| /* |
| * 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.partitions; |
| |
| import java.util.Iterator; |
| |
| import org.apache.cassandra.config.CFMetaData; |
| import org.apache.cassandra.db.DecoratedKey; |
| import org.apache.cassandra.db.DeletionInfo; |
| import org.apache.cassandra.db.PartitionColumns; |
| import org.apache.cassandra.db.rows.*; |
| |
| public class FilteredPartition extends ImmutableBTreePartition |
| { |
| public FilteredPartition(RowIterator rows) |
| { |
| super(rows.metadata(), rows.partitionKey(), build(rows, DeletionInfo.LIVE, false, 16)); |
| } |
| |
| /** |
| * Create a FilteredPartition holding all the rows of the provided iterator. |
| * |
| * Warning: Note that this method does not close the provided iterator and it is |
| * up to the caller to do so. |
| */ |
| public static FilteredPartition create(RowIterator iterator) |
| { |
| return new FilteredPartition(iterator); |
| } |
| |
| public RowIterator rowIterator() |
| { |
| final Iterator<Row> iter = iterator(); |
| return new RowIterator() |
| { |
| public CFMetaData metadata() |
| { |
| return metadata; |
| } |
| |
| public boolean isReverseOrder() |
| { |
| return false; |
| } |
| |
| public PartitionColumns columns() |
| { |
| return FilteredPartition.this.columns(); |
| } |
| |
| public DecoratedKey partitionKey() |
| { |
| return partitionKey; |
| } |
| |
| public Row staticRow() |
| { |
| return FilteredPartition.this.staticRow(); |
| } |
| |
| public void close() {} |
| |
| public boolean hasNext() |
| { |
| return iter.hasNext(); |
| } |
| |
| public Row next() |
| { |
| return iter.next(); |
| } |
| |
| public boolean isEmpty() |
| { |
| return staticRow().isEmpty() && !hasRows(); |
| } |
| }; |
| } |
| } |