/**
 * 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.alibaba.jstorm.window;

public class GlobalWindow extends TimeWindow {

    private static final long serialVersionUID = 1L;

    private static GlobalWindow INSTANCE = new GlobalWindow(Long.MIN_VALUE, Long.MAX_VALUE);

    private GlobalWindow(long start, long end) {
        super(start, end);
    }

    public static GlobalWindow get() {
        return INSTANCE;
    }

    @Override
    public long maxTimestamp() {
        return Long.MAX_VALUE;
    }

    @Override
    public boolean equals(Object o) {
        return this == o || !(o == null || getClass() != o.getClass());
    }

    @Override
    public int hashCode() {
        return 0;
    }

    @Override
    public String toString() {
        return "GlobalWindow";
    }
}