DefaultSchema.java

package org.jtheque.schemas;

/*
 * Copyright JTheque (Baptiste Wicht)
 *
 * 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.
 */

import org.jtheque.utils.annotations.Immutable;
import org.jtheque.utils.bean.Version;
import org.jtheque.utils.collections.ArrayUtils;

import org.osgi.framework.BundleContext;
import org.springframework.osgi.context.BundleContextAware;

/**
 * A default schema implementation. This schema implements the basic methods of the Schema interface and get parameters
 * in constructor. This schema is immutable, except for the jdbc template managed by the super class. If you don't use
 * the setBundleContext method, this class is immutable.
 *
 * @author Baptiste Wicht
 */
@Immutable
public abstract class DefaultSchema extends AbstractSchema implements BundleContextAware {
    private static final String[] EMPTY_DEPENDENCIES = {};

    private final Version version;
    private final String id;
    private final String[] dependencies;

    /**
     * Construct a new DefaultSchema.
     *
     * @param version      The version of the schema.
     * @param id           The id of the schema.
     * @param dependencies The dependencies of the schema.
     */
    protected DefaultSchema(Version version, String id, String... dependencies) {
        super();

        this.version = version;
        this.id = id;
        this.dependencies = dependencies == null ? EMPTY_DEPENDENCIES : ArrayUtils.copyOf(dependencies);
    }

    @Override
    public Version getVersion() {
        return version;
    }

    @Override
    public String getId() {
        return id;
    }

    @Override
    public String[] getDependencies() {
        return ArrayUtils.copyOf(dependencies);
    }

    @Override
    public void setBundleContext(BundleContext bundleContext) {
        setJdbcTemplate(bundleContext);
    }
}