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/*
 * Copyright (c) 1997, 2020 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package jakarta.mail.search;

import jakarta.mail.Message;

/**
 * This class implements the logical AND operator on individual
 * SearchTerms.
 *
 * @author Bill Shannon
 * @author John Mani
 */
public final class AndTerm extends SearchTerm {

    /**
     * The array of terms on which the AND operator should be
     * applied.
     *
     * @serial
     */
    private SearchTerm[] terms;

    private static final long serialVersionUID = -3583274505380989582L;

    /**
     * Constructor that takes two terms.
     * 
     * @param t1 first term
     * @param t2 second term
     */
    public AndTerm(SearchTerm t1, SearchTerm t2) {
	terms = new SearchTerm[2];
	terms[0] = t1;
	terms[1] = t2;
    }

    /**
     * Constructor that takes an array of SearchTerms.
     * 
     * @param t  array of terms
     */
    public AndTerm(SearchTerm[] t) {
	terms = new SearchTerm[t.length]; // clone the array
	for (int i = 0; i < t.length; i++)
	    terms[i] = t[i];
    }

    /**
     * Return the search terms.
     *
     * @return	the search terms
     */
    public SearchTerm[] getTerms() {
	return terms.clone();
    }

    /**
     * The AND operation. 

* * The terms specified in the constructor are applied to * the given object and the AND operator is applied to their results. * * @param msg The specified SearchTerms are applied to this Message * and the AND operator is applied to their results. * @return true if the AND succeds, otherwise false */ @Override public boolean match(Message msg) { for (int i=0; i < terms.length; i++) if (!terms[i].match(msg)) return false; return true; } /** * Equality comparison. */ @Override public boolean equals(Object obj) { if (!(obj instanceof AndTerm)) return false; AndTerm at = (AndTerm)obj; if (at.terms.length != terms.length) return false; for (int i=0; i < terms.length; i++) if (!terms[i].equals(at.terms[i])) return false; return true; } /** * Compute a hashCode for this object. */ @Override public int hashCode() { int hash = 0; for (int i=0; i < terms.length; i++) hash += terms[i].hashCode(); return hash; } }





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