java source code of AbstractGeometryTypeHandler

package com.eyougo.mybatis.postgis.type;

import org.apache.ibatis.type.BaseTypeHandler;
import org.apache.ibatis.type.JdbcType;
import org.postgis.Geometry;
import org.postgis.PGgeometry;

import java.sql.CallableStatement;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

/**
 * Created by mei on 31/08/2017.
 */
public abstract class AbstractGeometryTypeHandler<T extends Geometry> extends BaseTypeHandler<T>{
    public void setNonNullParameter(PreparedStatement ps, int i, T parameter, JdbcType jdbcType) throws SQLException {
        PGgeometry geometry = new PGgeometry();
        geometry.setGeometry(parameter);
        ps.setObject(i, geometry);
    }

    public T getNullableResult(ResultSet rs, String columnName) throws SQLException {
        PGgeometry pGgeometry = (PGgeometry) rs.getObject(columnName);
        if (pGgeometry == null) {
            return null;
        }
        return (T) pGgeometry.getGeometry();
    }

    public T getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
        PGgeometry pGgeometry = (PGgeometry) rs.getObject(columnIndex);
        if (pGgeometry == null) {
            return null;
        }
        return (T) pGgeometry.getGeometry();
    }

    public T getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
        PGgeometry pGgeometry = (PGgeometry) cs.getObject(columnIndex);
        if (pGgeometry == null) {
            return null;
        }
        return (T) pGgeometry.getGeometry();
    }
}