org.drools.core.factmodel.traits.ThingProxyPlaceHolder Maven / Gradle / Ivy
/*
* Copyright 2015 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
*
* 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.core.factmodel.traits;
import java.io.Serializable;
import java.util.BitSet;
public class ThingProxyPlaceHolder extends TraitProxy implements Thing, TraitType, Serializable {
private transient static ThingProxyPlaceHolder singleton;
public static ThingProxyPlaceHolder getThingPlaceHolder() {
if ( singleton == null ) {
singleton = new ThingProxyPlaceHolder();
}
return singleton;
}
public ThingProxyPlaceHolder() {
setTypeCode( new BitSet() );
}
@Override
public boolean _isVirtual() {
return true;
}
public K getCore() {
return null;
}
public boolean isTop() {
return true;
}
@Override
public String _getTraitName() {
return Thing.class.getName();
}
@Override
public TraitableBean getObject() {
return null;
}
@Override
public boolean equals( Object o ) {
return o == singleton;
}
@Override
public int hashCode() {
return Thing.class.hashCode() ^ 31;
}
}