NoArgJdbcConverterFactory


1   
2   /*
3    * Copyright (c) 1998 - 2005 Versant Corporation
4    * All rights reserved. This program and the accompanying materials
5    * are made available under the terms of the Eclipse Public License v1.0
6    * which accompanies this distribution, and is available at
7    * http://www.eclipse.org/legal/epl-v10.html
8    *
9    * Contributors:
10   * Versant Corporation - initial API and implementation
11   */
12  package com.versant.core.jdbc.sql.conv;
13  
14  import com.versant.core.jdbc.JdbcConverterFactory;
15  import com.versant.core.jdbc.JdbcConverter;
16  import com.versant.core.jdbc.JdbcTypeRegistry;
17  import com.versant.core.jdbc.metadata.JdbcColumn;
18  
19  /** 
20   * Base class for JdbcConverterFactory's that do not use an args bean.
21   */
22  public abstract class NoArgJdbcConverterFactory implements JdbcConverterFactory {
23  
24      /**
25       * Create a javabean to hold args for a createJdbcConverter call or null
26       * if the converter does not accept any arguments.
27       */
28      public Object   createArgsBean() {
29          return null;  //To change body of implemented methods use Options | File Templates.
30      }
31  
32      /**
33       * Create a converter for col using args as parameters. Return null if
34       * no converter is required.
35       * @param col The column the converter is for
36       * @param args The args bean or null if none
37       * @param jdbcTypeRegistry The JDBC type registry for looking up factories
38       *        for JDBC types (for nested converters)
39       * @exception IllegalArgumentException if any params are invalid
40       */
41      public abstract JdbcConverter createJdbcConverter(JdbcColumn col,
42              Object   args, JdbcTypeRegistry jdbcTypeRegistry)
43              throws IllegalArgumentException  ;
44  
45  }
46  
47

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