dlr 01/08/17 12:31:49
Added: src/java/org/apache/torque/engine/database/model
NameFactory.java
Log:
A name generation factory.
Revision Changes Path
1.1
jakarta-turbine-torque/src/java/org/apache/torque/engine/database/model/NameFactory.java
Index: NameFactory.java
===================================================================
package org.apache.torque.engine.database.model;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Apache Turbine" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact [EMAIL PROTECTED]
*
* 5. Products derived from this software may not be called "Apache",
* "Apache Turbine", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
import java.util.Hashtable;
import java.util.List;
/**
* A name generation factory.
*
* @author <a href="mailto:[EMAIL PROTECTED]>Daniel Rall</a>
* @version $Id: NameFactory.java,v 1.1 2001/08/17 19:31:49 dlr Exp $
*/
public class NameFactory
{
/**
* The single instance of this class.
*/
private static NameFactory instance = new NameFactory();
/**
* The cache of <code>NameGenerator</code> algorithms in use for
* name generation, keyed by fully qualified class name.
*/
private Hashtable algorithms;
/**
* Creates a new instance with storage for algorithm
* implementations.
*/
protected NameFactory()
{
algorithms = new Hashtable(3);
}
/**
* Factory method which retrieves an instance of the named
* generator.
*
* @param name The fully qualified class name of the name
* generation algorithm to retrieve.
*/
protected NameGenerator getAlgorithm(String name)
{
synchronized (algorithms)
{
NameGenerator algorithm = (NameGenerator) algorithms.get(name);
if (algorithm == null)
{
try
{
algorithm =
(NameGenerator) Class.forName(name).newInstance();
}
catch (InstantiationException e)
{
System.err.println("Unable to instantiate class " + name +
": Make sure it's in your run-time " +
"classpath");
}
catch (Exception e)
{
e.printStackTrace();
}
algorithms.put(name, algorithm);
}
return algorithm;
}
}
/**
* Given a list of <code>String</code> objects, implements an
* algorithm which produces a name.
*
* @param algorithmName The fully qualified class name of the
* {@link org.apache.torque.engine.database.model.NameGenerator}
* implementation to use to generate names.
* @param components Inputs used to generate a name.
* @return The generated name.
*/
public static String generateName(String algorithmName, List components)
{
NameGenerator algorithm = instance.getAlgorithm(algorithmName);
return algorithm.generateName(components);
}
}
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
