source: issuevalue/src/main/java/geniusweb/issuevalue/DiscreteValueSet.java

package geniusweb.issuevalue;

import java.math.BigInteger;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.JsonAutoDetect.Visibility;
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;

import tudelft.utilities.immutablelist.ArrayListSet;

/**
 * set of discrete values
 */
// disable the inherited deserializer to prevent getting into infinite loop...
@JsonDeserialize(using = JsonDeserializer.None.class)
@JsonAutoDetect(fieldVisibility = Visibility.ANY, getterVisibility = Visibility.NONE, setterVisibility = Visibility.NONE)
public class DiscreteValueSet implements ValueSet {
        /*
         * final, must be immutable so do not provide external access to this list.
         * ArrayList (instead of List) to help Jackson serializer which avoids
         * per-field type annotations.
         */
        private final ArrayListSet<DiscreteValue> values = new ArrayListSet<DiscreteValue>();

        @JsonCreator
        public DiscreteValueSet(
                        @JsonProperty("values") Collection<DiscreteValue> issuevalues) {
                this.values.addAll(issuevalues);
        }

        public DiscreteValueSet(DiscreteValue... issuevalues) {
                for (DiscreteValue value : issuevalues) {
                        this.values.add(value);
                }
        }

        public List<DiscreteValue> getValues() {
                return Collections.unmodifiableList(values);
        }

        @Override
        public Boolean contains(Value value) {
                return values.contains(value);
        }

        @Override
        public DiscreteValue get(BigInteger index) {
                return values.get(index.intValue());
        }

        @Override
        public BigInteger size() {
                return BigInteger.valueOf(values.size());
        }

        @Override
        public DiscreteValue get(long index) {
                return values.get((int) index);
        }

        @Override
        public Iterator iterator() {
                return values.iterator();
        }

        @Override
        public String toString() {
                return "DiscreteValueSet" + values;
        }

        @Override
        public int hashCode() {
                final int prime = 31;
                int result = 1;
                result = prime * result + ((values == null) ? 0 : values.hashCode());
                return result;
        }

        @Override
        public boolean equals(Object obj) {
                if (this == obj)
                        return true;
                if (obj == null)
                        return false;
                if (getClass() != obj.getClass())
                        return false;
                DiscreteValueSet other = (DiscreteValueSet) obj;
                if (values == null) {
                        if (other.values != null)
                                return false;
                } else if (!values.equals(other.values))
                        return false;
                return true;
        }

}