sqlbuilder.java

把java对象映射成数据库表中的一条记录

/*
 *
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations under
 * the License.
 *
 * The Original Code is jRelationalFramework.
 *
 * The Initial Developer of the Original Code is is.com.
 * Portions created by is.com are Copyright (C) 2000 is.com.
 * All Rights Reserved.
 *
 * Contributor(s): Jonathan Carlson ([e-mail])
 * Contributor(s): ____________________________________
 *
 * Alternatively, the contents of this file may be used under the terms of
 * the GNU General Public License (the "GPL") or the GNU Lesser General
 * Public license (the "LGPL"), in which case the provisions of the GPL or
 * LGPL are applicable instead of those above.  If you wish to allow use of
 * your version of this file only under the terms of either the GPL or LGPL
 * and not to allow others to use your version of this file under the MPL,
 * indicate your decision by deleting the provisions above and replace them
 * with the notice and other provisions required by either the GPL or LGPL
 * License.  If you do not delete the provisions above, a recipient may use
 * your version of this file under either the MPL or GPL or LGPL License.
 *
 */
package com.is.jrf;


import java.util.StringTokenizer;
import java.util.List;
import java.util.ArrayList;


/**
 *  Subclasses of this class generate SQL.
 */
abstract public class SQLBuilder
  {

  /** This is a copy of the ColumnSpec list */
  protected AbstractDomain i_domain = null;
  protected List           i_columnSpecs = null;
  protected String         i_tableName = null;
  protected String         i_tableAlias = null;
  protected DatabasePolicy i_dbPolicy = null;


  /* ===============  Constructors  =============== */

  public SQLBuilder()
    {
    throw new ConfigurationException(
        "The empty constructor is not to be used: SQLBuilder() ");
    }

  public SQLBuilder(AbstractDomain domain)
    {
    i_domain = domain;
    // This list is a clone
    i_columnSpecs = domain.getColumnSpecs();
    i_tableName   = domain.getTableName();
    i_tableAlias  = domain.getTableAlias();
    i_dbPolicy    = domain.getDatabasePolicy();
    }

  public List getColumnSpecs()
    {
    return i_columnSpecs;
    }

  public String getTableName()
    {
    return i_tableName;
    }

  public String getTableAlias()
    {
    return i_tableAlias;
    }

  public DatabasePolicy getDatabasePolicy()
    {
    return i_dbPolicy;
    }

  } // SQLBuilder