com.bixuebihui.jdbc.RowMapperResultReader Maven / Gradle / Ivy

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a fast small database connection pool and a active record flavor mini framework

There is a newer version: 1.15.8.3

package com.bixuebihui.jdbc;

import jakarta.validation.constraints.NotNull;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;

/**
 * RowMapperResultReader class.
 *
 * @author xingwx
 * @version $Id: $Id
 */
public class RowMapperResultReader {

	private final RowMapper handle;
	private List res;

    /**
     * Constructor for RowMapperResultReader.
     *
     * @param handle a {@link RowMapper} object.
     */
    public RowMapperResultReader(RowMapper handle){
        this.handle = handle;
    }

    /**
     * Constructor for RowMapperResultReader.
     *
     * @param handle a {@link RowMapper} object.
     * @param resultList a {@link java.util.List} object.
     */
    public RowMapperResultReader(RowMapper handle, List resultList){
        this.handle = handle;
        this.res = resultList;
    }

    /**
     * processResultSet.
     *
     * @param rs a {@link java.sql.ResultSet} object.
     * @return a {@link java.util.List} object.
     * @throws java.sql.SQLException if any.
     */
    public @NotNull List processResultSet(ResultSet rs, Set fields) throws SQLException {
        if(res==null){
            res = new ArrayList<>();
        }else{
            res.clear();
        }

        int index=1;
        while (rs.next()) {
            res.add( handle.mapRow(rs, index++, fields));
        }
        return res;
    }
}