| /** |
| * 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 com.jwplayer.sqe.language.expression; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| public class ConstantExpression extends BaseExpression { |
| public Object constant; |
| |
| public ConstantExpression(Object constant) { |
| this.constant = constant; |
| } |
| |
| @Override |
| public boolean equals(Object expression) { |
| return (expression.getClass() == this.getClass() |
| && this.constant.equals(((ConstantExpression) expression).constant)); |
| } |
| |
| @Override |
| public ExpressionType getExpressionType() { |
| return ExpressionType.Constant; |
| } |
| |
| @Override |
| public String getOutputFieldName() { |
| return constant == null ? |
| "_C_NULL" : |
| "_C_" + constant.getClass().toString() + "_" + constant.toString(); |
| } |
| |
| @Override |
| public List<BaseExpression> unRoll() { |
| return new ArrayList<>(); |
| } |
| } |