cherry.foundation.type.mybatis.EnumCodeIntegerTypeHandler.java Source code

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Here is the source code for cherry.foundation.type.mybatis.EnumCodeIntegerTypeHandler.java

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/*
 * Copyright 2014,2015 agwlvssainokuni
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package cherry.foundation.type.mybatis;

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

import org.apache.ibatis.type.BaseTypeHandler;
import org.apache.ibatis.type.JdbcType;

import cherry.foundation.type.Code;
import cherry.foundation.type.EnumCodeUtil;
import cherry.foundation.type.EnumCodeUtil.CodeMap;

public abstract class EnumCodeIntegerTypeHandler<E extends Code<Integer>> extends BaseTypeHandler<E> {

    private CodeMap<Integer, E> codeMap;

    protected EnumCodeIntegerTypeHandler(Class<E> type, E defaultValue) {
        this.codeMap = EnumCodeUtil.getCodeMap(type, defaultValue);
    }

    @Override
    public void setNonNullParameter(PreparedStatement ps, int i, E parameter, JdbcType jdbcType)
            throws SQLException {
        ps.setInt(i, parameter.code());
    }

    @Override
    public E getNullableResult(ResultSet rs, String columnName) throws SQLException {
        int code = rs.getInt(columnName);
        if (rs.wasNull()) {
            return null;
        }
        return codeMap.get(code);
    }

    @Override
    public E getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
        int code = rs.getInt(columnIndex);
        if (rs.wasNull()) {
            return null;
        }
        return codeMap.get(code);
    }

    @Override
    public E getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
        int code = cs.getInt(columnIndex);
        if (cs.wasNull()) {
            return null;
        }
        return codeMap.get(code);
    }

}