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/*
* SearchTerm.java
* Copyright (C) 2002 The Free Software Foundation
*
* This file is part of GNU JavaMail, a library.
*
* GNU JavaMail is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* GNU JavaMail is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* As a special exception, if you link this library with other files to
* produce an executable, this library does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* This exception does not however invalidate any other reasons why the
* executable file might be covered by the GNU General Public License.
*/
package javax.mail.search;
import java.io.Serializable;
import javax.mail.Message;
/**
* Search criteria are expressed as a tree of search-terms,
* forming a parse-tree for the search expression.
* <p>
* Search-terms are represented by this class. This is an abstract class;
* subclasses implement specific match methods.
* <p>
* Search terms are serializable, which allows storing a search term between
* sessions. Warning: Serialized objects of this class may not be compatible
* with future JavaMail API releases. The current serialization support is
* appropriate for short term storage.
* <p>
* Warning: Search terms that include references to objects of type
* Message.RecipientType will not be deserialized correctly on JDK 1.1
* systems. While these objects will be deserialized without throwing any
* exceptions, the resulting objects violate the type-safe enum contract of
* the Message.RecipientType class. Proper deserialization of these objects
* depends on support for the readReplace method, added in JDK 1.2.
*
* @author <a href="mailto:dog@gnu.org">Chris Burdess</a>
* @version 1.3
*/
public abstract class SearchTerm
implements Serializable
{
/**
* This method applies a specific match criterion to the given message and
* returns the result.
* @param msg The match criterion is applied on this message
* @return true, it the match succeeds, false if the match fails
*/
public abstract boolean match(Message msg);
}
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