All Downloads are FREE. Search and download functionalities are using the official Maven repository.

org.apache.cassandra.cql3.restrictions.Restriction Maven / Gradle / Ivy

There is a newer version: 4.3.1.0
Show newest version
/*
 * 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.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.index.SecondaryIndexManager;

/**
 * 

Implementation of this class must be immutable.

*/ public interface Restriction { public default boolean isOnToken() { return false; } /** * Returns the definition of the first column. * @return the definition of the first column. */ public ColumnDefinition getFirstColumn(); /** * Returns the definition of the last column. * @return the definition of the last column. */ public ColumnDefinition getLastColumn(); /** * Returns the column definitions in position order. * @return the column definitions in position order. */ public List 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 */ void addFunctionsTo(List functions); /** * Check if the restriction is on indexed columns. * * @param indexManager the index manager * @return true if the restriction is on indexed columns, false */ public boolean hasSupportingIndex(SecondaryIndexManager indexManager); /** * Adds to the specified row filter the expressions corresponding to this Restriction. * * @param filter the row filter to add expressions to * @param indexManager the secondary index manager * @param options the query options */ public void addRowFilterTo(RowFilter filter, SecondaryIndexManager indexManager, QueryOptions options); }




© 2015 - 2024 Weber Informatics LLC | Privacy Policy