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// Copyright (C) 2014 The Android Open Source Project
//
// Licensed 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 com.google.gerrit.index.query;

import com.google.gerrit.index.SchemaFieldDefs.SchemaField;
import com.google.gerrit.index.query.RangeUtil.Range;

public abstract class IntegerRangePredicate extends IndexPredicate {
  private final Range range;

  protected IntegerRangePredicate(SchemaField type, String value)
      throws QueryParseException {
    super(type, value);
    range = RangeUtil.getRange(value, Integer.MIN_VALUE, Integer.MAX_VALUE);
    if (range == null) {
      throw new QueryParseException("Invalid range predicate: " + value);
    }
  }

  protected abstract Integer getValueInt(T object);

  @Override
  public boolean match(T object) {
    Integer valueInt = getValueInt(object);
    if (valueInt == null) {
      return false;
    }
    return valueInt >= range.min && valueInt <= range.max;
  }

  /** Return the minimum value of this predicate's range, inclusive. */
  public int getMinimumValue() {
    return range.min;
  }

  /** Return the maximum value of this predicate's range, inclusive. */
  public int getMaximumValue() {
    return range.max;
  }
}




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