| /* |
| * 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.hyracks.algebricks.core.jobgen.impl; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.hyracks.algebricks.core.algebra.base.LogicalVariable; |
| import org.apache.hyracks.algebricks.core.algebra.operators.logical.IOperatorSchema; |
| |
| public class OperatorSchemaImpl implements IOperatorSchema { |
| private final Map<LogicalVariable, Integer> varMap; |
| |
| private final List<LogicalVariable> varList; |
| |
| public OperatorSchemaImpl() { |
| varMap = new HashMap<LogicalVariable, Integer>(); |
| varList = new ArrayList<LogicalVariable>(); |
| } |
| |
| @Override |
| public void addAllVariables(IOperatorSchema source) { |
| for (LogicalVariable v : source) { |
| varMap.put(v, varList.size()); |
| varList.add(v); |
| } |
| } |
| |
| @Override |
| public void addAllNewVariables(IOperatorSchema source) { |
| for (LogicalVariable v : source) { |
| if (varMap.get(v) == null) { |
| varMap.put(v, varList.size()); |
| varList.add(v); |
| } |
| } |
| } |
| |
| @Override |
| public int addVariable(LogicalVariable var) { |
| int idx = varList.size(); |
| varMap.put(var, idx); |
| varList.add(var); |
| return idx; |
| } |
| |
| @Override |
| public void clear() { |
| varMap.clear(); |
| varList.clear(); |
| } |
| |
| @Override |
| public int findVariable(LogicalVariable var) { |
| Integer i = varMap.get(var); |
| if (i == null) { |
| return -1; |
| } |
| return i; |
| } |
| |
| @Override |
| public int getSize() { |
| return varList.size(); |
| } |
| |
| @Override |
| public LogicalVariable getVariable(int index) { |
| return varList.get(index); |
| } |
| |
| @Override |
| public Iterator<LogicalVariable> iterator() { |
| return varList.iterator(); |
| } |
| |
| @Override |
| public String toString() { |
| return varMap.toString(); |
| } |
| } |