/**
* Copyright 2010 JBoss Inc
*
* 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.drools.concurrent;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import org.drools.FactHandle;
import org.drools.WorkingMemory;
public class UpdateObject
implements
Command,
Future {
private FactHandle factHandle;
private Object object;
private volatile boolean done;
private Exception e;
public UpdateObject() {
}
public UpdateObject(final FactHandle factHandle,
final Object object) {
this.factHandle = factHandle;
this.object = object;
}
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
factHandle = (FactHandle)in.readObject();
object = in.readObject();
done = in.readBoolean();
e = (Exception)in.readObject();
}
public void writeExternal(ObjectOutput out) throws IOException {
out.writeObject(factHandle);
out.writeObject(object);
out.writeBoolean(done);
out.writeObject(e);
}
public void execute(final WorkingMemory workingMemory) {
workingMemory.update( this.factHandle,
this.object );
this.done = true;
}
public Object getObject() {
return null;
}
public boolean isDone() {
return this.done == true;
}
public boolean exceptionThrown() {
return e != null;
}
public Exception getException() {
return this.e;
}
}