DataObjectReference.java

package de.dlr.shepard.neo4Core.entities;

import de.dlr.shepard.util.Constants;
import de.dlr.shepard.util.HasId;
import java.util.Objects;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
import org.neo4j.ogm.annotation.NodeEntity;
import org.neo4j.ogm.annotation.Relationship;

@NodeEntity
@Data
@NoArgsConstructor
public class DataObjectReference extends BasicReference {

  @ToString.Exclude
  @Relationship(type = Constants.POINTS_TO)
  private DataObject referencedDataObject;

  private String relationship;

  /**
   * For testing purposes only
   *
   * @param id identifies the entity
   */
  public DataObjectReference(long id) {
    super(id);
  }

  @Override
  public int hashCode() {
    final int prime = 31;
    int result = super.hashCode();
    result = prime * result + Objects.hash(relationship);
    result = prime * result + HasId.hashcodeHelper(referencedDataObject);
    return result;
  }

  @Override
  public boolean equals(Object obj) {
    if (this == obj) return true;
    if (!super.equals(obj)) return false;
    if (!(obj instanceof DataObjectReference)) return false;
    DataObjectReference other = (DataObjectReference) obj;
    return (
      Objects.equals(relationship, other.relationship) &&
      HasId.equalsHelper(referencedDataObject, other.referencedDataObject)
    );
  }
}