private void createAssociationPathCriteriaMap() {
	final Iterator<CriteriaImpl.Subcriteria> iter = rootCriteria.iterateSubcriteria();
	while ( iter.hasNext() ) {
		CriteriaImpl.Subcriteria crit = iter.next();
		String wholeAssociationPath = getWholeAssociationPath( crit );
		Object old = associationPathCriteriaMap.put( wholeAssociationPath, crit );
		if ( old != null ) {
			throw new QueryException( "duplicate association path: " + wholeAssociationPath );
		}
		JoinType joinType = crit.getJoinType();
		old = associationPathJoinTypesMap.put( wholeAssociationPath, joinType );
		if ( old != null ) {
			// TODO : not so sure this is needed...
			throw new QueryException( "duplicate association path: " + wholeAssociationPath );
		}
		if ( crit.getWithClause() != null ) {
			this.withClauseMap.put( wholeAssociationPath, crit.getWithClause() );
		}
	}
}
 

@Override
public Object clone() {
    final CriteriaImpl impl = (CriteriaImpl) criteria;
    final HibernateSession hibernateSession = (HibernateSession) getSession();
    final GrailsHibernateTemplate hibernateTemplate = (GrailsHibernateTemplate) hibernateSession.getNativeInterface();
    return hibernateTemplate.execute((GrailsHibernateTemplate.HibernateCallback<Object>) session -> {
        Criteria newCriteria = session.createCriteria(impl.getEntityOrClassName());

        Iterator iterator = impl.iterateExpressionEntries();
        while (iterator.hasNext()) {
            CriteriaImpl.CriterionEntry entry = (CriteriaImpl.CriterionEntry) iterator.next();
            newCriteria.add(entry.getCriterion());
        }
        Iterator subcriteriaIterator = impl.iterateSubcriteria();
        while (subcriteriaIterator.hasNext()) {
            CriteriaImpl.Subcriteria sub = (CriteriaImpl.Subcriteria) subcriteriaIterator.next();
            newCriteria.createAlias(sub.getPath(), sub.getAlias(), sub.getJoinType(), sub.getWithClause());
        }
        return new HibernateQuery(newCriteria, hibernateSession, entity);
    });
}
 

private SharedSessionContractImplementor deriveRootSession(Criteria criteria) {
	if ( criteria instanceof CriteriaImpl ) {
		return ( (CriteriaImpl) criteria ).getSession();
	}
	else if ( criteria instanceof CriteriaImpl.Subcriteria ) {
		return deriveRootSession( ( (CriteriaImpl.Subcriteria) criteria ).getParent() );
	}
	else {
		// could happen for custom Criteria impls.  Not likely, but...
		// 		for long term solution, see HHH-3514
		return null;
	}
}
 

public CriteriaJoinWalker(
		final OuterJoinLoadable persister,
		final CriteriaQueryTranslator translator,
		final SessionFactoryImplementor factory,
		final CriteriaImpl criteria,
		final String rootEntityName,
		final LoadQueryInfluencers loadQueryInfluencers) {
	this( persister, translator, factory, criteria, rootEntityName, loadQueryInfluencers, null );
}
 

public CriteriaJoinWalker(
		final OuterJoinLoadable persister,
		final CriteriaQueryTranslator translator,
		final SessionFactoryImplementor factory,
		final CriteriaImpl criteria,
		final String rootEntityName,
		final LoadQueryInfluencers loadQueryInfluencers,
		final String alias) {
	super( persister, factory, loadQueryInfluencers, alias );

	this.translator = translator;

	querySpaces = translator.getQuerySpaces();

	if ( translator.hasProjection() ) {
		initProjection(
				translator.getSelect(),
				translator.getWhereCondition(),
				translator.getOrderBy(),
				translator.getGroupBy(),
				LockOptions.NONE
		);
		resultTypes = translator.getProjectedTypes();
		userAliases = translator.getProjectedAliases();
		includeInResultRow = new boolean[resultTypes.length];
		Arrays.fill( includeInResultRow, true );
	}
	else {
		initAll( translator.getWhereCondition(), translator.getOrderBy(), LockOptions.NONE );
		// root entity comes last
		userAliasList.add( criteria.getAlias() ); //root entity comes *last*
		resultTypeList.add( translator.getResultType( criteria ) );
		includeInResultRowList.add( true );
		userAliases = ArrayHelper.toStringArray( userAliasList );
		resultTypes = ArrayHelper.toTypeArray( resultTypeList );
		includeInResultRow = ArrayHelper.toBooleanArray( includeInResultRowList );
	}
}
 

public CriteriaLoader(
		final OuterJoinLoadable persister,
		final SessionFactoryImplementor factory,
		final CriteriaImpl criteria,
		final String rootEntityName,
		final LoadQueryInfluencers loadQueryInfluencers) throws HibernateException {
	super( factory, loadQueryInfluencers );

	translator = new CriteriaQueryTranslator(
			factory,
			criteria,
			rootEntityName,
			CriteriaQueryTranslator.ROOT_SQL_ALIAS
		);

	querySpaces = translator.getQuerySpaces();

	CriteriaJoinWalker walker = new CriteriaJoinWalker(
			persister,
			translator,
			factory,
			criteria,
			rootEntityName,
			loadQueryInfluencers
		);

	initFromWalker(walker);

	userAliases = walker.getUserAliases();
	resultTypes = walker.getResultTypes();
	includeInResultRow = walker.includeInResultRow();
	resultRowLength = ArrayHelper.countTrue( includeInResultRow );

	postInstantiate();

}
 

public CriteriaQueryTranslator(
		final SessionFactoryImplementor factory,
		final CriteriaImpl criteria,
		final String rootEntityName,
		final String rootSQLAlias,
		CriteriaQuery outerQuery) throws HibernateException {
	this( factory, criteria, rootEntityName, rootSQLAlias );
	outerQueryTranslator = outerQuery;
}
 

public CriteriaQueryTranslator(
		final SessionFactoryImplementor factory,
		final CriteriaImpl criteria,
		final String rootEntityName,
		final String rootSQLAlias) throws HibernateException {
	this.rootCriteria = criteria;
	this.rootEntityName = rootEntityName;
	this.sessionFactory = factory;
	this.rootSQLAlias = rootSQLAlias;
	this.helper = new SessionFactoryHelper(factory);
	createAliasCriteriaMap();
	createAssociationPathCriteriaMap();
	createCriteriaEntityNameMap();
	createCriteriaSQLAliasMap();
}
 

private void createAliasCriteriaMap() {
	aliasCriteriaMap.put( rootCriteria.getAlias(), rootCriteria );
	Iterator<CriteriaImpl.Subcriteria> iter = rootCriteria.iterateSubcriteria();
	while ( iter.hasNext() ) {
		Criteria subcriteria = iter.next();
		if ( subcriteria.getAlias() != null ) {
			Object old = aliasCriteriaMap.put( subcriteria.getAlias(), subcriteria );
			if ( old != null ) {
				throw new QueryException( "duplicate alias: " + subcriteria.getAlias() );
			}
		}
	}
}
 

private String getWholeAssociationPath(CriteriaImpl.Subcriteria subcriteria) {
	String path = subcriteria.getPath();

	// some messy, complex stuff here, since createCriteria() can take an
	// aliased path, or a path rooted at the creating criteria instance
	Criteria parent = null;
	if ( path.indexOf( '.' ) > 0 ) {
		// if it is a compound path
		String testAlias = StringHelper.root( path );
		if ( !testAlias.equals( subcriteria.getAlias() ) ) {
			// and the qualifier is not the alias of this criteria
			// -> check to see if we belong to some criteria other
			//  than the one that created us
			parent = aliasCriteriaMap.get( testAlias );
		}
	}
	if ( parent == null ) {
		// otherwise assume the parent is the the criteria that created us
		parent = subcriteria.getParent();
	}
	else {
		path = StringHelper.unroot( path );
	}

	if ( parent.equals( rootCriteria ) ) {
		// if its the root criteria, we are done
		return path;
	}
	else {
		// otherwise, recurse
		return getWholeAssociationPath( ( CriteriaImpl.Subcriteria ) parent ) + '.' + path;
	}
}
 

public String getWhereCondition() {
	StringBuilder condition = new StringBuilder( 30 );
	Iterator<CriteriaImpl.CriterionEntry> criterionIterator = rootCriteria.iterateExpressionEntries();
	while ( criterionIterator.hasNext() ) {
		CriteriaImpl.CriterionEntry entry = criterionIterator.next();
		String sqlString = entry.getCriterion().toSqlString( entry.getCriteria(), this );
		condition.append( sqlString );
		if ( criterionIterator.hasNext() ) {
			condition.append( " and " );
		}
	}
	return condition.toString();
}
 

public String getOrderBy() {
	StringBuilder orderBy = new StringBuilder( 30 );
	Iterator<CriteriaImpl.OrderEntry> criterionIterator = rootCriteria.iterateOrderings();
	while ( criterionIterator.hasNext() ) {
		CriteriaImpl.OrderEntry oe = criterionIterator.next();
		orderBy.append( oe.getOrder().toSqlString( oe.getCriteria(), this ) );
		if ( criterionIterator.hasNext() ) {
			orderBy.append( ", " );
		}
	}
	return orderBy.toString();
}
 

@Override
public int getTotalCount() {
    if (totalCount == Integer.MIN_VALUE) {
        totalCount = hibernateTemplate.execute(new GrailsHibernateTemplate.HibernateCallback<Integer>() {
            public Integer doInHibernate(Session session) throws HibernateException, SQLException {
                CriteriaImpl impl = (CriteriaImpl) criteria;
                Criteria totalCriteria = session.createCriteria(impl.getEntityOrClassName());
                hibernateTemplate.applySettings(totalCriteria);

                Iterator iterator = impl.iterateExpressionEntries();
                while (iterator.hasNext()) {
                    CriteriaImpl.CriterionEntry entry = (CriteriaImpl.CriterionEntry) iterator.next();
                    totalCriteria.add(entry.getCriterion());
                }
                Iterator subcriteriaIterator = impl.iterateSubcriteria();
                while (subcriteriaIterator.hasNext()) {
                    CriteriaImpl.Subcriteria sub = (CriteriaImpl.Subcriteria) subcriteriaIterator.next();
                    totalCriteria.createAlias(sub.getPath(), sub.getAlias(), sub.getJoinType(), sub.getWithClause());
                }
                totalCriteria.setProjection(impl.getProjection());
                totalCriteria.setProjection(Projections.rowCount());
                return ((Number)totalCriteria.uniqueResult()).intValue();
            }
        });
    }
    return totalCount;
}
 

/**
 * 获取分页记录CriteriaQuery 老方法final int allCounts =
 * oConvertUtils.getInt(criteria
 * .setProjection(Projections.rowCount()).uniqueResult(), 0);
 * 
 * @param cq
 * @param isOffset
 * @return
 */
public PageList getPageList(final CriteriaQuery cq, final boolean isOffset) {

	Criteria criteria = cq.getDetachedCriteria().getExecutableCriteria(
			getSession());
	CriteriaImpl impl = (CriteriaImpl) criteria;
	// 先把Projection和OrderBy条件取出来,清空两者来执行Count操作
	Projection projection = impl.getProjection();
	final int allCounts = ((Long) criteria.setProjection(
			Projections.rowCount()).uniqueResult()).intValue();
	criteria.setProjection(projection);
	if (projection == null) {
		criteria.setResultTransformer(CriteriaSpecification.ROOT_ENTITY);
	}

	// 判断是否有排序字段
	if (cq.getOrdermap() != null) {
		cq.setOrder(cq.getOrdermap());
	}
	int pageSize = cq.getPageSize();// 每页显示数
	int curPageNO = PagerUtil.getcurPageNo(allCounts, cq.getCurPage(),
			pageSize);// 当前页
	int offset = PagerUtil.getOffset(allCounts, curPageNO, pageSize);
	String toolBar = "";
	if (isOffset) {// 是否分页
		criteria.setFirstResult(offset);
		criteria.setMaxResults(cq.getPageSize());
		if (cq.getIsUseimage() == 1) {
			toolBar = PagerUtil.getBar(cq.getMyAction(), cq.getMyForm(),
					allCounts, curPageNO, pageSize, cq.getMap());
		} else {
			toolBar = PagerUtil.getBar(cq.getMyAction(), allCounts,
					curPageNO, pageSize, cq.getMap());
		}
	} else {
		pageSize = allCounts;
	}
	return new PageList(criteria.list(), toolBar, offset, curPageNO,
			allCounts);
}
 

/**
 * 返回JQUERY datatables DataTableReturn模型对象
 */
public DataTableReturn getDataTableReturn(final CriteriaQuery cq,
		final boolean isOffset) {

	Criteria criteria = cq.getDetachedCriteria().getExecutableCriteria(
			getSession());
	CriteriaImpl impl = (CriteriaImpl) criteria;
	// 先把Projection和OrderBy条件取出来,清空两者来执行Count操作
	Projection projection = impl.getProjection();
	final int allCounts = ((Long) criteria.setProjection(
			Projections.rowCount()).uniqueResult()).intValue();
	criteria.setProjection(projection);
	if (projection == null) {
		criteria.setResultTransformer(CriteriaSpecification.ROOT_ENTITY);
	}

	// 判断是否有排序字段
	if (cq.getOrdermap() != null) {
		cq.setOrder(cq.getOrdermap());
	}
	int pageSize = cq.getPageSize();// 每页显示数
	int curPageNO = PagerUtil.getcurPageNo(allCounts, cq.getCurPage(),
			pageSize);// 当前页
	int offset = PagerUtil.getOffset(allCounts, curPageNO, pageSize);
	if (isOffset) {// 是否分页
		criteria.setFirstResult(offset);
		criteria.setMaxResults(cq.getPageSize());
	} else {
		pageSize = allCounts;
	}
	DetachedCriteriaUtil.selectColumn(cq.getDetachedCriteria(), cq
			.getField().split(","), cq.getEntityClass(), false);
	return new DataTableReturn(allCounts, allCounts, cq.getDataTables()
			.getEcho(), criteria.list());
}
 

/**
 * 返回easyui datagrid DataGridReturn模型对象
 */
public DataGridReturn getDataGridReturn(final CriteriaQuery cq,
		final boolean isOffset) {
	Criteria criteria = cq.getDetachedCriteria().getExecutableCriteria(
			getSession());
	CriteriaImpl impl = (CriteriaImpl) criteria;
	// 先把Projection和OrderBy条件取出来,清空两者来执行Count操作
	Projection projection = impl.getProjection();
	final int allCounts = ((Long) criteria.setProjection(
			Projections.rowCount()).uniqueResult()).intValue();
	criteria.setProjection(projection);
	if (projection == null) {
		criteria.setResultTransformer(CriteriaSpecification.ROOT_ENTITY);
	}
	if (StringUtils.isNotBlank(cq.getDataGrid().getSort())) {
		cq.addOrder(cq.getDataGrid().getSort(), cq.getDataGrid().getOrder());
	}

	// 判断是否有排序字段
	if (!cq.getOrdermap().isEmpty()) {
		cq.setOrder(cq.getOrdermap());
	}
	int pageSize = cq.getPageSize();// 每页显示数
	int curPageNO = PagerUtil.getcurPageNo(allCounts, cq.getCurPage(),
			pageSize);// 当前页
	int offset = PagerUtil.getOffset(allCounts, curPageNO, pageSize);
	if (isOffset) {// 是否分页
		criteria.setFirstResult(offset);
		criteria.setMaxResults(cq.getPageSize());
	} else {
		pageSize = allCounts;
	}
	// DetachedCriteriaUtil.selectColumn(cq.getDetachedCriteria(),
	// cq.getField().split(","), cq.getClass1(), false);
	List list = criteria.list();
	cq.getDataGrid().setResults(list);
	cq.getDataGrid().setTotal(allCounts);
	return new DataGridReturn(allCounts, list);
}
 

/**
 * Description: <br>
 * 
 * @author 王伟<br>
 * @taskId <br>
 * @param detachedCriteria
 * @param pi
 * @param pageSize
 * @param <T> T
 * @return T
 * @throws DaoException <br>
 */
@Override
public <T> PagerList<T> getPageList(final DetachedCriteria detachedCriteria, final int pi, final int pageSize)
    throws DaoException {
    int pageIndex = pi;
    if (pi == 0) {
        pageIndex = 1;
    }

    Criteria criteria = detachedCriteria.getExecutableCriteria(getSession());

    // 查询分页总数
    CriteriaImpl impl = (CriteriaImpl) criteria;
    Projection projection = impl.getProjection();
    Long allCounts = (Long) criteria.setProjection(Projections.rowCount()).uniqueResult();

    criteria.setProjection(projection);
    criteria.setFirstResult((pageIndex - 1) * pageSize);
    criteria.setMaxResults(pageSize);

    PagerList<T> resultList = new PagerList<T>();
    resultList.setPageIndex(pageIndex);
    resultList.setPageSize(pageSize);
    if (allCounts == null) {
        allCounts = 0L;
    }
    resultList.setTotalCount(allCounts);

    if (allCounts > 0) {
        resultList.addAll(criteria.list());
    }
    return resultList;
}
 

/**
 * find projection from criteria.
 * 
 * @param criteria
 *            Criteria
 * @return Projection
 */
public static Projection findProjection(Criteria criteria) {
    if (criteria instanceof CriteriaImpl) {
        return ((CriteriaImpl) criteria).getProjection();
    } else {
        throw new IllegalArgumentException(criteria
                + " is not a CriteriaImpl");
    }
}
 

/**
 * 分页查询函数，使用已设好查询条件与排序的<code>Criteria</code>.
 * 
 * @param criteria
 *            条件
 * @param pageNo
 *            当前页号
 * @param pageSize
 *            每页最大记录数
 * @return 含总记录数和当前页数据的Page对象.
 */
@Transactional(readOnly = true)
public Page pagedQuery(Criteria criteria, int pageNo, int pageSize) {
    Assert.notNull(criteria);
    Assert.isTrue(pageNo >= 1, "pageNo should be eg 1");
    Assert.isTrue(criteria instanceof CriteriaImpl);

    // 先把Projection和OrderBy条件取出来,清空两者来执行Count操作
    Projection projection = HibernateUtils.findProjection(criteria);

    List orderEntries = HibernateUtils.findOrderEntries(criteria);
    HibernateUtils.setOrderEntries(criteria, Collections.EMPTY_LIST);

    // 执行查询
    Integer totalCount = this.getCount(criteria);
    // 将之前的Projection和OrderBy条件重新设回去
    criteria.setProjection(projection);

    if (projection == null) {
        criteria.setResultTransformer(CriteriaSpecification.ROOT_ENTITY);
    }

    HibernateUtils.setOrderEntries(criteria, orderEntries);

    // 返回分页对象
    if (totalCount < 1) {
        return new Page();
    }

    int start = (pageNo - 1) * pageSize;
    List result = criteria.setFirstResult(start).setMaxResults(pageSize)
            .list();

    Page page = new Page(result, totalCount);
    page.setPageNo(pageNo);
    page.setPageSize(pageSize);

    return page;
}
 

/**
 * 获取分页记录CriteriaQuery 老方法final int allCounts =
 * oConvertUtils.getInt(criteria
 * .setProjection(Projections.rowCount()).uniqueResult(), 0);
 *
 * @param cq
 * @param isOffset
 * @return
 */
public PageList getPageList(final CriteriaQuery cq, final boolean isOffset) {

	Criteria criteria = cq.getDetachedCriteria().getExecutableCriteria(
			getSession());
	CriteriaImpl impl = (CriteriaImpl) criteria;
	// 先把Projection和OrderBy条件取出来,清空两者来执行Count操作
	Projection projection = impl.getProjection();
	final int allCounts = ((Long) criteria.setProjection(
			Projections.rowCount()).uniqueResult()).intValue();
	criteria.setProjection(projection);
	if (projection == null) {
		criteria.setResultTransformer(CriteriaSpecification.ROOT_ENTITY);
	}

	// 判断是否有排序字段
	if (cq.getOrdermap() != null) {
		cq.setOrder(cq.getOrdermap());
	}
	int pageSize = cq.getPageSize();// 每页显示数
	int curPageNO = PagerUtil.getcurPageNo(allCounts, cq.getCurPage(),
			pageSize);// 当前页
	int offset = PagerUtil.getOffset(allCounts, curPageNO, pageSize);
	String toolBar = "";
	if (isOffset) {// 是否分页
		criteria.setFirstResult(offset);
		criteria.setMaxResults(cq.getPageSize());
		if (cq.getIsUseimage() == 1) {
			toolBar = PagerUtil.getBar(cq.getMyAction(), cq.getMyForm(),
					allCounts, curPageNO, pageSize, cq.getMap());
		} else {
			toolBar = PagerUtil.getBar(cq.getMyAction(), allCounts,
					curPageNO, pageSize, cq.getMap());
		}
	} else {
		pageSize = allCounts;
	}
	return new PageList(criteria.list(), toolBar, offset, curPageNO,
			allCounts);
}
 

/**
 * 返回JQUERY datatables DataTableReturn模型对象
 */
public DataTableReturn getDataTableReturn(final CriteriaQuery cq,
		final boolean isOffset) {

	Criteria criteria = cq.getDetachedCriteria().getExecutableCriteria(
			getSession());
	CriteriaImpl impl = (CriteriaImpl) criteria;
	// 先把Projection和OrderBy条件取出来,清空两者来执行Count操作
	Projection projection = impl.getProjection();
	final int allCounts = ((Long) criteria.setProjection(
			Projections.rowCount()).uniqueResult()).intValue();
	criteria.setProjection(projection);
	if (projection == null) {
		criteria.setResultTransformer(CriteriaSpecification.ROOT_ENTITY);
	}

	// 判断是否有排序字段
	if (cq.getOrdermap() != null) {
		cq.setOrder(cq.getOrdermap());
	}
	int pageSize = cq.getPageSize();// 每页显示数
	int curPageNO = PagerUtil.getcurPageNo(allCounts, cq.getCurPage(),
			pageSize);// 当前页
	int offset = PagerUtil.getOffset(allCounts, curPageNO, pageSize);
	if (isOffset) {// 是否分页
		criteria.setFirstResult(offset);
		criteria.setMaxResults(cq.getPageSize());
	} else {
		pageSize = allCounts;
	}

	//DetachedCriteriaUtil.selectColumn(cq.getDetachedCriteria(), cq.getField().split(","), cq.getEntityClass(), false);

	
	return new DataTableReturn(allCounts, allCounts, cq.getDataTables().getEcho(), criteria.list());
}
 

protected EntityCriteria(String entityName) {
	impl = new CriteriaImpl(entityName, null);
	criteria = impl;
}
 

protected EntityCriteria(String entityName, String alias) {
	impl = new CriteriaImpl(entityName, alias, null);
	criteria = impl;
}
 

protected EntityCriteria(CriteriaImpl impl, Criteria criteria) {
	this.impl = impl;
	this.criteria = criteria;
}
 

/**
 * Get an executable instance of <literal>Criteria</literal>,
 * to actually run the query.
 */
public Criteria getExecutableCriteria(Session session) {
	CriteriaImpl clone = (CriteriaImpl) SerializationUtils.clone(impl);
	clone.setSession( ( SessionImplementor ) session );
	return clone;
}
 

CriteriaImpl getCriteriaImpl() {
	return impl;
}
 

protected DetachedCriteria(String entityName) {
	impl = new CriteriaImpl( entityName, null );
	criteria = impl;
}
 

protected DetachedCriteria(String entityName, String alias) {
	impl = new CriteriaImpl( entityName, alias, null );
	criteria = impl;
}
 

protected DetachedCriteria(CriteriaImpl impl, Criteria criteria) {
	this.impl = impl;
	this.criteria = criteria;
}
 

public CriteriaImpl getRootCriteria() {
	return rootCriteria;
}