com.speedment.runtime.config.identifier.DbmsIdentifier Maven / Gradle / Ivy

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A Speedment bundle that shades all dependencies into one jar. This is useful when deploying an application on a server.

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/*
 *
 * Copyright (c) 2006-2019, Speedment, Inc. All Rights Reserved.
 *
 * 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.speedment.runtime.config.identifier;

import com.speedment.runtime.config.identifier.trait.HasDbmsId;
import com.speedment.runtime.config.internal.identifier.DbmsIdentifierImpl;
import com.speedment.runtime.config.util.DocumentDbUtil;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;

/**
 * Identifies a particular Schema. The identifier is an immutable non-complex
 * object that only contains the names of the nodes required to uniquely
 * identify it in the database.
 * 
 * To find the actual documents referred to by the identifier, the following
 * utility methods can be used:
 * 

 *
 * DocumentDbUtil#referencedSchema(Project, Project, TableIdentifier)
 * 
DocumentDbUtil#referencedDbms(Project, TableIdentifier)
 * 
 *
 * @param  the entity type
 *
 * @author Per Minborg
 * @since 3.0.1
 * @see DocumentDbUtil
 */
public interface DbmsIdentifier extends HasDbmsId {

    class Hidden {

        private static final Map, DbmsIdentifier> INTERNED = new ConcurrentHashMap<>();

    }

    static  DbmsIdentifier of(String dbmsName) {
        final DbmsIdentifier newId = new DbmsIdentifierImpl<>(dbmsName);
        Hidden.INTERNED.putIfAbsent(newId, newId);

        @SuppressWarnings("unchecked")
        final DbmsIdentifier result = (DbmsIdentifier) Hidden.INTERNED.get(newId);
        return result;
    }
}