Android example source code file (HistoryRecord.java)

This example Android source code file (HistoryRecord.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

historyrecord, language, long, object, override, separator, string

The HistoryRecord.java Android example source code

/*
 * Copyright (C) 2008 Google Inc.
 *
 * Licensed 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.beust.android.translate;

import static com.beust.android.translate.Languages.Language;

/**
 * This class describes one entry in the history
 */
public class HistoryRecord {
    private static final String SEPARATOR = "@";

    public Language from;
    public Language to;
    public String input;
    public String output;
    public long when;

    public HistoryRecord(Language from, Language to, String input, String output, long when) {
        super();
        this.from = from;
        this.to = to;
        this.input = input;
        this.output = output;
        this.when = when;
    }

    @Override
    public boolean equals(Object o) {
        if (o == null) return false;
        if (o == this) return true;
        try {
            HistoryRecord other = (HistoryRecord) o;
            return other.from.equals(from) && other.to.equals(to) &&
                    other.input.equals(input) && other.output.equals(output);
        } catch(Exception ex) {
            return false;
        }
    }

    @Override
    public int hashCode() {
        return from.hashCode() ^ to.hashCode() ^ input.hashCode() ^ output.hashCode();
    }

    public String encode() {
        return from.name() + SEPARATOR + to.name() + SEPARATOR + input
                + SEPARATOR + output + SEPARATOR + new Long(when);
    }
    
    @Override
    public String toString() {
        return encode();
    }
    
    public static HistoryRecord decode(String s) {
        Object[] o = s.split(SEPARATOR);
        int i = 0;
        Language from = Language.valueOf((String) o[i++]);
        Language to = Language.valueOf((String) o[i++]);
        String input = (String) o[i++];
        String output = (String) o[i++];
        Long when = Long.valueOf((String) o[i++]);
        HistoryRecord result = new HistoryRecord(from, to, input, output, when);
        return result;
    }
    
}