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Groovy example source code file (

This example Groovy source code file ( is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

closure, eventtriggerbinding, eventtriggerfullbinding, eventtriggerfullbinding, fullbinding, object, object, sourcebinding, sourcebinding, string, string, targetbinding, triggerbinding, unsupportedoperationexception

The Groovy source code

 * Copyright 2007 the original author or authors.
 * 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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.codehaus.groovy.binding;

import groovy.lang.Closure;
import org.codehaus.groovy.runtime.InvokerHelper;

 * @author <a href="">Danno Ferrin
 * @version $Revision: 21237 $
 * @since Groovy 1.1
public class EventTriggerBinding implements TriggerBinding {

    Object triggerBean;
    String eventName;

    public EventTriggerBinding(Object triggerBean, String eventName) {
        this.triggerBean = triggerBean;
        this.eventName = eventName;

    public FullBinding createBinding(final SourceBinding sourceBinding, final TargetBinding targetBinding) {
        return new EventTriggerFullBinding(sourceBinding, targetBinding);

    public Object getTriggerBean() {
        return triggerBean;

    public void setTriggerBean(Object triggerBean) {
        this.triggerBean = triggerBean;

    public String getEventName() {
        return eventName;

    public void setEventName(String eventName) {
        this.eventName = eventName;

    private class EventTriggerFullBinding extends AbstractFullBinding {

        Closure handler;

        public EventTriggerFullBinding(final SourceBinding sourceBinding, TargetBinding targetBinding) {
            handler = new Closure(triggerBean) {
                public Object call(Object... params) {
                    if (sourceBinding instanceof ClosureSourceBinding) {
                    return null;

        public void bind() {
            InvokerHelper.setProperty(triggerBean, eventName, handler);

        public void unbind() {
            throw new UnsupportedOperationException();

        public void rebind() {
            throw new UnsupportedOperationException();

Other Groovy examples (source code examples)

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