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EchoAttributesTag.javaAPI DocGlassfish v2 API3009Fri May 04 22:34:14 BST 2007jsp2.examples.simpletag

EchoAttributesTag.java


/*
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 * 
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 * 
 * Portions Copyright Apache Software Foundation.
 * 
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
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 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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 * Header, with the fields enclosed by brackets [] replaced by your own
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package jsp2.examples.simpletag;

import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.tagext.SimpleTagSupport;
import javax.servlet.jsp.tagext.DynamicAttributes;
import java.util.ArrayList;
import java.util.Iterator;
import java.io.IOException;

/**
 * SimpleTag handler that echoes all its attributes 
 */
public class EchoAttributesTag 
    extends SimpleTagSupport
    implements DynamicAttributes
{
    private ArrayList keys = new ArrayList();
    private ArrayList values = new ArrayList();

    public void doTag() throws JspException, IOException {
	JspWriter out = getJspContext().getOut();
	for( int i = 0; i < keys.size(); i++ ) {
	    String key = (String)keys.get( i );
	    Object value = values.get( i );
	    out.println( "<li>" + key + " = " + value + "</li>" );
        }
    }

    public void setDynamicAttribute( String uri, String localName, 
	Object value ) 
	throws JspException
    {
	keys.add( localName );
	values.add( value );
    }
}