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Java JDBC 4.0 (JRE 6+) driver for PostgreSQL database

There is a newer version: 42.7.3

package org.postgresql.jdbc2;

/**
 * Implement this interface and register the its instance to ArrayAssistantRegistry,
 * to let Postgres driver to support more array type
 *
 * @author Minglei Tu
 */
public interface ArrayAssistant {
    /**
     * get array base type
     *
     * @return array base type
     */
    Class baseType();

    /**
     * build a array element from its binary bytes
     *
     * @param bytes input bytes
     * @param pos position in input array
     * @param len length of the element
     * @return array element from its binary bytes
     */
    Object buildElement(byte[] bytes, int pos, int len);

    /**
     * build an array element from its literal string
     *
     * @param literal string representation of array element
     * @return array element
     */
    Object buildElement(String literal);
}