/*
 * Copyright 1999,2004 The Apache Software Foundation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */ 

package org.apache.taglibs.jndi;

import javax.servlet.jsp.tagext.*;

/**
 *
 * @author  Danno Ferrin <shemnon@earthlink.net>
 * @version $Revision: 1.2 $
 */
public class LookupTEI extends TagExtraInfo {

    /** Creates new UseContextTEI */
    public LookupTEI() {
    }

    public VariableInfo[] getVariableInfo(TagData data) {
        String clazz = data.getAttributeString("type");
        if (clazz == null) {
            clazz = "java.lang.Object";
        }
        return new VariableInfo[]  {
            new VariableInfo(data.getId(), clazz, true, VariableInfo.AT_END)};
    }
    
    public boolean isValid(TagData data) {
        if (data.getId() == null) {
            return false;
        }
        if (
            (data.getAttribute("context") == null) 
         && (data.getAttribute("contextRef") == null)) {
            return false;
        }
        // looking up the blank name is ok
        return true;
    }
   
}