sql/src/main/java/org/apache/druid/sql/calcite/filtration/BoundValue.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.druid.sql.calcite.filtration;

import org.apache.druid.java.util.common.ISE;
import org.apache.druid.query.ordering.StringComparator;

import java.util.Objects;

public class BoundValue implements Comparable<BoundValue>
{
  private final String value;
  private final StringComparator comparator;

  public BoundValue(String value, StringComparator comparator)
  {
    this.value = value;
    this.comparator = comparator;
  }

  public String getValue()
  {
    return value;
  }

  public StringComparator getComparator()
  {
    return comparator;
  }

  @Override
  public boolean equals(Object o)
  {
    if (this == o) {
      return true;
    }
    if (o == null || getClass() != o.getClass()) {
      return false;
    }

    BoundValue that = (BoundValue) o;

    if (!Objects.equals(value, that.value)) {
      return false;
    }
    return Objects.equals(comparator, that.comparator);

  }

  @Override
  public int hashCode()
  {
    int result = value != null ? value.hashCode() : 0;
    result = 31 * result + (comparator != null ? comparator.hashCode() : 0);
    return result;
  }

  @Override
  public int compareTo(BoundValue o)
  {
    if (!comparator.equals(o.comparator)) {
      throw new ISE("Comparator mismatch");
    }
    return comparator.compare(value, o.value);
  }

  @Override
  public String toString()
  {
    return value;
  }
}