| /* |
| * 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.executer; |
| |
| import java.util.BitSet; |
| |
| import org.apache.carbondata.core.scan.filter.intf.RowIntf; |
| import org.apache.carbondata.core.scan.processor.RawBlockletColumnChunks; |
| import org.apache.carbondata.core.util.BitSetGroup; |
| |
| public class TrueFilterExecutor implements FilterExecutor { |
| |
| /** |
| * API will apply filter based on resolver instance |
| * |
| * @return |
| */ |
| public BitSetGroup applyFilter(RawBlockletColumnChunks rawBlockletColumnChunks, |
| boolean useBitsetPipeLine) { |
| int numberOfPages = rawBlockletColumnChunks.getDataBlock().numberOfPages(); |
| BitSetGroup group = new BitSetGroup(numberOfPages); |
| for (int i = 0; i < numberOfPages; i++) { |
| BitSet set = new BitSet(); |
| set.flip(0, rawBlockletColumnChunks.getDataBlock().getPageRowCount(i)); |
| group.setBitSet(set, i); |
| } |
| return group; |
| } |
| |
| @Override |
| public BitSet prunePages(RawBlockletColumnChunks rawBlockletColumnChunks) { |
| int numberOfPages = rawBlockletColumnChunks.getDataBlock().numberOfPages(); |
| BitSet set = new BitSet(numberOfPages); |
| set.set(0, numberOfPages); |
| return set; |
| } |
| |
| @Override |
| public boolean applyFilter(RowIntf value, int dimOrdinalMax) { |
| return true; |
| } |
| |
| /** |
| * API will verify whether the block can be shortlisted based on block |
| * max and min key. |
| * |
| * @param blockMaxValue, maximum value of the |
| * @param blockMinValue |
| * @return BitSet |
| */ |
| public BitSet isScanRequired(byte[][] blockMaxValue, byte[][] blockMinValue, |
| boolean[] isMinMaxSet) { |
| BitSet bitSet = new BitSet(1); |
| bitSet.flip(0, 1); |
| return bitSet; |
| } |
| |
| /** |
| * It just reads necessary block for filter executor, it does not uncompress the data. |
| * |
| * @param rawBlockletColumnChunks |
| */ |
| public void readColumnChunks(RawBlockletColumnChunks rawBlockletColumnChunks) { |
| // do nothing |
| } |
| } |