com.wkit.lost.mybatis.utils.ArgumentUtil Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of mybatis-core Show documentation

Mybatis extension kit.

The newest version!

package com.wkit.lost.mybatis.utils;

import com.wkit.lost.mybatis.core.metadata.ColumnWrapper;

import java.util.Optional;

/**
 * 参数工具类
 * @author wvkity
 */
public abstract class ArgumentUtil {

    /**
     * 参数填充
     * @param column      字段映射对象
     * @param placeholder 占位字符串
     * @return 字符串
     */
    public static String fill( ColumnWrapper column, String placeholder ) {
        StringBuffer buffer = new StringBuffer( 60 );
        buffer.append( "#{" ).append( placeholder );
        if ( column != null ) {
            // 指定JDBC类型
            Optional.ofNullable( column.getJdbcType() ).ifPresent( it -> buffer.append( ", jdbcType=" )
                    .append( it.toString() ) );
            // 指定Java类型
            if ( column.isUseJavaType() && !column.getJavaType().isArray() ) {
                buffer.append( ", javaType=" ).append( column.getJavaType().getCanonicalName() );
            }
            // 指定处理类型
            Optional.ofNullable( column.getTypeHandler() ).ifPresent( it -> buffer.append( ", typeHandler=" )
                    .append( it.getCanonicalName() ) );
        }
        buffer.append( "}" );
        return buffer.toString();
    }
}