/*
* The contents of this file are subject to the terms
* of the Common Development and Distribution License
* (the "License"). You may not use this file except
* in compliance with the License.
*
* You can obtain a copy of the license at
* glassfish/bootstrap/legal/CDDLv1.0.txt or
* https://glassfish.dev.java.net/public/CDDLv1.0.html.
* See the License for the specific language governing
* permissions and limitations under the License.
*
* When distributing Covered Code, include this CDDL
* HEADER in each file and include the License file at
* glassfish/bootstrap/legal/CDDLv1.0.txt. If applicable,
* add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your
* own identifying information: Portions Copyright [yyyy]
* [name of copyright owner]
*/
/*
* @(#)NotTerm.java 1.9 05/08/29
*
* Copyright 1997-2005 Sun Microsystems, Inc. All Rights Reserved.
*/
package javax.mail.search;
import javax.mail.Message;
/**
* This class implements the logical NEGATION operator.
*
* @author Bill Shannon
* @author John Mani
*/
public final class NotTerm extends SearchTerm {
/**
* The search term to negate.
*
* @serial
*/
protected SearchTerm term;
private static final long serialVersionUID = 7152293214217310216L;
public NotTerm(SearchTerm t) {
term = t;
}
/**
* Return the term to negate.
*/
public SearchTerm getTerm() {
return term;
}
/* The NOT operation */
public boolean match(Message msg) {
return !term.match(msg);
}
/**
* Equality comparison.
*/
public boolean equals(Object obj) {
if (!(obj instanceof NotTerm))
return false;
NotTerm nt = (NotTerm)obj;
return nt.term.equals(this.term);
}
/**
* Compute a hashCode for this object.
*/
public int hashCode() {
return term.hashCode() << 1;
}
}
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