deletedelta.java

Wicket一个开发Java Web应用程序框架。它使得开发web应用程序变得容易而轻松。 Wicket利用一个POJO data beans组件使得它可以与任何持久层技术相结合。

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 * developed by the Apache Software Foundation (http://www.apache.org/)."
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package org.apache.wicket.util.diff;

import java.util.List;

/**
 * Holds a delete-delta between to revisions of a text.
 * 
 * @version $Id: DeleteDelta.java,v 1.1 2006/03/12 00:24:21 juanca Exp $
 * @author <a href="mailto:[e-mail]">Juanco Anez</a>
 * @see Delta
 * @see Diff
 * @see Chunk
 */
public class DeleteDelta extends Delta
{
	/**
	 * Construct.
	 */
	DeleteDelta()
	{
	}

	/**
	 * Construct.
	 * 
	 * @param orig
	 */
	public DeleteDelta(Chunk orig)
	{
		init(orig, null);
	}

	/**
	 * @see org.apache.wicket.util.diff.Delta#verify(java.util.List)
	 */
	public void verify(List target) throws PatchFailedException
	{
		if (!original.verify(target))
		{
			throw new PatchFailedException();
		}
	}

	/**
	 * @see org.apache.wicket.util.diff.Delta#applyTo(java.util.List)
	 */
	public void applyTo(List target)
	{
		original.applyDelete(target);
	}

	/**
	 * @see org.apache.wicket.util.diff.Delta#toString(java.lang.StringBuffer)
	 */
	public void toString(StringBuffer s)
	{
		s.append(original.rangeString());
		s.append("d");
		s.append(revised.rcsto());
		s.append(Diff.NL);
		original.toString(s, "< ", Diff.NL);
	}

	/**
	 * @see org.apache.wicket.util.diff.Delta#toRCSString(java.lang.StringBuffer, java.lang.String)
	 */
	public void toRCSString(StringBuffer s, String EOL)
	{
		s.append("d");
		s.append(original.rcsfrom());
		s.append(" ");
		s.append(original.size());
		s.append(EOL);
	}

	/**
	 * @see org.apache.wicket.util.diff.Delta#accept(org.apache.wicket.util.diff.RevisionVisitor)
	 */
	public void accept(RevisionVisitor visitor)
	{
		visitor.visit(this);
	}
}