| /* |
| * 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.cql3.restrictions; |
| |
| import java.util.Collection; |
| import java.util.List; |
| |
| import org.apache.cassandra.config.ColumnDefinition; |
| import org.apache.cassandra.cql3.QueryOptions; |
| import org.apache.cassandra.cql3.functions.Function; |
| import org.apache.cassandra.db.filter.RowFilter; |
| import org.apache.cassandra.exceptions.InvalidRequestException; |
| import org.apache.cassandra.index.SecondaryIndexManager; |
| |
| /** |
| * Sets of restrictions |
| */ |
| interface Restrictions |
| { |
| /** |
| * Returns the column definitions in position order. |
| * @return the column definitions in position order. |
| */ |
| public Collection<ColumnDefinition> getColumnDefs(); |
| |
| /** |
| * Adds all functions (native and user-defined) used by any component of the restriction |
| * to the specified list. |
| * @param functions the list to add to |
| */ |
| public void addFunctionsTo(List<Function> functions); |
| |
| /** |
| * Check if the restriction is on indexed columns. |
| * |
| * @param indexManager the index manager |
| * @return <code>true</code> if the restriction is on indexed columns, <code>false</code> |
| */ |
| public boolean hasSupportingIndex(SecondaryIndexManager indexManager); |
| |
| /** |
| * Adds to the specified row filter the expressions corresponding to this <code>Restrictions</code>. |
| * |
| * @param filter the row filter to add expressions to |
| * @param indexManager the secondary index manager |
| * @param options the query options |
| * @throws InvalidRequestException if this <code>Restrictions</code> cannot be converted into a row filter |
| */ |
| public void addRowFilterTo(RowFilter filter, SecondaryIndexManager indexManager, QueryOptions options) throws InvalidRequestException; |
| |
| /** |
| * Checks if this <code>PrimaryKeyRestrictionSet</code> is empty or not. |
| * |
| * @return <code>true</code> if this <code>PrimaryKeyRestrictionSet</code> is empty, <code>false</code> otherwise. |
| */ |
| boolean isEmpty(); |
| |
| /** |
| * Returns the number of columns that have a restriction. |
| * |
| * @return the number of columns that have a restriction. |
| */ |
| public int size(); |
| } |