public boolean applies(int version);
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/**
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* Applies the patch. Typically this will be within the bounds of a new
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* transaction.
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*
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* @return Returns the patch execution report
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* @throws PatchException if the patch failed to be applied
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*/
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public String apply() throws PatchException;
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}
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