| /* |
| * 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; |
| |
| import java.util.List; |
| |
| import org.apache.cassandra.cql3.functions.Function; |
| import org.apache.cassandra.db.marshal.CollectionType; |
| import org.apache.cassandra.db.marshal.ListType; |
| import org.apache.cassandra.exceptions.InvalidRequestException; |
| |
| /** |
| * A single bind marker. |
| */ |
| public abstract class AbstractMarker extends Term.NonTerminal |
| { |
| protected final int bindIndex; |
| protected final ColumnSpecification receiver; |
| |
| protected AbstractMarker(int bindIndex, ColumnSpecification receiver) |
| { |
| this.bindIndex = bindIndex; |
| this.receiver = receiver; |
| } |
| |
| public void collectMarkerSpecification(VariableSpecifications boundNames) |
| { |
| boundNames.add(bindIndex, receiver); |
| } |
| |
| public boolean containsBindMarker() |
| { |
| return true; |
| } |
| |
| public void addFunctionsTo(List<Function> functions) |
| { |
| } |
| |
| /** |
| * A parsed, but non prepared, bind marker. |
| */ |
| public static class Raw extends Term.Raw |
| { |
| private final int bindIndex; |
| |
| public Raw(int bindIndex) |
| { |
| this.bindIndex = bindIndex; |
| } |
| |
| public NonTerminal prepare(String keyspace, ColumnSpecification receiver) throws InvalidRequestException |
| { |
| if (!(receiver.type instanceof CollectionType)) |
| return new Constants.Marker(bindIndex, receiver); |
| |
| switch (((CollectionType)receiver.type).kind) |
| { |
| case LIST: return new Lists.Marker(bindIndex, receiver); |
| case SET: return new Sets.Marker(bindIndex, receiver); |
| case MAP: return new Maps.Marker(bindIndex, receiver); |
| } |
| throw new AssertionError(); |
| } |
| |
| public AssignmentTestable.TestResult testAssignment(String keyspace, ColumnSpecification receiver) |
| { |
| return AssignmentTestable.TestResult.WEAKLY_ASSIGNABLE; |
| } |
| |
| @Override |
| public String getText() |
| { |
| return "?"; |
| } |
| |
| public int bindIndex() |
| { |
| return bindIndex; |
| } |
| } |
| |
| /** A MultiColumnRaw version of AbstractMarker.Raw */ |
| public static abstract class MultiColumnRaw extends Term.MultiColumnRaw |
| { |
| protected final int bindIndex; |
| |
| public MultiColumnRaw(int bindIndex) |
| { |
| this.bindIndex = bindIndex; |
| } |
| |
| public NonTerminal prepare(String keyspace, ColumnSpecification receiver) throws InvalidRequestException |
| { |
| throw new AssertionError("MultiColumnRaw..prepare() requires a list of receivers"); |
| } |
| |
| public AssignmentTestable.TestResult testAssignment(String keyspace, ColumnSpecification receiver) |
| { |
| return AssignmentTestable.TestResult.WEAKLY_ASSIGNABLE; |
| } |
| |
| @Override |
| public String getText() |
| { |
| return "?"; |
| } |
| } |
| |
| /** |
| * A raw placeholder for multiple values of the same type for a single column. |
| * For example, "SELECT ... WHERE user_id IN ?'. |
| * |
| * Because a single type is used, a List is used to represent the values. |
| */ |
| public static class INRaw extends Raw |
| { |
| public INRaw(int bindIndex) |
| { |
| super(bindIndex); |
| } |
| |
| private static ColumnSpecification makeInReceiver(ColumnSpecification receiver) |
| { |
| ColumnIdentifier inName = new ColumnIdentifier("in(" + receiver.name + ")", true); |
| return new ColumnSpecification(receiver.ksName, receiver.cfName, inName, ListType.getInstance(receiver.type, false)); |
| } |
| |
| @Override |
| public AbstractMarker prepare(String keyspace, ColumnSpecification receiver) throws InvalidRequestException |
| { |
| return new Lists.Marker(bindIndex(), makeInReceiver(receiver)); |
| } |
| } |
| } |