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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.cdm.api.service;
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import java.util.List;
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import java.util.UUID;
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import org.hibernate.criterion.Criterion;
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import org.springframework.security.provisioning.GroupManager;
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import eu.etaxonomy.cdm.model.permission.Group;
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import eu.etaxonomy.cdm.persistence.dao.initializer.IBeanInitializer;
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import eu.etaxonomy.cdm.persistence.query.MatchMode;
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import eu.etaxonomy.cdm.persistence.query.OrderHint;
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/**
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 * Service for {@link Group user groups}
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 *
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 * @author n.hoffmann
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 * @since Mar 9, 2011
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 */
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public interface IGroupService extends IService<Group>, GroupManager{
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    /**
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     * Return a List of groups matching the given query string, optionally filtered by class, optionally with a particular MatchMode
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     *
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     * @param queryString the query string to filter by
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     * @param matchmode use a particular type of matching (can be null - defaults to exact matching)
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     * @param criteria additional criteria to filter by
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     * @param pageSize The maximum number of objects returned (can be null for all objects)
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     * @param pageNumber The offset (in pageSize chunks) from the start of the result set (0 - based)
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     * @param propertyPaths properties to initialize - see {@link IBeanInitializer#initialize(Object, List)}
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     * @param orderHints
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     *            Supports path like <code>orderHints.propertyNames</code> which
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     *            include *-to-one properties like createdBy.username or
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     *            authorTeam.persistentTitleCache
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     * @return a list of instances of type Group matching the queryString
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     *
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     * @see {@link IIdentifiableEntityService#listByTitle(Class, String, MatchMode, List, Integer, Integer, List, List)}
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     */
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    public List<Group> listByName(String queryString, MatchMode matchmode, List<Criterion> criteria, Integer pageSize, Integer pageNumber, List<OrderHint> orderHints, List<String> propertyPaths);
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    public UUID saveGroup(Group group);
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    /**
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     * Checks whether or not a group with the given name exists.
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     * @param username
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     */
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    public boolean groupExists(String groupName);
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    /**
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     * Returns the group with the given group name or <code>null</code> if such a user
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     * does not exist.
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     */
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    public Group findGroup(String groupName);
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}
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