/// <summary>
/// Gets the entity list from respersitory.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="expressions">The criterion expressions,for example:new ICriterion[]{Restriction.Eq("AField","xy")}.</param>
/// <param name="orders">The orders.</param>
/// <returns></returns>
public IList <T> GetList <T>(Hib.Criterion.ICriterion expression, params Hib.Criterion.Order[] orders)
{
try
{
OpenConnect();
Hib.ICriteria criteria = _Session.CreateCriteria(typeof(T));
if (expression != null)
{
criteria.Add(expression);
}
foreach (Hib.Criterion.Order o in orders)
{
criteria.AddOrder(o);
}
return(criteria.List <T>());
}
catch (Exception ex)
{
LogExepttion(ex);
throw;
}
finally
{
Disconnect();
}
}
/// <summary>
/// Gets the entity list from respersitory.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="expressions">The criterion expressions,for example:new ICriterion[]{Restriction.Eq("AField","xy")}.</param>
/// <param name="orders">The orders.</param>
/// <returns></returns>
public IList <T> GetList <T>(Hib.Criterion.ICriterion[] expressions, string associatePath, string alias, params Hib.Criterion.Order[] orders)
{
try
{
OpenConnect();
Hib.ICriteria criteria = _Session.CreateCriteria(typeof(T));
criteria.CreateAlias(associatePath, alias);
if (expressions != null)
{
foreach (Hib.Criterion.ICriterion exp in expressions)
{
criteria.Add(exp);
}
}
foreach (Hib.Criterion.Order o in orders)
{
criteria.AddOrder(o);
}
return(criteria.List <T>());
}
catch (Exception ex)
{
LogExepttion(ex);
throw;
}
finally
{
Disconnect();
}
}
/// <summary>
/// 根据查询条件创建Criteria
/// </summary>
/// <param name="session"></param>
/// <param name="searchExpression"></param>
/// <param name="searchOrders"></param>
/// <param name="hasCollection"></param>
/// <returns></returns>
public static NHibernate.ICriteria CreateCriteria(NHibernate.ISession session, ISearchExpression searchExpression,
IList <ISearchOrder> searchOrders, ref bool hasCollection)
{
hasCollection = false;
int paramCnt = 0;
NHibernate.ICriteria criteria = session.CreateCriteria(typeof(T), "Current");
Dictionary <string, ICriteria> aliases = new Dictionary <string, ICriteria>();
aliases.Add("Current", criteria);
NHibernate.Criterion.ICriterion criterion = GetCriterion(session.SessionFactory, ref criteria, aliases, searchExpression, ref hasCollection, ref paramCnt);
if (criterion != null)
{
criteria.Add(criterion);
}
if (paramCnt > 2100)
{
throw new NotSupportedException("您输入的参数过多，系统最多只支持2100个参数！");
}
if (searchOrders != null)
{
foreach (ISearchOrder so in searchOrders)
{
criteria.AddOrder(GetOrder(ref criteria, aliases, so));
}
}
return(aliases["Current"]);
}
/// <summary>
/// Returns to nhibernate the type of the parameters.
/// I need only one operator.
/// </summary>
/// <param name="criteria"></param>
/// <param name="criteriaQuery"></param>
/// <returns></returns>
public override NHibernate.Engine.TypedValue[] GetTypedValues(
NHibernate.ICriteria criteria,
NHibernate.Criterion.ICriteriaQuery criteriaQuery)
{
return(new TypedValue[] {
new TypedValue(GetITypeFromCLRType(mValueToCompareTo.GetType()), mValueToCompareTo, EntityMode.Poco)
});
}
/// <summary>
/// Returns to nhibernate the type of the parameters.
/// I need only one operator.
/// </summary>
/// <param name="criteria"></param>
/// <param name="criteriaQuery"></param>
/// <returns></returns>
public override NHibernate.Engine.TypedValue[] GetTypedValues(
NHibernate.ICriteria criteria,
NHibernate.Expressions.ICriteriaQuery criteriaQuery)
{
return(new TypedValue[] {
new TypedValue(GetITypeFromCLRType(mValueToCompareTo.GetType()), mValueToCompareTo)
});
}
private System.Collections.IEnumerable GetData(ISearchExpression searchExpression, IList <ISearchOrder> searchOrders, NHibernate.ISession session)
{
NHibernate.ICriteria criteria = CreateCriteria(session, searchExpression, searchOrders, ref m_hasCollection);
OnCriteriaCreated(criteria);
return(criteria.List <T>());
//return criteria.Future<T>();
}
private void GetData(ISearchExpression searchExpression, IList <ISearchOrder> searchOrders,
NHibernate.ISession session, ActionableList <object> actionList)
{
NHibernate.ICriteria criteria = CreateCriteria(session, searchExpression, searchOrders, ref m_hasCollection);
OnCriteriaCreated(criteria);
criteria.List(actionList);
}
public static String GetCritionSql(NHibernate.ICriteria criteria)
{
var criteriaImpl = (CriteriaImpl)criteria;
var sessionImpl = (SessionImpl)criteriaImpl.Session;
var factory = (SessionFactoryImpl)sessionImpl.SessionFactory;
var implementors = factory.GetImplementors(criteriaImpl.EntityOrClassName);
var loader = new CriteriaLoader((IOuterJoinLoadable)factory.GetEntityPersister(implementors[0]), factory, criteriaImpl, implementors[0], sessionImpl.EnabledFilters);
var originalSql = loader.SqlString.ToString();
if (loader.Translator.CollectedParameters.Count > 0)
{
foreach (var param in loader.Translator.CollectedParameters)
{
int paramIndex = originalSql.IndexOf("?");
if (param.Type.GetType().Name == "StringType" ||
param.Type.GetType().Name == "DateTimeType" ||
param.Type.GetType().Name == "DateTime2Type" ||
param.Type.GetType().Name == "GuidType")
{
originalSql = originalSql.Substring(0, paramIndex) + "'" + param.Value + "'" + originalSql.Substring(paramIndex + 1);
}
else
{
originalSql = originalSql.Substring(0, paramIndex) + param.Value + originalSql.Substring(paramIndex + 1);
}
}
}
var fromIndex = 0;
var lastCommaIndex = 0;
while (true)
{
fromIndex = originalSql.IndexOf("from", lastCommaIndex, StringComparison.OrdinalIgnoreCase);
var asIndex = originalSql.IndexOf(" as ", lastCommaIndex, StringComparison.OrdinalIgnoreCase);
if (asIndex < 0 || asIndex > fromIndex)
{
break;
}
else
{
lastCommaIndex = originalSql.IndexOf(",", lastCommaIndex + 1, StringComparison.OrdinalIgnoreCase);
if (lastCommaIndex >= 0 && lastCommaIndex < fromIndex)
{
originalSql = originalSql.Remove(asIndex, lastCommaIndex - asIndex);
lastCommaIndex = asIndex;
}
else
{
originalSql = originalSql.Remove(asIndex + 1, fromIndex - asIndex - 1);
break;
}
}
}
return(originalSql);
}
/// <summary>
/// 读取全部
/// </summary>
/// <returns></returns>
public IList <T> GetAll(int startIndex, int maxRows, string sortedBy)
{
using (var rep = new Repository(this.RepositoryCfgName))
{
rep.BeginTransaction();
NHibernate.ICriteria cri = rep.Session.CreateCriteria(typeof(T));
var ret = GetAll(cri, startIndex, maxRows, sortedBy);
rep.CommitTransaction();
return(ret);
}
}
/// <summary>
/// 获得分页读取的总数量
/// </summary>
/// <param name="cri"></param>
/// <returns></returns>
protected int GetAllCount(NHibernate.ICriteria cri)
{
System.Collections.IList list = cri
.SetProjection(NHibernate.Criterion.Projections.RowCount())
.List();
if (list.Count > 0)
{
return((int)list[0]);
}
else
{
return(0);
}
}
/// <summary>
/// Gets the distict list.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="distictPropertys">The distict propertys.</param>
/// <param name="expressions">The expressions.</param>
/// <param name="orders">The orders.</param>
/// <returns></returns>
public IList <object[]> GetDistinctList <T>(string[] distictPropertys, Hib.Criterion.ICriterion[] expressions, params Hib.Criterion.Order[] orders)
{
try
{
OpenConnect();
Hib.ICriteria criteria = _Session.CreateCriteria(typeof(T));
if (distictPropertys != null)
{
ProjectionList projects = Projections.ProjectionList();
foreach (string p in distictPropertys)
{
projects.Add(Projections.Property(p));
}
criteria.SetProjection(Projections.Distinct(projects));
}
else
{
throw new Exception("the disctinct property can't be null.");
}
if (expressions != null)
{
foreach (Hib.Criterion.ICriterion exp in expressions)
{
criteria.Add(exp);
}
}
foreach (Hib.Criterion.Order o in orders)
{
criteria.AddOrder(o);
}
return(criteria.List <object[]>());
}
catch (Exception ex)
{
LogExepttion(ex);
throw;
}
finally
{
Disconnect();
}
}
/// <summary>
/// Prepare the given Criteria object, applying cache settings and/or
/// a transaction timeout.
/// </summary>
/// <remarks>
/// <para>Note that for NHibernate 1.2 this only works if the
/// implementation is of the type CriteriaImpl, which should generally
/// be the case. The SetFetchSize method is not available on the
/// ICriteria interface
/// </para>
/// <para>This is a no-op for NHibernate 1.0.x since
/// the SetFetchSize method is not on the ICriteria interface and
/// the implementation class is has internal access.
/// </para>
/// <para>To remove the method completely for Spring's NHibernate 1.0
/// support while reusing code for NHibernate 1.2 would not be
/// possible. So now this ineffectual operation is left in tact for
/// NHibernate 1.0.2 support.</para>
/// </remarks>
/// <param name="criteria">The criteria object to prepare</param>
public void PrepareCriteria(ICriteria criteria)
{
if (CacheQueries)
{
criteria.SetCacheable(true);
if (QueryCacheRegion != null)
{
criteria.SetCacheRegion(QueryCacheRegion);
}
}
if (FetchSize > 0)
{
//TODO see if we can optimize performance.
//CriteriaImpl is internal in NH 1.0.x
object[] args = new object[] { FetchSize };
try
{
Type t = TypeResolutionUtils.ResolveType("NHibernate.Impl.CriteriaImpl, NHibernate");
if (t != null)
{
t.InvokeMember("SetFetchSize", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
| BindingFlags.InvokeMethod,
null, criteria, args);
}
}
catch (TypeLoadException e)
{
log.Warn("Can't set FetchSize for ICriteria", e);
}
}
if (MaxResults > 0)
{
criteria.SetMaxResults(MaxResults);
}
SessionFactoryUtils.ApplyTransactionTimeout(criteria, SessionFactory);
}
/// <summary>
/// 分页读取
/// </summary>
/// <param name="cri"></param>
/// <param name="startIndex"></param>
/// <param name="maxRows"></param>
/// <param name="sortedBy"></param>
/// <returns></returns>
protected IList <T> GetAll(NHibernate.ICriteria cri, int startIndex, int maxRows, string sortedBy)
{
cri.SetFirstResult(startIndex);
if (maxRows > 0)
{
cri.SetMaxResults(maxRows);
}
if (!string.IsNullOrEmpty(sortedBy))
{
string[] ss = sortedBy.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
if (ss.Length == 2 && ss[1].ToUpper() == "DESC")
{
cri.AddOrder(new NHibernate.Criterion.Order(ss[0], false));
}
else
{
cri.AddOrder(new NHibernate.Criterion.Order(ss[0], true));
}
}
return(cri.List <T>());
}
/// <summary>
/// This is the real core function that build the fragment of sql needed
/// to build the criteria
/// </summary>
/// <param name="criteria"></param>
/// <param name="criteriaQuery"></param>
/// <param name="context"></param>
/// <returns></returns>
public override NHibernate.SqlCommand.SqlString ToSqlString(
NHibernate.ICriteria criteria,
NHibernate.Expressions.ICriteriaQuery criteriaQuery,
IDictionary <string, IFilter> enabledFilters)
{
//retrieve with projection the real name of the property.
String[] PropertyColumn = criteriaQuery.GetColumnsUsingProjection(
criteria, (String)mSqlFunctionParameter[mPropertyNamePosition]);
NHibernate.Dialect.Dialect dialect = criteriaQuery.Factory.Dialect;
mSqlFunctionParameter[mPropertyNamePosition] = PropertyColumn[0];
if (!dialect.Functions.ContainsKey(mFunction))
{
//throw new ApplicationException("Current dialect does not support " + mFunction + " function");
//Todo for now try to set the function but without the dialect.
return(CreateQueryString(
BuildUnknownExpression(mFunction, mSqlFunctionParameter)));
}
ISQLFunction func = (ISQLFunction)dialect.Functions[mFunction];
String functionResolved = func.Render(mSqlFunctionParameter, criteriaQuery.Factory);
//Now we have the cast operation required.
return(CreateQueryString(functionResolved));
}
public IList <SystemUser> GetByRestrictions(IDictionary <string, string> restrictions, string orderBy, bool ascending, int?limit)
{
using (ISession session = NHibernateHelper.OpenSession())
{
NHibernate.
ICriteria criteria = session.CreateCriteria <SystemUser>();
foreach (KeyValuePair <string, string> pair in restrictions)
{
criteria = criteria.Add(Restrictions.Eq(pair.Key, pair.Value));
}
if (limit != null)
{
criteria = criteria.SetMaxResults((int)limit);
}
if (orderBy != null)
{
criteria = criteria.AddOrder(new Order(orderBy, ascending));
}
return(criteria.List <SystemUser>());
}
}
/// <summary>
///
/// </summary>
/// <param name="criteria"></param>
protected void OnCriteriaCreated(NHibernate.ICriteria criteria)
{
if (this.EagerFetchs != null)
{
foreach (string s in this.EagerFetchs)
{
criteria = criteria.SetFetchMode(s, FetchMode.Eager);
}
}
if (EnablePage)
{
criteria = criteria.SetFirstResult(FirstResult);
if (MaxResult != -1)
{
criteria = criteria.SetMaxResults(MaxResult);
}
}
if (IsResultDistinct || m_hasCollection)
{
criteria = criteria.SetResultTransformer(new NHibernate.Transform.DistinctRootEntityResultTransformer());
}
}
public ICollection <T> FindAll(NHibernate.ICriteria criteria)
{
return(criteria.List <T> ());
}
/// <summary> /// 设置查询条件 /// </summary> public abstract void SetCriteria(NHibernate.ICriteria criteria);
public ICollection <T> FindAll(NHibernate.ICriteria criteria, int firstResult, int numberOfResults)
{
return(criteria.SetFirstResult(firstResult).SetMaxResults(numberOfResults).List <T> ());
}
/// <summary>
/// Prepare the given Criteria object, applying cache settings and/or
/// a transaction timeout.
/// </summary>
/// <remarks>
/// <para>Note that for NHibernate 1.2 this only works if the
/// implementation is of the type CriteriaImpl, which should generally
/// be the case. The SetFetchSize method is not available on the
/// ICriteria interface
/// </para>
/// <para>This is a no-op for NHibernate 1.0.x since
/// the SetFetchSize method is not on the ICriteria interface and
/// the implementation class is has internal access.
/// </para>
/// <para>To remove the method completely for Spring's NHibernate 1.0
/// support while reusing code for NHibernate 1.2 would not be
/// possible. So now this ineffectual operation is left in tact for
/// NHibernate 1.0.2 support.</para>
/// </remarks>
/// <param name="criteria">The criteria object to prepare</param>
public void PrepareCriteria(ICriteria criteria)
{
if (CacheQueries)
{
criteria.SetCacheable(true);
if (QueryCacheRegion != null)
{
criteria.SetCacheRegion(QueryCacheRegion);
}
}
if (FetchSize > 0)
{
//TODO see if we can optimize performance.
//CriteriaImpl is internal in NH 1.0.x
object[] args = new object[] { FetchSize };
try
{
Type t = TypeResolutionUtils.ResolveType("NHibernate.Impl.CriteriaImpl, NHibernate");
if (t != null)
{
t.InvokeMember("SetFetchSize", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance
| BindingFlags.InvokeMethod,
null, criteria, args);
}
}
catch (TypeLoadException e)
{
log.Warn("Can't set FetchSize for ICriteria", e);
}
}
if (MaxResults > 0)
{
criteria.SetMaxResults(MaxResults);
}
SessionFactoryUtils.ApplyTransactionTimeout(criteria, SessionFactory);
}
private int GetCount(ISearchExpression searchExpression, NHibernate.ISession session)
{
NHibernate.ICriteria criteria2 = CreateCriteria(session, searchExpression, null, ref m_hasCollection);
criteria2.SetProjection(NHibernate.Criterion.Projections.RowCount());
return((int)criteria2.UniqueResult()); // criteria2.FutureValue<int>().Value;
}
