org.bridje.orm.impl.ModelsThlsProvider Maven / Gradle / Ivy

Go to download
/*
 * Copyright 2017 Bridje Framework.
 *
 * 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 org.bridje.orm.impl;

import java.util.HashMap;
import java.util.Map;
import javax.sql.DataSource;
import org.bridje.orm.DataSourcesSetup;
import org.bridje.orm.OrmModel;
import org.bridje.orm.OrmService;

class ModelsThlsProvider
{
    private final DataSourcesSetup setup;

    private final Map, OrmModel> models;
    
    private final OrmService ormServ;

    public ModelsThlsProvider(DataSourcesSetup setup, OrmService ormServ)
    {
        this.models = new HashMap<>();
        this.setup = setup;
        this.ormServ = ormServ;
    }
    
    public  T getModel(Class cls)
    {
        T result = (T)models.get(cls);
        if(result == null)
        {
            DataSource ds = setup.getDataSource(cls);
            if(ds != null)
            {
                result = ormServ.createModel(ds, cls);
                models.put(cls, result);
            }
        }
        return result;
    }
}