de.xaniox.heavyspleef.persistence.DatabaseContext.java Source code

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Here is the source code for de.xaniox.heavyspleef.persistence.DatabaseContext.java

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/*
 * This file is part of HeavySpleef.
 * Copyright (c) 2014-2016 Matthias Werning
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
package de.xaniox.heavyspleef.persistence;

import com.google.common.collect.ImmutableSet;

import java.util.Set;

public class DatabaseContext<T extends ObjectDatabaseAccessor<?>> {

    private Set<T> accessors;

    @SafeVarargs
    public DatabaseContext(T... accessors) {
        this.accessors = ImmutableSet.copyOf(accessors);
    }

    public DatabaseContext(Set<T> accessors) {
        this.accessors = ImmutableSet.copyOf(accessors);
    }

    protected synchronized <E> T searchAccessor(Class<E> objectClass) {
        for (T accessor : accessors) {
            if (accessor.getObjectClass().isAssignableFrom(objectClass)) {
                return accessor;
            }
        }

        throw new NoSuchAccessorException("The requested accessor for class \""
                + objectClass.getClass().getCanonicalName() + "\" is not available");
    }

    protected Set<T> getAccessors() {
        return accessors;
    }

}