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JDBC client implementation over Table client, single jar

There is a newer version: 1.45.6

package com.yandex.ydb.table.values;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import com.yandex.ydb.ValueProtos;
import com.yandex.ydb.table.values.proto.ProtoType;


/**
 * @author Sergey Polovko
 */
public final class DictType implements Type {

    private final Type keyType;
    private final Type valueType;

    private DictType(Type keyType, Type valueType) {
        this.keyType = keyType;
        this.valueType = valueType;
    }

    public static DictType of(Type keyType, Type valueType) {
        return new DictType(keyType, valueType);
    }

    @Override
    public Kind getKind() {
        return Kind.DICT;
    }

    public Type getKeyType() {
        return keyType;
    }

    public Type getValueType() {
        return valueType;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || o.getClass() != DictType.class) return false;

        DictType dictType = (DictType) o;
        return keyType.equals(dictType.keyType) && valueType.equals(dictType.valueType);
    }

    @Override
    public int hashCode() {
        int result = Kind.DICT.hashCode();
        result = 31 * result + keyType.hashCode();
        result = 31 * result + valueType.hashCode();
        return result;
    }

    @Override
    public String toString() {
        return "Dict<" + keyType + ", " + valueType + '>';
    }

    @Override
    public ValueProtos.Type toPb() {
        return ProtoType.dict(keyType.toPb(), valueType.toPb());
    }

    public DictValue emptyValue() {
        return new DictValue(this, Collections.emptyMap());
    }

    public DictValue newValueCopy(Map items) {
        if (items.isEmpty()) {
            return emptyValue();
        }
        return new DictValue(this, new HashMap<>(items));
    }

    public DictValue newValueOwn(Map items) {
        if (items.isEmpty()) {
            return emptyValue();
        }
        return new DictValue(this, items);
    }
}