| /* |
| * 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.statements; |
| |
| import java.util.Map; |
| |
| import org.apache.cassandra.config.CFMetaData; |
| import org.apache.cassandra.config.ColumnDefinition; |
| import org.apache.cassandra.cql3.ColumnIdentifier; |
| import org.apache.cassandra.db.index.SecondaryIndex; |
| |
| public class IndexTarget |
| { |
| public final ColumnIdentifier column; |
| public final TargetType type; |
| |
| private IndexTarget(ColumnIdentifier column, TargetType type) |
| { |
| this.column = column; |
| this.type = type; |
| } |
| |
| public static class Raw |
| { |
| private final ColumnIdentifier.Raw column; |
| private final TargetType type; |
| |
| private Raw(ColumnIdentifier.Raw column, TargetType type) |
| { |
| this.column = column; |
| this.type = type; |
| } |
| |
| public static Raw valuesOf(ColumnIdentifier.Raw c) |
| { |
| return new Raw(c, TargetType.VALUES); |
| } |
| |
| public static Raw keysOf(ColumnIdentifier.Raw c) |
| { |
| return new Raw(c, TargetType.KEYS); |
| } |
| |
| public static Raw keysAndValuesOf(ColumnIdentifier.Raw c) |
| { |
| return new Raw(c, TargetType.KEYS_AND_VALUES); |
| } |
| |
| public static Raw fullCollection(ColumnIdentifier.Raw c) |
| { |
| return new Raw(c, TargetType.FULL); |
| } |
| |
| public IndexTarget prepare(CFMetaData cfm) |
| { |
| return new IndexTarget(column.prepare(cfm), type); |
| } |
| } |
| |
| public static enum TargetType |
| { |
| VALUES, KEYS, KEYS_AND_VALUES, FULL; |
| |
| public String toString() |
| { |
| switch (this) |
| { |
| case KEYS: return "keys"; |
| case KEYS_AND_VALUES: return "entries"; |
| case FULL: return "full"; |
| default: return "values"; |
| } |
| } |
| |
| public String indexOption() |
| { |
| switch (this) |
| { |
| case KEYS: return SecondaryIndex.INDEX_KEYS_OPTION_NAME; |
| case KEYS_AND_VALUES: return SecondaryIndex.INDEX_ENTRIES_OPTION_NAME; |
| case VALUES: return SecondaryIndex.INDEX_VALUES_OPTION_NAME; |
| default: throw new AssertionError(); |
| } |
| } |
| |
| public static TargetType fromColumnDefinition(ColumnDefinition cd) |
| { |
| Map<String, String> options = cd.getIndexOptions(); |
| if (options.containsKey(SecondaryIndex.INDEX_KEYS_OPTION_NAME)) |
| return KEYS; |
| else if (options.containsKey(SecondaryIndex.INDEX_ENTRIES_OPTION_NAME)) |
| return KEYS_AND_VALUES; |
| else if (cd.type.isCollection() && !cd.type.isMultiCell()) |
| return FULL; |
| else |
| return VALUES; |
| } |
| } |
| } |