/** * Copyright (c) 2015 Michael Hunger * * This file is part of Relational to Neo4j Importer. * * Relational to Neo4j Importer 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. * * Relational to Neo4j Importer 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 Relational to Neo4j Importer. If not, see <http://www.gnu.org/licenses/>. */ package org.neo4j.imports; import schemacrawler.schema.Catalog; import schemacrawler.schema.Column; import schemacrawler.schema.Schema; import schemacrawler.schema.Table; import schemacrawler.schemacrawler.SchemaCrawlerException; import schemacrawler.schemacrawler.SchemaCrawlerOptions; import schemacrawler.schemacrawler.SchemaInfoLevel; import schemacrawler.utility.SchemaCrawlerUtility; import java.sql.*; import java.util.Properties; /** * @author mh * @since 01.03.15 */ public class SchemaCrawlerTest { public static void main(String[] args) throws SQLException, SchemaCrawlerException, ClassNotFoundException { Driver driver = DriverManager.getDriver("jdbc:derby:memory:test;create=true"); Connection connection = DriverManager.getConnection("jdbc:derby:memory:test;create=true", new Properties()); Statement statement = connection.createStatement(); // id INT NOT NULL GENERATED ALWAYS AS IDENTITY (START WITH 0, INCREMENT BY 1) statement.execute("CREATE TABLE USERS (id INT NOT NULL, name varchar(20), constraint users_pk_id primary key(id))"); statement.execute("CREATE TABLE FRIENDS (id1 INT, id2 INT, " + " constraint fk_users_id1 foreign key(id1) references users(id)," + " constraint fk_users_id2 foreign key(id2) references users(id)" + ")"); final SchemaCrawlerOptions options = new SchemaCrawlerOptions(); options.setSchemaInfoLevel(SchemaInfoLevel.standard()); final Catalog catalog = SchemaCrawlerUtility.getCatalog(connection, options); for (final Schema schema : catalog.getSchemas()) { System.out.println(schema); for (final Table table : catalog.getTables(schema)) { System.out.println("o--> " + table + " pk " + table.getPrimaryKey() + " fks " + table.getForeignKeys() + " type " + table.getTableType()); for (final Column column : table.getColumns()) { System.out.println(" o--> " + column + " pk: " + column.isPartOfPrimaryKey() + " fk: " + column.isPartOfForeignKey()); } } } } }