dk.eobjects.metamodel.schema.JdbcTable Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of MetaModel-jdbc
The newest version!
/**
 *  This file is part of MetaModel.
 *
 *  MetaModel 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.
 *
 *  MetaModel 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 MetaModel.  If not, see .
 */
package dk.eobjects.metamodel.schema;

import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.List;

import dk.eobjects.metamodel.JdbcDataContextStrategy;

public class JdbcTable extends Table {

	private static final long serialVersionUID = 5952310469458880330L;
	private transient JdbcDataContextStrategy _strategy;
	private transient boolean _columnsLoaded = false;
	private transient boolean _indexesLoaded = false;

	public JdbcTable(String name, TableType type, JdbcSchema schema,
			JdbcDataContextStrategy strategy) {
		super(name, type, schema);
		_strategy = strategy;
	}

	@Override
	protected List getColumnsInternal() {
		if (!_columnsLoaded) {
			_columnsLoaded = true;
			if (_strategy != null) {
				_strategy.loadColumns(this);
			}
		}
		return super.getColumnsInternal();
	}

	@Override
	protected List getRelationshipsInternal() {
		Schema schema = getSchema();
		if (schema instanceof JdbcSchema) {
			((JdbcSchema) schema).loadRelations();
		}
		return super.getRelationshipsInternal();
	}

	protected void loadIndexes() {
		if (!_indexesLoaded) {
			_indexesLoaded = true;
			if (_strategy != null) {
				_strategy.loadIndexes(this);
			}
		}
	}

	/**
	 * Called by the Java Serialization API to serialize the object.
	 */
	private void writeObject(ObjectOutputStream stream) throws IOException {
		Schema schema = getSchema();
		if (schema instanceof JdbcSchema) {
			schema = ((JdbcSchema) schema).toSerializableForm();
		}
		stream.writeObject(schema);
		stream.writeObject(getName());
	}

	/**
	 * Called by the Java Serialization API to deserialize the object.
	 */
	private void readObject(ObjectInputStream stream) throws IOException,
			ClassNotFoundException {
		Schema schema = (Schema) stream.readObject();
		String tableName = (String) stream.readObject();
		Table table = schema.getTableByName(tableName);
		setName(tableName);
		setSchema(schema);
		setQuote(table.getQuote());
		setRemarks(table.getRemarks());
		setType(table.getType());
		setColumns(table.getColumns());
		_columnsLoaded = true;
		_indexesLoaded = true;
	}
}