Relation.java

/*
 * Copyright 2016 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.workbench.services.verifier.api.client.relations;

import org.drools.workbench.services.verifier.api.client.index.keys.UUIDKey;

public abstract class Relation<T extends Relation> {

    protected final T origin;
    protected T parent = null;

    public Relation( final T origin ) {
        this.origin = origin;
        if ( origin != null ) {
            origin.setParent( this );
        }
    }

    public T getOrigin() {
        if ( origin == null ) {
            return ( T ) this;
        } else {
            return origin;
        }
    }

    public abstract boolean foundIssue();

    public abstract UUIDKey otherUUID();

    public abstract boolean doesRelationStillExist();

    protected void setParent( final T parent ) {
        this.parent = parent;
    }

}