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'jdbacl' stands for 'Java DataBase ACcess Layer' and provides utilities for accessing JDBC databases from Java programs, retrieving meta information in an object model and querying database data. 'rapiddweller jdbacl' is forked from Databene jdbacl by Volker Bergmann.

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/*
 * (c) Copyright 2008-2011 by Volker Bergmann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, is permitted under the terms of the
 * GNU General Public License.
 *
 * For redistributing this software or a derivative work under a license other
 * than the GPL-compatible Free Software License as defined by the Free
 * Software Foundation or approved by OSI, you must first obtain a commercial
 * license to this software product from Volker Bergmann.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,
 * REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
 * HEREBY EXCLUDED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

package com.rapiddweller.jdbacl.dialect;

import com.rapiddweller.jdbacl.DatabaseDialect;
import com.rapiddweller.jdbacl.sql.Query;

/**
 * Space holder for unknown databases.


 * Created: 26.01.2008 07:13:59
 *
 * @author Volker Bergmann
 * @since 0.4.0
 */
public class UnknownDialect extends DatabaseDialect {

  private static final String DATE_PATTERN = "''dd-MMM-yyyy''";
  private static final String TIME_PATTERN = "''HH-mm-ss''";
  private static final String DATETIME_PATTERN = "''dd-MMM-yyyy HH-mm-ss''";

  /**
   * Instantiates a new Unknown dialect.
   *
   * @param system the system
   */
  public UnknownDialect(String system) {
    super(system, false, false, DATE_PATTERN, TIME_PATTERN, DATETIME_PATTERN);
  }

  @Override
  public boolean isDefaultCatalog(String catalog, String user) {
    return true; // hope that the first catalog found is the correct one
  }

  @Override
  public boolean isDefaultSchema(String schema, String user) {
    return true; // hope that the first schema found is the correct one
  }

  @Override
  public boolean isDeterministicPKName(String pkName) {
    return true; // on unknown database systems, assume the name is reproducible - that's the safer choice
  }

  @Override
  public boolean isDeterministicUKName(String pkName) {
    return true; // on unknown database systems, assume the name is reproducible - that's the safer choice
  }

  @Override
  public boolean isDeterministicFKName(String pkName) {
    return true; // on unknown database systems, assume the name is reproducible - that's the safer choice
  }

  @Override
  public boolean isDeterministicIndexName(String indexName) {
    return true; // on unknown database systems, assume the name is reproducible - that's the safer choice
  }

  @Override
  public void restrictRownums(int firstRowIndex, int rowCount, Query query) {
    throw new UnsupportedOperationException(
        "UnknownDialect.applyRownumRestriction() is not implemented"); // TODO v0.8.2 implement DatabaseDialect.applyRownumRestriction()
  }

}