792f606a64
Contains the cql3 grammer and supporting classes, which will be converted one by one. From commit bf599fb5b062cbcc652da78b7d699e7a01b949ad.
65 lines
2.2 KiB
Java
65 lines
2.2 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.cassandra.cql3.statements;
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import org.apache.cassandra.cql3.CFName;
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import org.apache.cassandra.service.ClientState;
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import org.apache.cassandra.exceptions.InvalidRequestException;
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/**
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* Abstract class for statements that apply on a given column family.
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*/
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public abstract class CFStatement extends ParsedStatement
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{
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protected final CFName cfName;
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protected CFStatement(CFName cfName)
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{
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this.cfName = cfName;
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}
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public void prepareKeyspace(ClientState state) throws InvalidRequestException
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{
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if (!cfName.hasKeyspace())
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{
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// XXX: We explicitely only want to call state.getKeyspace() in this case, as we don't want to throw
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// if not logged in any keyspace but a keyspace is explicitely set on the statement. So don't move
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// the call outside the 'if' or replace the method by 'prepareKeyspace(state.getKeyspace())'
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cfName.setKeyspace(state.getKeyspace(), true);
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}
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}
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// Only for internal calls, use the version with ClientState for user queries
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public void prepareKeyspace(String keyspace)
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{
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if (!cfName.hasKeyspace())
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cfName.setKeyspace(keyspace, true);
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}
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public String keyspace()
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{
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assert cfName.hasKeyspace() : "The statement hasn't be prepared correctly";
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return cfName.getKeyspace();
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}
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public String columnFamily()
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{
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return cfName.getColumnFamily();
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}
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}
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