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SO Common utility classes

There is a newer version: 1.0.9

/*
 * Copyright 2018 Syam Pillai
 *
 * 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.storedobject.common;

public interface DataSet {

    void set(String key, Object value);
    boolean canSet(String key);
    Object get(String key);
    StringList keys();
    void add(String key);
    void remove(String key);

    default Class getType(String key) {
        Object v = get(key);
        return v == null ? null : v.getClass();
    }
}