Class SchemaHelper

java.lang.Object

cool.scx.jdbc.SchemaHelper

public final class SchemaHelper
extends Object

架构管理工具

Version:

0.0.1

Author:

scx567888

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final record	SchemaHelper.ColumnVerifyResult
static final record	SchemaHelper.NeedChangeColumn
static final record	SchemaHelper.TableVerifyResult

Constructor Summary

Constructors

Constructor	Description
SchemaHelper()

Method Summary

Modifier and Type	Method	Description
static boolean	checkNeedFixTable(Table tableInfo, JDBCContext jdbcContext)	检查是否需要修复表
static void	fixTable(Table tableInfo, JDBCContext jdbcContext)	和当前数据中同名表进行比对 进行修复 (若表不存在则创建,若存在则只添加不存在的列)
static String	getMigrateSQL(Table oldTable, Table newTable, Dialect dialect)	获取迁移 SQL (当前只支持 创建不存在的新列) todo 需要支持删除旧列和修改列
static SchemaHelper.ColumnVerifyResult	verifyColumn(Column oldColumn, Column newColumn)
static SchemaHelper.TableVerifyResult	verifyTable(Table oldTable, Table newTable)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SchemaHelper

public SchemaHelper()

Method Details

getMigrateSQL

public static String getMigrateSQL(Table oldTable,
 Table newTable,
 Dialect dialect)

获取迁移 SQL (当前只支持 创建不存在的新列) todo 需要支持删除旧列和修改列

Parameters:

oldTable - 旧表

newTable - 新表

dialect - 方言

Returns:

sql 不需要迁移语句则返回 null

verifyColumn

public static SchemaHelper.ColumnVerifyResult verifyColumn(Column oldColumn,
 Column newColumn)

verifyTable

public static SchemaHelper.TableVerifyResult verifyTable(Table oldTable,
 Table newTable)

fixTable

public static void fixTable(Table tableInfo,
 JDBCContext jdbcContext)
                     throws SQLException

和当前数据中同名表进行比对 进行修复 (若表不存在则创建,若存在则只添加不存在的列)

Parameters:

tableInfo - a

Throws:

SQLException - a

checkNeedFixTable

public static boolean checkNeedFixTable(Table tableInfo,
 JDBCContext jdbcContext)
                                 throws SQLException

检查是否需要修复表

Parameters:

tableInfo - a

Returns:

true 需要 false 不需要

Throws:

SQLException - e