/*******************************************************************************
 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
 * in Industry THTH ry.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     VTT Technical Research Centre of Finland - initial API and implementation
 *******************************************************************************/
package org.simantics.structural2.modelingRules;

import org.simantics.db.ReadGraph;
import org.simantics.utils.ObjectUtils;

/**
 * @author Tuukka Lehtonen
 */
public class CPIgnore implements IConnectionPoint {

    public static final CPIgnore NULL_INSTANCE = new CPIgnore(null);

    public final Object data;

    public CPIgnore(Object data) {
        this.data = data;
    }

    @Override
    public String toString(ReadGraph g) {
        return "CPIgnore(" + data + ")";
    }

    @Override
    public int hashCode() {
        return ObjectUtils.hashCode(data);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        CPIgnore other = (CPIgnore) obj;
        return ObjectUtils.objectEquals(data, other.data);
    }

}