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/*******************************************************************************
* Copyright (c) 2004 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.wst.command.internal.env.core.fragment;
import java.util.Hashtable;
import org.eclipse.wst.command.internal.env.core.registry.CommandRegistry;
public class ExtensionFragment extends AbstractCommandFragment
{
private String[] ids_;;
private CommandRegistry extensionRegistry_;
private Hashtable fragments_;
/**
* The default constructor
*
*/
public ExtensionFragment()
{
super( null, "" );
fragments_ = new Hashtable();
}
/**
* Copy constructor.
* @param Fragment the fragment to copy
*/
protected ExtensionFragment( ExtensionFragment fragment )
{
super( fragment );
ids_ = fragment.ids_;
extensionRegistry_ = fragment.extensionRegistry_;
fragments_ = fragment.fragments_;
}
/**
*
* @param ids Sets the IDs for this extension fragment.
*/
public void setExtensionIds( String[] ids )
{
ids_ = ids;
}
/**
*
* @param registry Sets the registry for this extension fragment.
*/
public void setExtensionRegistry( CommandRegistry registry )
{
extensionRegistry_ = registry;
}
/**
* @see org.eclipse.wst.command.internal.env.core.fragment.CommandFragment#getFirstSubFragment()
*/
public CommandFragment getFirstSubFragment()
{
CommandFragmentFactoryFactory factory = extensionRegistry_.getFactoryFactory( ids_ );
if( factory == null ) return null;
CommandFragment fragment = (CommandFragment)fragments_.get( factory );
if( fragment == null )
{
fragment = factory.create().create();
fragments_.put( factory, fragment );
}
return fragment;
}
/**
* @see org.eclipse.wst.command.internal.env.core.fragment.CommandFragment#getNextSubFragment(org.eclipse.wst.command.internal.env.core.fragment.CommandFragment)
*/
public CommandFragment getNextSubFragment(CommandFragment fragment)
{
return null;
}
/**
* @see java.lang.Object#clone()
*/
public Object clone()
{
return new ExtensionFragment( this );
}
}
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