exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/CastBigIntDate.java

/*
 * 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.
 */
package org.apache.drill.exec.expr.fn.impl;

import org.apache.drill.exec.expr.DrillSimpleFunc;
import org.apache.drill.exec.expr.annotations.FunctionTemplate;
import org.apache.drill.exec.expr.annotations.FunctionTemplate.NullHandling;
import org.apache.drill.exec.expr.annotations.Output;
import org.apache.drill.exec.expr.annotations.Param;
import org.apache.drill.exec.expr.holders.BigIntHolder;
import org.apache.drill.exec.expr.holders.DateHolder;

@SuppressWarnings("unused")
@FunctionTemplate(names = {"castDATE", "to_date"}, scope = FunctionTemplate.FunctionScope.SIMPLE, nulls= NullHandling.NULL_IF_NULL)
public class CastBigIntDate implements DrillSimpleFunc {

  @Param
  BigIntHolder in;
  @Output
  DateHolder out;

  @Override
  public void setup() {
  }

  @Override
  public void eval() {
    out.value = in.value;
  }
}