/*
* 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
*
* 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.codehaus.groovy.binding;
import groovy.lang.Closure;
import org.codehaus.groovy.runtime.InvokerHelper;
/**
* @author <a href="mailto:shemnon@yahoo.com">Danno Ferrin</a>
* @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) {
setSourceBinding(sourceBinding);
setTargetBinding(targetBinding);
handler = new Closure(triggerBean) {
public Object call(Object... params) {
if (sourceBinding instanceof ClosureSourceBinding) {
((ClosureSourceBinding)sourceBinding).setClosureArguments(params);
}
update();
return null;
}
};
}
public void bind() {
InvokerHelper.setProperty(triggerBean, eventName, handler);
}
public void unbind() {
throw new UnsupportedOperationException();
}
public void rebind() {
throw new UnsupportedOperationException();
}
}
}