co.cask.cdap.data2.metadata.lineage.Lineage.java Source code

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Here is the source code for co.cask.cdap.data2.metadata.lineage.Lineage.java

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/*
 * Copyright  2015 Cask Data, Inc.
 *
 * 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 co.cask.cdap.data2.metadata.lineage;

import com.google.common.collect.ImmutableSet;

import java.util.Objects;
import java.util.Set;

/**
 * Represents the data access relations between Programs and Datasets.
 */
public class Lineage {
    private final Set<Relation> relations;

    public Lineage(Set<Relation> relations) {
        this.relations = ImmutableSet.copyOf(relations);
    }

    public Set<Relation> getRelations() {
        return relations;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        Lineage lineage = (Lineage) o;
        return Objects.equals(relations, lineage.relations);
    }

    @Override
    public int hashCode() {
        return Objects.hash(relations);
    }

    @Override
    public String toString() {
        return "Lineage{" + "relations=" + relations + '}';
    }
}