com.flagwind.mybatis.helpers

类 SqlHelper

java.lang.Object

com.flagwind.mybatis.helpers.SqlHelper

public class SqlHelper
extends Object

构造器概要

构造器

构造器和说明
SqlHelper()

方法概要

限定符和类型	方法和说明
static String	deleteFromTable(Class<?> entityClass, String defaultTableName) delete tableName - 动态表名
static String	fromTable(Class<?> entityClass, String defaultTableName) from tableName - 动态表名
static String	getAllColumns(Class<?> entityClass) 获取所有查询列，如id,name,code...
static String	getBindCache(EntityColumn column)
static String	getBindValue(EntityColumn column, String value)
static String	getIfCacheIsNull(EntityColumn column, String contents) 如果_cache == null
static String	getIfCacheNotNull(EntityColumn column, String contents)
static String	getIfIsNull(EntityColumn column, String contents, boolean empty) 判断自动==null的条件结构
static String	getIfIsNull(String entityName, EntityColumn column, String contents, boolean empty) 判断自动==null的条件结构
static String	getIfNotNull(EntityColumn column, String contents, boolean empty) 判断自动!
static String	getIfNotNull(String entityName, EntityColumn column, String contents, boolean empty) 判断自动!
static String	getTableName(Class<?> entityClass, String defaultTableName)
static String	insertColumns(Class<?> entityClass, boolean skipId, boolean notNull, boolean notEmpty) insert table()列
static String	insertIntoTable(Class<?> entityClass, String defaultTableName) insert into tableName - 动态表名
static String	insertValuesColumns(Class<?> entityClass, boolean skipId, boolean notNull, boolean notEmpty) insert-values()列
static String	orderByDefault(Class<?> entityClass) 获取默认的orderBy，通过注解设置的
static String	selectAllColumns(Class<?> entityClass) select xxx,xxx...
static String	selectCount(Class<?> entityClass) select count(x)
static String	selectCountExists(Class<?> entityClass) select case when count(x) > 0 then 1 else 0 end
static String	updateSetColumns(Class<?> entityClass, String entityName, boolean notNull, boolean notEmpty) update set列
static String	updateTable(Class<?> entityClass, String defaultTableName) update tableName - 动态表名
static String	whereAllIfColumns(Class<?> entityClass, boolean empty) where所有列的条件，会判断是否!
static String	wherePKColumn(Class<?> entityClass, String keyName) where主键条件(参数为单个值如userReository.getById("123456"))
static String	wherePKColumns(Class<?> entityClass) where主键条件(参数为对象如userReository.selectByKey(user))

从类继承的方法 java.lang.Object

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

构造器详细资料

SqlHelper

public SqlHelper()

方法详细资料

getTableName

public static String getTableName(Class<?> entityClass,
                                  String defaultTableName)

getBindCache

public static String getBindCache(EntityColumn column)

参数:

column -

返回:

getBindValue

public static String getBindValue(EntityColumn column,
                                  String value)

参数:

column -

返回:

getIfCacheNotNull

public static String getIfCacheNotNull(EntityColumn column,
                                       String contents)

参数:

column -

返回:

getIfCacheIsNull

public static String getIfCacheIsNull(EntityColumn column,
                                      String contents)

如果_cache == null

参数:

column -

返回:

getIfNotNull

public static String getIfNotNull(EntityColumn column,
                                  String contents,
                                  boolean empty)

判断自动!=null的条件结构

参数:

column -

contents -

empty -

返回:

getIfIsNull

public static String getIfIsNull(EntityColumn column,
                                 String contents,
                                 boolean empty)

判断自动==null的条件结构

参数:

column -

contents -

empty -

返回:

getIfNotNull

public static String getIfNotNull(String entityName,
                                  EntityColumn column,
                                  String contents,
                                  boolean empty)

判断自动!=null的条件结构

参数:

entityName -

column -

contents -

empty -

返回:

getIfIsNull

public static String getIfIsNull(String entityName,
                                 EntityColumn column,
                                 String contents,
                                 boolean empty)

判断自动==null的条件结构

参数:

entityName -

column -

contents -

empty -

返回:

getAllColumns

public static String getAllColumns(Class<?> entityClass)

获取所有查询列，如id,name,code...

参数:

entityClass -

返回:

selectAllColumns

public static String selectAllColumns(Class<?> entityClass)

select xxx,xxx...

参数:

entityClass -

返回:

selectCount

public static String selectCount(Class<?> entityClass)

select count(x)

参数:

entityClass -

返回:

selectCountExists

public static String selectCountExists(Class<?> entityClass)

select case when count(x) > 0 then 1 else 0 end

参数:

entityClass -

返回:

fromTable

public static String fromTable(Class<?> entityClass,
                               String defaultTableName)

from tableName - 动态表名

参数:

entityClass -

defaultTableName -

返回:

updateTable

public static String updateTable(Class<?> entityClass,
                                 String defaultTableName)

update tableName - 动态表名

参数:

entityClass -

defaultTableName - 默认表名

返回:

deleteFromTable

public static String deleteFromTable(Class<?> entityClass,
                                     String defaultTableName)

delete tableName - 动态表名

参数:

entityClass -

defaultTableName -

返回:

insertIntoTable

public static String insertIntoTable(Class<?> entityClass,
                                     String defaultTableName)

insert into tableName - 动态表名

参数:

entityClass -

defaultTableName -

返回:

insertColumns

public static String insertColumns(Class<?> entityClass,
                                   boolean skipId,
                                   boolean notNull,
                                   boolean notEmpty)

insert table()列

参数:

entityClass -

skipId - 是否从列中忽略id类型

notNull - 是否判断!=null

notEmpty - 是否判断String类型!=''

返回:

insertValuesColumns

public static String insertValuesColumns(Class<?> entityClass,
                                         boolean skipId,
                                         boolean notNull,
                                         boolean notEmpty)

insert-values()列

参数:

entityClass -

skipId - 是否从列中忽略id类型

notNull - 是否判断!=null

notEmpty - 是否判断String类型!=''

返回:

updateSetColumns

public static String updateSetColumns(Class<?> entityClass,
                                      String entityName,
                                      boolean notNull,
                                      boolean notEmpty)

update set列

参数:

entityClass -

entityName - 实体映射名

notNull - 是否判断!=null

notEmpty - 是否判断String类型!=''

返回:

wherePKColumn

public static String wherePKColumn(Class<?> entityClass,
                                   String keyName)

where主键条件(参数为单个值如userReository.getById("123456"))

参数:

entityClass -

keyName -

返回:

wherePKColumns

public static String wherePKColumns(Class<?> entityClass)

where主键条件(参数为对象如userReository.selectByKey(user))

参数:

entityClass -

返回:

whereAllIfColumns

public static String whereAllIfColumns(Class<?> entityClass,
                                       boolean empty)

where所有列的条件，会判断是否!=null

参数:

entityClass -

返回:

orderByDefault

public static String orderByDefault(Class<?> entityClass)

获取默认的orderBy，通过注解设置的

参数:

entityClass -

返回: