AbstractDiagram.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.kie.workbench.common.stunner.core.diagram;

import org.jboss.errai.common.client.api.annotations.MapsTo;
import org.kie.workbench.common.stunner.core.graph.Graph;

public abstract class AbstractDiagram<G extends Graph, S extends Metadata> implements Diagram<G, S> {

    private final String name;
    private final S metadata;
    private G graph;

    public AbstractDiagram(final @MapsTo("name") String name,
                           final @MapsTo("metadata") S metadata) {
        this.name = name;
        this.metadata = metadata;
    }

    public AbstractDiagram(final @MapsTo("name") String name,
                           final @MapsTo("graph") G graph,
                           final @MapsTo("metadata") S metadata) {
        this.name = name;
        this.metadata = metadata;
        this.graph = graph;
    }

    public void setGraph(G graph) {
        this.graph = graph;
    }

    @Override
    public String getName() {
        return name;
    }

    @Override
    public G getGraph() {
        return graph;
    }

    @Override
    public S getMetadata() {
        return metadata;
    }

    @Override
    public boolean equals(final Object o) {
        if (this == o) {
            return true;
        }
        if (!(o instanceof Diagram)) {
            return false;
        }
        Diagram that = (Diagram) o;
        return name != null && name.equals(that.getName());
    }

    @Override
    public int hashCode() {
        return name == null ? 0 : ~~name.hashCode();
    }
}