LookupEventHandler.java

/*
 * Copyright 2011 Chad Retz
 * 
 * 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.gwtnode.core.node.dns;

import org.gwtnode.core.JavaScriptFunctionArguments;
import org.gwtnode.core.JavaScriptFunctionWrapper;

/**
 * Callback for the lookup method in {@link Dns}
 * 
 * @author Chad Retz
 */
public abstract class LookupEventHandler extends JavaScriptFunctionWrapper {

    @Override
    public void call(JavaScriptFunctionArguments args) {
        onEvent((Error) args.get(0),
                args.length() > 1 ? (String) args.get(1) : null,
                args.length() > 2 ? (Integer) args.get(2) : null);
    }
    
    protected abstract void onEvent(Error err, String address, Integer family);

}