C# (CSharp) NHibernate.Hql.Ast HqlTreeBuilder.IsNull Examples

IsNull() public method

public IsNull ( HqlExpression lhs ) : HqlIsNull
lhs	HqlExpression
return	HqlIsNull

Example #1

File: CommonConceptsNHibernateConfigurationExtension.cs Project: kmeze/Rhetos

 public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject,
     ReadOnlyCollection<Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
 {
     var constantParameter = arguments[1] as ConstantExpression;
     if (constantParameter != null && constantParameter.Value == null)
         return treeBuilder.IsNull(visitor.Visit(arguments[0]).AsExpression());
     else
         return treeBuilder.Equality(
             visitor.Visit(arguments[0]).AsExpression(),
             visitor.Visit(arguments[1]).AsExpression());
 }

Example #2

File: IsNullGenerator.cs Project: hazzik/nh-contrib-everything

 public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection<Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
 {
     var isNull = treeBuilder.IsNull(visitor.Visit(arguments[0]).AsExpression());
     return isNull;
 }