| /* |
| * |
| * 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.cassandra.db.transform; |
| |
| import org.apache.cassandra.db.DeletionPurger; |
| import org.apache.cassandra.db.rows.*; |
| |
| public final class Filter extends Transformation |
| { |
| private final int nowInSec; |
| private final boolean enforceStrictLiveness; |
| |
| public Filter(int nowInSec, boolean enforceStrictLiveness) |
| { |
| this.nowInSec = nowInSec; |
| this.enforceStrictLiveness = enforceStrictLiveness; |
| } |
| |
| @Override |
| @SuppressWarnings("resource") |
| protected RowIterator applyToPartition(BaseRowIterator iterator) |
| { |
| return iterator instanceof UnfilteredRows |
| ? new FilteredRows(this, (UnfilteredRows) iterator) |
| : new FilteredRows((UnfilteredRowIterator) iterator, this); |
| } |
| |
| @Override |
| protected Row applyToStatic(Row row) |
| { |
| if (row.isEmpty()) |
| return Rows.EMPTY_STATIC_ROW; |
| |
| row = row.purge(DeletionPurger.PURGE_ALL, nowInSec, enforceStrictLiveness); |
| return row == null ? Rows.EMPTY_STATIC_ROW : row; |
| } |
| |
| @Override |
| protected Row applyToRow(Row row) |
| { |
| return row.purge(DeletionPurger.PURGE_ALL, nowInSec, enforceStrictLiveness); |
| } |
| |
| @Override |
| protected RangeTombstoneMarker applyToMarker(RangeTombstoneMarker marker) |
| { |
| return null; |
| } |
| } |