source: java2python/jackson-t/src/test/javaactions/testcode/actions/ActionWithBid.java

package testcode.actions;

import org.eclipse.jdt.annotation.NonNull;

import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;

/**
 * An {@link Action} containing a bid. Note that the presense of a bid does not
 * necessarily mean that an offer was placed for this bid.
 * 
 */
public abstract class ActionWithBid extends AbstractAction {
        private final @NonNull Bid bid;

        @JsonCreator
        public ActionWithBid(@JsonProperty("actor") @NonNull PartyId actor,
                        @JsonProperty("bid") @NonNull Bid bid) {
                super(actor);
                this.bid = bid;
        }

        /**
         * 
         * @return the {@link Bid} that this action is about.
         */
        public @NonNull Bid getBid() {
                return bid;
        }

        @Override
        public int hashCode() {
                final int prime = 31;
                int result = super.hashCode();
                result = prime * result + ((bid == null) ? 0 : bid.hashCode());
                return result;
        }

        /**
         * This should work also for derived classes without extra fields.
         */
        @Override
        public boolean equals(Object obj) {
                if (this == obj)
                        return true;
                if (!super.equals(obj))
                        return false;
                if (getClass() != obj.getClass())
                        return false;
                ActionWithBid other = (ActionWithBid) obj;
                if (bid == null) {
                        if (other.bid != null)
                                return false;
                } else if (!bid.equals(other.bid))
                        return false;
                return true;
        }
}