/* * 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 org.apache.cassandra.config.CFMetaData; import org.apache.cassandra.db.rows.UnfilteredRowIterator; /** * An iterator over a number of unfiltered partitions (i.e. partitions containing deletion informations). * * The object returned by a call to next() is only guaranteed to be * valid until the next call to hasNext() or next(). If a consumer wants to keep a * reference on the returned objects for longer than the iteration, it must * make a copy of it explicitely. */ public interface UnfilteredPartitionIterator extends BasePartitionIterator<UnfilteredRowIterator> { /** * Whether that partition iterator is for a thrift queries. * <p> * If this is true, the partition iterator may return some empty UnfilteredRowIterator and those * should be preserved as thrift include partitions that "exists" (have some cells even * if this are actually deleted) but have nothing matching the query. * * @return whether the iterator is for a thrift query. */ public boolean isForThrift(); public CFMetaData metadata(); }