| /* |
| * 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.carbondata.core.scan.filter.optimizer; |
| |
| import org.apache.carbondata.core.scan.expression.Expression; |
| import org.apache.carbondata.core.scan.expression.RangeExpressionEvaluator; |
| import org.apache.carbondata.core.scan.filter.intf.FilterOptimizer; |
| |
| public class RangeFilterOptimizer implements FilterOptimizer { |
| |
| RangeExpressionEvaluator rangeExpEvaluator; |
| |
| public RangeFilterOptimizer(Expression filterExpression) { |
| this.rangeExpEvaluator = new RangeExpressionEvaluator(filterExpression); |
| |
| } |
| |
| @Override |
| public Expression optimizeFilter() { |
| // Check if Range Filter can be applied. |
| // rangeExpEvaluator.rangeExpressionEvaluatorGraphBased(null, null); |
| rangeExpEvaluator.rangeExpressionEvaluatorMapBased(); |
| return this.rangeExpEvaluator.getExpr(); |
| } |
| } |