Line data    Source code

       1             : // Copyright (C) 2014 The Android Open Source Project
       2             : //
       3             : // Licensed under the Apache License, Version 2.0 (the "License");
       4             : // you may not use this file except in compliance with the License.
       5             : // You may obtain a copy of the License at
       6             : //
       7             : // http://www.apache.org/licenses/LICENSE-2.0
       8             : //
       9             : // Unless required by applicable law or agreed to in writing, software
      10             : // distributed under the License is distributed on an "AS IS" BASIS,
      11             : // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      12             : // See the License for the specific language governing permissions and
      13             : // limitations under the License.
      14             : 
      15             : package com.google.gerrit.index.query;
      16             : 
      17             : import com.google.gerrit.index.SchemaFieldDefs.SchemaField;
      18             : import com.google.gerrit.index.query.RangeUtil.Range;
      19             : 
      20             : public abstract class IntegerRangePredicate<T> extends IndexPredicate<T> {
      21             :   private final Range range;
      22             : 
      23             :   protected IntegerRangePredicate(SchemaField<T, Integer> type, String value)
      24             :       throws QueryParseException {
      25           6 :     super(type, value);
      26           6 :     range = RangeUtil.getRange(value, Integer.MIN_VALUE, Integer.MAX_VALUE);
      27           6 :     if (range == null) {
      28           0 :       throw new QueryParseException("Invalid range predicate: " + value);
      29             :     }
      30           6 :   }
      31             : 
      32             :   protected abstract Integer getValueInt(T object);
      33             : 
      34             :   @Override
      35             :   public boolean match(T object) {
      36           4 :     Integer valueInt = getValueInt(object);
      37           4 :     if (valueInt == null) {
      38           0 :       return false;
      39             :     }
      40           4 :     return valueInt >= range.min && valueInt <= range.max;
      41             :   }
      42             : 
      43             :   /** Return the minimum value of this predicate's range, inclusive. */
      44             :   public int getMinimumValue() {
      45           2 :     return range.min;
      46             :   }
      47             : 
      48             :   /** Return the maximum value of this predicate's range, inclusive. */
      49             :   public int getMaximumValue() {
      50           2 :     return range.max;
      51             :   }
      52             : }