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package javax.mail.search;

import javax.mail.Message;
import javax.mail.Address;

This class implements string comparisons for the From Address
header. 

Note that this class differs from the FromTerm class
in that this class does comparisons on address strings rather than Address
objects. The string comparisons are case-insensitive.
Since:
      JavaMail 1.1/**
 * This class implements string comparisons for the From Address
 * header. <p>
 *
 * Note that this class differs from the <code>FromTerm</code> class
 * in that this class does comparisons on address strings rather than Address
 * objects. The string comparisons are case-insensitive.
 *
 * @since       JavaMail 1.1
 */

public final class FromStringTerm extends AddressStringTerm {

    private static final long serialVersionUID = 5801127523826772788L;

    
Constructor.
Params:
pattern –   the address pattern to be compared./**
     * Constructor.
     *
     * @param pattern   the address pattern to be compared.
     */
    public FromStringTerm(String pattern) {
	super(pattern);
    }

    
Check whether the address string specified in the constructor is
a substring of the From address of this Message.
Params:
msg – 	The comparison is applied to this Message's From
	    	address.
Returns:
         true if the match succeeds, otherwise false./**
     * Check whether the address string specified in the constructor is
     * a substring of the From address of this Message.
     *
     * @param   msg 	The comparison is applied to this Message's From
     *		    	address.
     * @return          true if the match succeeds, otherwise false.
     */
    @Override
    public boolean match(Message msg) {
	Address[] from;

	try {
	    from = msg.getFrom();
	} catch (Exception e) {
	    return false;
	}

	if (from == null)
	    return false;
	
	for (int i=0; i < from.length; i++)
	    if (super.match(from[i]))
		return true;
	return false;
    }

    
Equality comparison.
/**
     * Equality comparison.
     */
    @Override
    public boolean equals(Object obj) {
	if (!(obj instanceof FromStringTerm))
	    return false;
	return super.equals(obj);
    }
}