org.drools.core.reteoo.InitialFactImpl Maven / Gradle / Ivy
/*
* Copyright 2005 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.
* 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.core.reteoo;
import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import org.drools.core.InitialFact;
/**
* We dont want users to be able to instantiate InitialFact so we expose it as
* an interface and make the class and its constructor package protected
*/
public final class InitialFactImpl
implements
InitialFact,
Externalizable {
private static final InitialFact INSTANCE = new InitialFactImpl();
private final int hashCode = "InitialFactImpl".hashCode();
public static InitialFact getInstance() {
return InitialFactImpl.INSTANCE;
}
public InitialFactImpl() {
}
public void readExternal(ObjectInput in) throws IOException,
ClassNotFoundException {
}
public void writeExternal(ObjectOutput out) throws IOException {
}
public int hashCode() {
return this.hashCode;
}
public boolean equals(final Object object) {
if ( this == object ) {
return true;
}
if ( object == null || !(object instanceof InitialFactImpl) ) {
return false;
}
return true;
}
}