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/*
 * Copyright 2016 Objectos, Fábrica de Software LTDA.
 *
 * 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 br.com.objectos.schema;

import br.com.objectos.db.Dialect;
import br.com.objectos.db.IndexElement;
import br.com.objectos.db.SchemaBuilder;
import br.com.objectos.testable.Testable;

/**
 * @author [email protected] (Marcio Endo)
 */
public abstract class ColumnDef
    implements
    CanToStringDialect,
    IndexElement,
    Testable {

  abstract String name();
  abstract boolean nullable();

  ColumnDef() {
  }

  @Override
  public final SchemaBuilder acceptIndexElement(SchemaBuilder sql) {
    return sql.identifier(name());
  }

  @Override
  public final String toString(Dialect dialect) {
    SchemaBuilder sql = dialect.sqlBuilder().toSchemaBuilder();
    return acceptSchemaElement(sql).toString();
  }

  abstract SchemaBuilder acceptSchemaElement(SchemaBuilder sql);

  String identifier() {
    return name();
  }

}