Import cql3 package and sub-packages

Contains the cql3 grammer and supporting classes, which will be converted
one by one.

From commit bf599fb5b062cbcc652da78b7d699e7a01b949ad.

cql3/BatchQueryOptions.java

@@ -0,0 +1,111 @@
+/*
+ * 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.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+import org.apache.cassandra.db.ConsistencyLevel;
+import org.apache.cassandra.service.QueryState;
+
+public abstract class BatchQueryOptions
+{
+    public static BatchQueryOptions DEFAULT = withoutPerStatementVariables(QueryOptions.DEFAULT);
+
+    protected final QueryOptions wrapped;
+    private final List<Object> queryOrIdList;
+
+    protected BatchQueryOptions(QueryOptions wrapped, List<Object> queryOrIdList)
+    {
+        this.wrapped = wrapped;
+        this.queryOrIdList = queryOrIdList;
+    }
+
+    public static BatchQueryOptions withoutPerStatementVariables(QueryOptions options)
+    {
+        return new WithoutPerStatementVariables(options, Collections.<Object>emptyList());
+    }
+
+    public static BatchQueryOptions withPerStatementVariables(QueryOptions options, List<List<ByteBuffer>> variables, List<Object> queryOrIdList)
+    {
+        return new WithPerStatementVariables(options, variables, queryOrIdList);
+    }
+
+    public abstract QueryOptions forStatement(int i);
+
+    public ConsistencyLevel getConsistency()
+    {
+        return wrapped.getConsistency();
+    }
+
+    public ConsistencyLevel getSerialConsistency()
+    {
+        return wrapped.getSerialConsistency();
+    }
+
+    public List<Object> getQueryOrIdList()
+    {
+        return queryOrIdList;
+    }
+
+    public long getTimestamp(QueryState state)
+    {
+        return wrapped.getTimestamp(state);
+    }
+
+    private static class WithoutPerStatementVariables extends BatchQueryOptions
+    {
+        private WithoutPerStatementVariables(QueryOptions wrapped, List<Object> queryOrIdList)
+        {
+            super(wrapped, queryOrIdList);
+        }
+
+        public QueryOptions forStatement(int i)
+        {
+            return wrapped;
+        }
+    }
+
+    private static class WithPerStatementVariables extends BatchQueryOptions
+    {
+        private final List<QueryOptions> perStatementOptions;
+
+        private WithPerStatementVariables(QueryOptions wrapped, List<List<ByteBuffer>> variables, List<Object> queryOrIdList)
+        {
+            super(wrapped, queryOrIdList);
+            this.perStatementOptions = new ArrayList<>(variables.size());
+            for (final List<ByteBuffer> vars : variables)
+            {
+                perStatementOptions.add(new QueryOptions.QueryOptionsWrapper(wrapped)
+                {
+                    public List<ByteBuffer> getValues()
+                    {
+                        return vars;
+                    }
+                });
+            }
+        }
+
+        public QueryOptions forStatement(int i)
+        {
+            return perStatementOptions.get(i);
+        }
+    }
+}