org.simplity.tp.JumpTo Maven / Gradle / Ivy
The newest version!
/*
* Copyright (c) 2016 simplity.org
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package org.simplity.tp;
import org.simplity.kernel.Tracer;
import org.simplity.kernel.value.Value;
import org.simplity.service.ServiceContext;
/**
* service has actions that are executed in a sequence. JumpTo allows you to
* change this sequence.
*
*
* @author simplity.org
*
*/
public class JumpTo extends org.simplity.tp.Action {
/**
* returns either a name of action to go to, or "_stop", "_error",
* "_continue", "_break"
*/
String toAction;
/**
* cached for performance
*/
private Value returnValue;
@Override
protected Value doAct(ServiceContext ctx) {
Tracer.trace("Trying to jump with value = " + this.returnValue);
return this.returnValue;
}
/**
*
* @return if this is for a signal, then signal, else null
*/
public boolean canJumpOut() {
if (JumpSignal._BREAK.equals(this.toAction) || JumpSignal._STOP.equals(this.toAction)) {
return true;
}
return false;
}
@Override
public void getReady(int idx, Service service) {
super.getReady(idx, service);
this.returnValue = Value.newTextValue(this.toAction);
}
}