Condition (Bee 1.8 API)

所有超级接口:

ConditionAssistant
```
public interface Condition
extends ConditionAssistant
```
为面向对象方式操作数据库提供封装的条件.Condition for operate DB with Object Oriented Programming way. 用户需要保证SQL的书写顺序,如order by应在group by的后面.

从以下版本开始:

1.6

作者:

Kingstar

方法概要

方法
限定符和类型	方法和说明
`Condition`	`and()` 默认自动加 'and'.Default will automatically add 'and'.
`Condition`	`between(String field, Number low, Number high)`
`Condition`	`between(String field, String low, String high)`
`Condition`	`forUpdate()` 锁定查询的部分记录(仅用于SQL的单个表select)
`Condition`	`groupBy(String field)`
`Condition`	`having(FunctionType functionType, String field, Op Op, Number value)` eg: having(FunctionType.MIN, "field", Op.ge, 60)-->having min(field)>=60
`Condition`	`having(String expressionStr)` eg:having("count()>5") --> having count()>5
`Condition`	`lParentheses()` 添加左括号.Add left parentheses.
`Condition`	`notBetween(String field, Number low, Number high)`
`Condition`	`notBetween(String field, String low, String high)`
`Condition`	`op(String field, Op Op, Object value)` 添加一个表达式条件.Add a expression condition.
`Condition`	`or()` 添加 'or'.Add 'or'.
`Condition`	`orderBy(FunctionType functionType, String field, OrderType orderType)` eg: orderBy(FunctionType.MAX, "total", OrderType.DESC)-->order by max(total) desc
`Condition`	`orderBy(String field)` eg: orderBy("price")-->order by price
`Condition`	`orderBy(String field, OrderType orderType)` eg: orderBy("price", OrderType.DESC)-->order by price desc
`Condition`	`rParentheses()` 添加右括号.Add right parentheses.
`Condition`	`selectField(String fieldList)` 指定需要查询的部分字段(仅用于SQL的select).Specify the partial fields to be queried (only for select of SQL).
`Condition`	`set(String fieldNmae, Number num)` 设置需要更新的字段(仅用于SQL的update);当要更新的字段也需要用于where条件时,可用该方法 Set the fields that need to be updated (only for update of SQL ); this method can be used when the set fields also need to be used for the where expression.
`Condition`	`set(String fieldNmae, String value)` 设置需要更新的字段(仅用于SQL的update);当要更新的字段也需要用于where条件时,可用该方法 Set the fields that need to be updated (only for update of SQL); this method can be used when the set fields also need to be used for the where expression.
`Condition`	`setAdd(String field, Number num)` 设置需要更新的字段(仅用于SQL的update),字段在自身基础上变化.Set the fields to be updated (for only update of SQL),and the field change on itself.
`Condition`	`setAdd(String field, String fieldName)` 设置需要更新的字段(仅用于SQL的update),字段在自身基础上变化.Set the fields to be updated (for only update of SQL),and the field change on itself.
`Condition`	`setIncludeType(IncludeType includeType)` 设置IncludeType过滤参数.op,between,notBetween方法设置的字段,不受includeType的值影响.Set IncludeType.
`Condition`	`setMultiply(String field, Number num)` 设置需要更新的字段(仅用于SQL的update),字段在自身基础上变化.Set the fields to be updated (for only update of SQL),and the field change on itself.
`Condition`	`setMultiply(String field, String fieldName)` 设置需要更新的字段(仅用于SQL的update),字段在自身基础上变化.Set the fields to be updated (for only update of SQL),and the field change on itself.
`Condition`	`size(Integer size)` 添加用于分页时设置每页返回的记录数量(仅用于SQL的select).For setting the size of the page(only for select of SQL).
`Condition`	`start(Integer start)` 添加用于分页时设置开始的页数(仅用于SQL的select).For setting the start of the page(only for select of SQL).

从接口继承的方法 org.teasoft.bee.osql.ConditionAssistant
getFieldSet, getForUpdate, getIncludeType, getSelectField, getUpdatefieldSet, setSuidType

- 方法详细资料
  - start
```
Condition start(Integer start)
```
    添加用于分页时设置开始的页数(仅用于SQL的select).For setting the start of the page(only for select of SQL).
    
    参数:
    start - 开始下标(从0或1开始,eg:MySQL是0,Oracle是1). start index,min value is 0 or 1(eg:MySQL is 0,Oracle is 1).
    
    返回:
    Condition
  - size
```
Condition size(Integer size)
```
    添加用于分页时设置每页返回的记录数量(仅用于SQL的select).For setting the size of the page(only for select of SQL).
    
    参数:
    size - 结果集大小大于等于1. fetch result size (>0).
    
    返回:
    Condition
  - setIncludeType
```
Condition setIncludeType(IncludeType includeType)
```
    设置IncludeType过滤参数.op,between,notBetween方法设置的字段,不受includeType的值影响.Set IncludeType. 如果Condition没有使用该方法设置,则按默认过滤方式处理.
    
    参数:
    includeType -
    
    返回:
    Condition
    从以下版本开始:
    
    1.7
  - op
```
Condition op(String field,
           Op Op,
           Object value)
```
    添加一个表达式条件.Add a expression condition.
    
    参数:
    field - 字段名.field name
    Op - 操作符.operator.
    value - 字段对应的值.value of the field.
    
    返回:
    Condition
  - and
```
Condition and()
```
    默认自动加 'and'.Default will automatically add 'and'.
    
    返回:
    Condition
  - or
```
Condition or()
```
    添加 'or'.Add 'or'.
    
    返回:
    Condition
  - lParentheses
```
Condition lParentheses()
```
    添加左括号.Add left parentheses.
    
    返回:
    Condition
  - rParentheses
```
Condition rParentheses()
```
    添加右括号.Add right parentheses.
    
    返回:
    Condition
  - between
```
Condition between(String field,
                Number low,
                Number high)
```
    参数:
    field -
    low -
    high -
    
    返回:
    Condition
  - notBetween
```
Condition notBetween(String field,
                   Number low,
                   Number high)
```
    参数:
    field -
    low -
    high -
    
    返回:
    Condition
  - between
```
Condition between(String field,
                String low,
                String high)
```
    参数:
    field -
    low -
    high -
    
    返回:
    Condition
  - notBetween
```
Condition notBetween(String field,
                   String low,
                   String high)
```
    参数:
    field -
    low -
    high -
    
    返回:
    Condition
  - groupBy
```
Condition groupBy(String field)
```
    参数:
    field -
    
    返回:
    Condition
  - having
```
Condition having(String expressionStr)
```
    eg:having("count(*)>5") --> having count(*)>5
    
    参数:
    expressionStr - 表达式字符串,field不会被转化. expression string,if contain field,it will not be translated.
    
    返回:
    Condition
  - having
```
Condition having(FunctionType functionType,
               String field,
               Op Op,
               Number value)
```
    eg: having(FunctionType.MIN, "field", Op.ge, 60)-->having min(field)>=60
    
    参数:
    functionType - 函数类型
    field - 实体字段,会被命名转换(如果需要).
    Op - 操作类型
    value - 值
    
    返回:
    Condition
  - orderBy
```
Condition orderBy(String field)
```
    eg: orderBy("price")-->order by price
    
    参数:
    field - 用于排序的字段名.field name.
    
    返回:
    Condition
  - orderBy
```
Condition orderBy(String field,
                OrderType orderType)
```
    eg: orderBy("price", OrderType.DESC)-->order by price desc
    
    参数:
    field - 用于排序的字段名.field name.
    orderType - 排序类型(asc或desc). order type(asc or desc)
    
    返回:
    Condition
  - orderBy
```
Condition orderBy(FunctionType functionType,
                String field,
                OrderType orderType)
```
    eg: orderBy(FunctionType.MAX, "total", OrderType.DESC)-->order by max(total) desc
    
    参数:
    functionType - 函数类型.Function type of SQL.
    field - 用于排序的字段名.field name.
    orderType - 排序类型(asc或desc). order type(asc or desc)
    
    返回:
    Condition
  - setAdd
```
Condition setAdd(String field,
               Number num)
```
    设置需要更新的字段(仅用于SQL的update),字段在自身基础上变化.Set the fields to be updated (for only update of SQL),and the field change on itself.
    eg: setAdd("price",2.0)--> price=price+2.0
    
    参数:
    field -
    num -
    
    返回:
    Condition
    从以下版本开始:
    
    1.7.2
  - setMultiply
```
Condition setMultiply(String field,
                    Number num)
```
    设置需要更新的字段(仅用于SQL的update),字段在自身基础上变化.Set the fields to be updated (for only update of SQL),and the field change on itself.
    eg: setMultiply("price",1.05)--> price=price*1.05
    
    参数:
    field -
    num -
    
    返回:
    Condition
    从以下版本开始:
    
    1.7.2
  - setAdd
```
Condition setAdd(String field,
               String fieldName)
```
    设置需要更新的字段(仅用于SQL的update),字段在自身基础上变化.Set the fields to be updated (for only update of SQL),and the field change on itself.
    eg:setAdd("price","delta")--> price=price+delta
    
    参数:
    field -
    fieldName -
    
    返回:
    Condition
    从以下版本开始:
    
    1.8
  - setMultiply
```
Condition setMultiply(String field,
                    String fieldName)
```
    设置需要更新的字段(仅用于SQL的update),字段在自身基础上变化.Set the fields to be updated (for only update of SQL),and the field change on itself.
    eg: setMultiply("price","delta")--> price=price*delta
    
    参数:
    field -
    fieldName - another fieldName
    
    返回:
    Condition
    从以下版本开始:
    
    1.8
  - set
```
Condition set(String fieldNmae,
            Number num)
```
    设置需要更新的字段(仅用于SQL的update);当要更新的字段也需要用于where条件时,可用该方法
    Set the fields that need to be updated (only for update of SQL ); this method can be used when the set fields also need to be used for the where expression.
    eg: set("maxid", 1000)-->maxid=1000
    
    参数:
    fieldNmae -
    num -
    
    返回:
    Condition
    从以下版本开始:
    
    1.8
  - set
```
Condition set(String fieldNmae,
            String value)
```
    设置需要更新的字段(仅用于SQL的update);当要更新的字段也需要用于where条件时,可用该方法
    Set the fields that need to be updated (only for update of SQL); this method can be used when the set fields also need to be used for the where expression.
    eg: set("name", 'bee')-->name='bee'
    
    参数:
    fieldNmae -
    value -
    
    返回:
    Condition
    从以下版本开始:
    
    1.8
  - selectField
```
Condition selectField(String fieldList)
```
    指定需要查询的部分字段(仅用于SQL的select).Specify the partial fields to be queried (only for select of SQL).
    
    参数:
    fieldList - 需要查询的字段,多个用逗号隔开. select fields,if more than one,separate with comma.
    
    返回:
    Condition
    从以下版本开始:
    
    1.8
  - forUpdate
```
Condition forUpdate()
```
    锁定查询的部分记录(仅用于SQL的单个表select)
    
    返回:
    Condition
    从以下版本开始:
    
    1.8

接口 Condition

方法概要

从接口继承的方法 org.teasoft.bee.osql.ConditionAssistant

方法详细资料

start

size

setIncludeType

op

and

or

lParentheses

rParentheses

between

notBetween

between

notBetween

groupBy

having

having

orderBy

orderBy

orderBy

setAdd

setMultiply

setAdd

setMultiply

set

set

selectField

forUpdate