// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.


#ifndef IMPALA_EXPRS_IS_NULL_PREDICATE_H_
#define IMPALA_EXPRS_IS_NULL_PREDICATE_H_

#include <string>
#include "exprs/predicate.h"

namespace impala {

class IsNullPredicate {
 public:
  template<typename T> static BooleanVal IsNull(FunctionContext* ctx, const T& val);
  template<typename T> static BooleanVal IsNotNull(FunctionContext* ctx, const T& val);
};

}

#endif