| public Like ( HqlExpression lhs, HqlExpression rhs ) : HqlLike | ||
| lhs | HqlExpression | |
| rhs | HqlExpression | |
| return | HqlLike | |
public HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection<Expression> arguments,
HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
return treeBuilder.Like(
visitor.Visit(arguments[0]).AsExpression(),
visitor.Visit(arguments[1]).AsExpression());
}
public override HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection<Expression> arguments, HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
return treeBuilder.Like(
visitor.Visit(targetObject).AsExpression(),
treeBuilder.Concat(
treeBuilder.Constant("%"),
visitor.Visit(arguments[0]).AsExpression()));
}
public HqlTreeNode BuildHql(MethodInfo method, Expression targetObject, ReadOnlyCollection<Expression> arguments,
HqlTreeBuilder treeBuilder, IHqlExpressionVisitor visitor)
{
if (arguments.Count == 2)
{
return treeBuilder.Like(
visitor.Visit(arguments[0]).AsExpression(),
visitor.Visit(arguments[1]).AsExpression());
}
if (arguments[2].NodeType == ExpressionType.Constant)
{
var escapeCharExpression = (ConstantExpression)arguments[2];
return treeBuilder.Like(
visitor.Visit(arguments[0]).AsExpression(),
visitor.Visit(arguments[1]).AsExpression(),
treeBuilder.Constant(escapeCharExpression.Value));
}
throw new ArgumentException("The escape character must be specified as literal value or a string variable");
}