public static string GetHqlExpression(Expression linqExpression, ParameterAggregator parameterAggregator)
{
var visitor = new HqlGeneratorExpressionTreeVisitor(parameterAggregator);
visitor.VisitExpression(linqExpression);
return(visitor.GetHqlExpression());
}
public static string GetHqlExpression(Expression linqExpression, ParameterAggregator parameterAggregator)
{
// 传递需要保存解析参数的容器
var visitor = new HqlGeneratorExpressionTreeVisitor(parameterAggregator);
// 执行 Visitor
visitor.Visit(linqExpression);
// 扩展方法
// 通过 Visitor 过程中保存的临时变量，将其转换成 Hql
return(visitor.GetHqlExpression());
}
private HqlGeneratorExpressionTreeVisitor(ParameterAggregator parameterAggregator)
{
_parameterAggregator = parameterAggregator;
}
