| /* |
| * 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.geode.cache.query.internal.parse; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import antlr.Token; |
| import antlr.collections.AST; |
| |
| import org.apache.geode.cache.query.internal.QCompiler; |
| |
| public class ASTSelect extends GemFireAST { |
| private static final long serialVersionUID = 1389351692304773456L; |
| |
| |
| public ASTSelect() {} |
| |
| |
| public ASTSelect(Token t) { |
| super(t); |
| } |
| |
| |
| @Override |
| public void compile(QCompiler compiler) { |
| AST child = getFirstChild(); |
| Map<Integer, Object> queryComponents = new HashMap<Integer, Object>(); |
| // The query components are : |
| // 1) Distinct | All |
| // 2) Hint |
| // 3) count |
| // 4) Projection Attrib |
| // 5) From Clause |
| // 6) where clause |
| // 7) group by clause |
| // 8) order by clause |
| // 9) limit |
| while (child != null) { |
| int clauseType = child.getType(); |
| ((GemFireAST) child).compile(compiler); |
| Object compiledObject = compiler.pop(); |
| queryComponents.put(clauseType, compiledObject); |
| child = child.getNextSibling(); |
| } |
| |
| compiler.select(queryComponents); |
| } |
| |
| |
| } |